Kohler Command PRO ECV630 User manual

ECV630-ECV749, CV735, CV26, CV745
Service Manual
24 690 02 Rev. H KohlerEngines.com 1
2 Safety
3 Maintenance
5 Specifications
15 Tools and Aids
18 Troubleshooting
22 Air Cleaner/Intake
23 Electronic Fuel Injection (EFI) System-ECV
48 Electronic Fuel Injection (EFI) System-Bosch
78 Governor System
86 Lubrication System
88 Electrical System
93 Starter System
97 Disassembly/Inspection and Service
114 Reassembly
IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating
instruction of equipment that this engine powers.
Ensure engine is stopped and level before performing any maintenance or service.

Safety
2 24 690 02 Rev. HKohlerEngines.com
SAFETY PRECAUTIONS
WARNING: A hazard that could result in death, serious injury, or substantial property damage.
CAUTION: A hazard that could result in minor personal injury or property damage.
NOTE: is used to notify people of important installation, operation, or maintenance information.
WARNING
Explosive Fuel can cause
fires and severe burns.
Do not fill fuel tank while
engine is hot or running.
Gasoline is extremely flammable
and its vapors can explode if
ignited. Store gasoline only in
approved containers, in well
ventilated, unoccupied buildings,
away from sparks or flames.
Spilled fuel could ignite if it comes
in contact with hot parts or sparks
from ignition. Never use gasoline
as a cleaning agent.
WARNING
Rotating Parts can cause
severe injury.
Stay away while engine
is in operation.
Keep hands, feet, hair, and
clothing away from all moving
parts to prevent injury. Never
operate engine with covers,
shrouds, or guards removed.
WARNING
Carbon Monoxide can
cause severe nausea,
fainting or death.
Avoid inhaling exhaust
fumes.
Engine exhaust gases contain
poisonous carbon monoxide.
Carbon monoxide is odorless,
colorless, and can cause death if
inhaled.
WARNING
Accidental Starts can
cause severe injury or
death.
Disconnect and ground
spark plug lead(s) before
servicing.
Before working on engine or
equipment, disable engine as
follows: 1) Disconnect spark plug
lead(s). 2) Disconnect negative (–)
battery cable from battery.
WARNING
Hot Parts can cause
severe burns.
Do not touch engine
while operating or just
after stopping.
Never operate engine with heat
shields or guards removed.
WARNING
Cleaning Solvents can
cause severe injury or
death.
Use only in well
ventilated areas away
from ignition sources.
Carburetor cleaners and solvents
are extremely flammable. Follow
cleaner manufacturer’s warnings
and instructions on its proper and
safe use. Never use gasoline as a
cleaning agent.
CAUTION
Electrical Shock can
cause injury.
Do not touch wires while
engine is running.
CAUTION
Damaging Crankshaft
and Flywheel Can Cause
Personal Injury!
Using improper procedures can
lead to broken fragments. Broken
fragments could be thrown from
engine. Always observe and use
precautions and procedures when
installing flywheel.
WARNING
High Pressure Fluids can
puncture skin and cause
severe injury or death.
Do not work on fuel
system without proper
training or safety
equipment.
Fluid puncture injuries are highly
toxic and hazardous. If an injury
occurs, seek immediate medical
attention.
WARNING
Explosive Fuel can
cause fires and severe
burns.
Fuel system ALWAYS
remains under HIGH
PRESSURE.
Wrap a shop towel completely
around fuel pump module
connector. Press release button(s)
and slowly pull connector away
from fuel pump module allowing
shop towel to absorb any residual
fuel in high pressure fuel line. Any
spilled fuel must be completely
wiped up immediately.

Maintenance
324 690 02 Rev. H KohlerEngines.com
MAINTENANCE INSTRUCTIONS
WARNING
Before working on engine or equipment, disable engine as
follows: 1) Disconnect spark plug lead(s). 2) Disconnect
negative (–) battery cable from battery.
Accidental Starts can cause severe injury or
death.
Disconnect and ground spark plug lead(s)
before servicing.
Normal maintenance, replacement or repair of emission control devices and systems may be performed by any repair
establishment or individual; however, warranty repairs must be performed by a Kohler authorized dealer.
MAINTENANCE SCHEDULE
Every 25 Hours or Annually¹
●Service/replace low-profile precleaner (if equipped). Air Cleaner/Intake
Every 100 Hours or Annually¹
●Change oil. Lubrication System
●Replace low-profile air cleaner element. Air Cleaner/Intake
●Remove and clean shrouds and cooling areas. Air Cleaner/Intake
●Check oil cooler fins, clean as necessary (if equipped). Lubrication System
Every 150 Hours
●Check heavy-duty filter minder. Air Cleaner/Intake
●Inspect heavy-duty air filter paper element and inlet screen area. Air Cleaner/Intake
Every 200 Hours¹
●Replace unique Electronic Fuel Injection (EFI) fuel filter.
Every 200 Hours
●Change oil filter. Lubrication System
●Replace spark plugs and set gap. Electrical System
Every 300 Hours¹
●Replace heavy-duty air cleaner element and check inner element. Air Cleaner/Intake
Every 600 Hours¹
●Replace heavy-duty air cleaner inner element. Air Cleaner/Intake
1Perform these procedures more frequently under severe, dusty, dirty conditions.
REPAIRS/SERVICE PARTS
Kohler genuine service parts can be purchased from Kohler authorized dealers. To find a local Kohler authorized
dealer visit KohlerEngines.com or call 1-800-544-2444 (U.S. and Canada).

Maintenance
4 24 690 02 Rev. HKohlerEngines.com
OIL RECOMMENDATIONS
We recommend use of Kohler oils for best performance.
Other high-quality detergent oils (including synthetic)
of API (American Petroleum Institute) service class SJ
or higher are acceptable. Select viscosity based on
air temperature at time of operation as shown in table
below.
FUEL RECOMMENDATIONS
WARNING
Explosive Fuel can cause fires and severe
burns.
Do not fill fuel tank while engine is hot or
running.
Gasoline is extremely flammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or flames. Spilled fuel could ignite
if it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
NOTE: E15, E20 and E85 are NOT approved and
should NOT be used; effects of old, stale or
contaminated fuel are not warrantable.
Fuel must meet these requirements:
●Clean, fresh, unleaded gasoline.
●Octane rating of 87 (R+M)/2 or higher.
●Research Octane Number (RON) 90 octane minimum.
●Gasoline up to 10% ethyl alcohol, 90% unleaded is
acceptable.
●Methyl Tertiary Butyl Ether (MTBE) and unleaded
gasoline blend (max 15% MTBE by volume) are
approved.
●Do not add oil to gasoline.
●Do not overfill fuel tank.
●Do not use gasoline older than 30 days.
STORAGE
If engine will be out of service for 2 months or more
follow procedure below.
1. Add Kohler PRO Series fuel treatment or equivalent
to fuel tank. Run engine 2-3 minutes to get stabilized
fuel into fuel system (failures due to untreated fuel
are not warrantable).
2. Change oil while engine is still warm from operation.
Remove spark plug(s) and pour about 1 oz. of
engine oil into cylinder(s). Replace spark plug(s) and
crank engine slowly to distribute oil.
3. Disconnect negative (–) battery cable.
4. Store engine in a clean, dry place.

Specifications
524 690 02 Rev. H KohlerEngines.com
Engine Dimensions with Heavy-Duty Air Cleaner
Dimensions in millimeters.
Inch equivalents shown in [ ].

Specifications
6 24 690 02 Rev. HKohlerEngines.com
Engine Dimensions with Low-Profile Air Cleaner
Dimensions in millimeters.
Inch equivalents shown in [ ].

Specifications
724 690 02 Rev. H KohlerEngines.com
ENGINE IDENTIFICATION NUMBERS
Kohler engine identification numbers (model, specification and serial) should be referenced for efficient repair,
ordering correct parts, and engine replacement.
GENERAL SPECIFICATIONS3,6 ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Bore 80 mm (3.15 in.) 83 mm (3.27 in.) 83 mm (3.27 in.)
Stroke 69 mm (2.72 in.) 67 mm (2.64 in.)
Displacement 694 cc (42.4 cu. in.) 747 cc (45.6 cu. in.) 725 cc (44 cu. in.)
Oil Capacity (refill) 1.9 L (2.0 U.S. qt.)
Maximum Angle of Operation
(@ full oil level)425°
TORQUE SPECIFICATIONS3,5 ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Blower Housing
Into cored aluminum hole or
weld nut
M5
M6
Into extruded hole in sheet
metal
M5
M6
6.2 N·m (55 in. lb.) into new holes
4.0 N·m (35 in. lb.) into used holes
10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
2.8 N·m (25 in. lb.) into new holes
2.3 N·m (20 in. lb.) into used holes
2.8 N·m (25 in. lb.) into new holes
2.3 N·m (20 in. lb.) into used holes
6.2 N·m (55 in. lb.) into new holes
4.0 N·m (35 in. lb.) into used holes
10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
Connecting Rod
Cap Fastener (torque in
increments)
8 mm straight shank
8 mm step-down
6 mm straight shank
11.6 N·m (103 in. lb.)
22.7 N·m (200 in. lb.)
14.7 N·m (130 in. lb.)
11.3 N·m (100 in. lb.)
Model. . . . . . . . . . . . . . . . . . . . . ECV630
EFI Command Engine
Vertical Shaft
Numerical Designation
Specification . . . . . . . . . . . . . . . ECV630-3001
Serial . . . . . . . . . . . . . . . . . . . . . 4223500328
Year Manufactured Code Factory Code
Code Year
42 2012
43 2013
44 2014
3 Values are in Metric units. Values in parentheses are English equivalents.
4Exceeding maximum angle of operation may cause engine damage from insufficient lubrication.
5Lubricate threads with engine oil prior to assembly.
6Any and all horsepower (hp) references by Kohler are Certified Power Ratings and per SAE J1940 & J1995 hp
standards. Details on Certified Power Ratings can be found at KohlerEngines.com.

Specifications
8 24 690 02 Rev. HKohlerEngines.com
TORQUE SPECIFICATIONS3,5 ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Crankcase
Breather Cover Fastener 11.3 N·m (100 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
7.3 N·m (65 in. lb.)
Oil Temperature Sensor 7.3 N·m (65 in. lb.)
Oil Drain Plug 13.6 N·m (10 ft. lb.)
Cylinder Head
Hex Flange Nut (torque in 2
increments)
Head Bolt (torque in 2
increments)
first to 16.9 N·m (150 in. lb.)
finally to 33.9 N·m (300 in. lb.)
first to 22.6 N·m (200 in. lb.)
finally to 41.8 N·m (370 in. lb.)
Rocker Arm Screw 11.9 N·m (105 in. lb.) 11.3 N·m (100 in. lb.)
Fan/Flywheel
Fan Fastener 9.9 N·m (88 in. lb.)
Flywheel Retaining Screw 71.6 N·m (52.8 ft. lb.) 66.4 N·m (49 ft. lb.)
Fuel Pump
Module Baffle Fastener 11.9 N·m (105 in. lb.)
Module Fastener 9.2 N·m (81 in. lb.)
Pulse Pump Bracket Fastener 2.1 N·m (25 in. lb.)
Pulse Pump Fastener to
Bracket
7.3 N·m (68 in. lb.) into new holes
6.2 N·m (55 in. lb.) into used holes
Governor (Electronic)
Governor Control Unit (GCU)
to GCU Bracket
2.1 N·m (19 in. lb.)
Digital Linear Actuator (DLA)
Bracket to GCU Bracket
10.2 N·m (90 in. lb.)
DLA to DLA Bracket Screw 3.2 N·m (28 in. lb.)
Governor (Mechanical)
Lever Nut 7.1 N·m (63 in. lb.) 6.8 N·m (60 in. lb.)
Ignition
Spark Plug 27 N·m (20 ft. lb.)
Coil Fastener 10.2 N·m (90 in. lb.)
Ignition Module Fastener 4.0-6.2 N·m (35-55 in. lb.)
Crankshaft Position Sensor
Screw
6.2 N·m (55 in. lb.)
Crankshaft Position Sensor
Bracket Screw
7.3 N·m (65 in. lb.)
Electronic Control Unit Screw 6.2 N·m (55 in. lb.)
Rectifier-Regulator Ground
Strap Fastener
first to 2.8 N·m (25 in. lb.)
finally to 2.3 N·m (20 in. lb.)
Rectifier-Regulator Fastener 1.4 N·m (12.6 in. lb.)
3 Values are in Metric units. Values in parentheses are English equivalents.
5Lubricate threads with engine oil prior to assembly.

Specifications
924 690 02 Rev. H KohlerEngines.com
TORQUE SPECIFICATIONS3,5 ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Intake Manifold
Mounting Fastener (torque in 2
increments)
first to 7.8 N·m (69 in. lb.)
finally to 10.5 N·m (93 in. lb.)
first to 7.4 N·m (66 in. lb.)
finally to 9.9 N·m (88 in. lb.)
Manifold Absolute Pressure
(MAP) Sensor Fastener
7.3 N·m (65 in. lb.)
Air Cleaner to Throttle Body
Fastener
8.2 N·m (73 in. lb.)
Bracket for Heavy-Duty Air
Cleaner to Intake
9.9 N·m (88 in. lb.)
Fuel Injector Cap Fastener 7.3 N·m (65 in. lb.)
Muffler
Retaining Nut 27.8 N·m (246 in. lb.) 24.4 N·m (216 in. lb.)
Oxygen Sensor 50.1 N·m (37 ft. lb.)
Oil Cooler
Oil Cooler/Adapter Nipple 28.5 N·m (21 ft. lb.) 27 N·m (20 ft. lb.)
Fastener
Top
Bottom
2.8 N·m (25 in. lb.)
2.3 N·m (20 in. lb.)
Oil Pan
Fastener 25.6 N·m (227 in. lb.) 24.4 N·m (216 in. lb.)
Speed Control Bracket
Fastener Assembled to
Cylinder Heads
10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
Fastener Assembled to Blower
Housing
2.8 N·m (25 in. lb.) into new holes
2.3 N·m (20 in. lb.) into used holes
Fastener Torque 10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
Starter Assembly
Thru Bolt
Nippondenso (Solenoid
Shift)
Delco-Remy (Solenoid
Shift)
5.6-9.0 N·m (49-79 in. lb.)
4.5-7.5 N·m (40-84 in. lb.)
5.6-9.0 N·m (49-79 in. lb.)
Mounting Screw 16.0 N·m (142 in. lb.) 15.3 N·m (135 in. lb.)
Brush Holder Mounting Screw
Delco-Remy Starter
2.5-3.3 N·m (22-29 in. lb.)
2.5-3.3 N·m (22-29 in. lb.)
Stator
Mounting Screw 6.2 N·m (55 in. lb.) into new holes
4.0 N·m (35 in. lb.) into used holes 6.2 N·m (55 in. lb.)
Starter Solenoid
Mounting Hardware
Nippondenso Starter
Delco-Remy Starter
4.0-6.0 N·m (35-53 in. lb.)
6.0-9.0 N·m (53-79 in. lb.)
4.0-6.0 N·m (35-53 in. lb.)
Nut, Positive (+) Brush Lead
Nippondenso Starter
Delco-Remy Starter
8.0-11.0 N·m (71-97 in. lb.)
8.0-12.0 N·m (71-106 in. lb.)
8.0-11.0 N·m (71-97 in. lb.)
3 Values are in Metric units. Values in parentheses are English equivalents.
5Lubricate threads with engine oil prior to assembly.

Specifications
10 24 690 02 Rev. HKohlerEngines.com
3 Values are in Metric units. Values in parentheses are English equivalents.
5Lubricate threads with engine oil prior to assembly.
TORQUE SPECIFICATIONS3,5 ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Valve Cover
Valve Cover Fastener
Gasket Style Cover
Black O-Ring Style Cover
w/Shoulder Screws
w/Flange Screws and
Spacers
Yellow or Brown O-Ring
Style Cover w/Integral
Metal Spacers
6.2 N·m (55 in. lb.)
3.4 N·m (30 in. lb.)
5.6 N·m (50 in. lb.)
9.9 N·m (88 in. lb.)
6.2 N·m (55 in. lb.)
CLEARANCE
SPECIFICATIONS3ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Camshaft
End Play (with shim) 0.051/0.381 mm (0.002/0.015 in.) 0.076/0.127 mm (0.0030/0.0050 in.)
Running Clearance 0.025/0.105 mm (0.001/0.004 in.) 0.025/0.063mm (0.0010/0.0025 in.)
Bore I.D.
New
Max. Wear Limit
20.000/20.025 mm (0.7874/0.7884 in.)
20.038 mm (0.7889 in.)
20.000/20.025 mm (0.7874/0.7884 in.)
20.038 mm (0.7889 in.)
Bearing Surface O.D.
New
Max. Wear Limit
19.920/19.975 mm (0.7843/0.7864 in.)
19.914 mm (0.7840 in.)
19.962/19.975 mm (0.7859/0.7864 in.)
19.959 mm (0.7858 in.)
Connecting Rod
Connecting Rod-to-Crankpin
Running Clearance @ 21°C
(70°F)
New
Max. Wear Limit
0.043/0.073 mm (0.0017/0.0029 in.)
0.088 mm (0.0035 in.)
0.030/0.055 mm (0.0012/0.0022 in.)
0.070 mm (0.0028 in.)
Connecting Rod-to-Crankpin
Side Clearance
0.26/0.63 mm (0.0102/0.0248 in.) 0.26/0.63 mm (0.0102/0.0248 in.)
Connecting Rod-to-Piston Pin
Running Clearance @ 21°C
(70°F)
0.015/0.028 mm (0.0006/0.0011 in.) 0.015/0.028 mm (0.0006/0.0011 in.)
Piston Pin End I.D. @ 21°C
(70°F)
New
Max. Wear Limit
17.015/17.023 mm (0.6699/0.6702 in.)
17.036 mm (0.6707 in.)
17.015/17.023 mm (0.6699/0.6702 in.)
17.036 mm (0.6707 in.)
Crankcase
Governor Cross Shaft Bore
I.D. (Mechanical Governor)
New
Max. Wear Limit
8.025/8.075 mm (0.3159/0.3179 in.)
8.088 mm (0.3184 in.)
6 mm Shaft
New
Max. Wear Limit
8 mm Shaft
New
Max. Wear Limit
6.025/6.050 mm (0.2372/0.2382 in.)
6.063 mm (0.2387 in.)
8.025/8.075 mm (0.3159/0.3179 in.)
8.088 mm (0.3184 in.)

Specifications
1124 690 02 Rev. H KohlerEngines.com
CLEARANCE
SPECIFICATIONS3ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Crankshaft
End Play (free) 0.025/0.635 mm (0.001/0.025 in.) 0.070/0.590 mm (0.0028/0.0230 in.)
Bore (in crankcase)
New
Max. Wear Limit
40.972/40.997 mm (1.6131/1.6141 in.)
41.011 mm (1.6146 in.)
40.965/41.003 mm (1.6128/1.6143 in.)
41.016 mm (1.6148 in.)
Bore (in oil pan)
New 40.974/41.000 mm (1.6131/1.6141 in.) 40.987/40.974 mm (1.6136/1.6131 in.)
Crankshaft to Sleeve Bearing
(oil pan) Running Clearance
New 0.03/0.12 mm (0.001/0.005 in.) 0.03/0.09 mm (0.0012/0.0035 in.)
Crankshaft Bore (oil pan)-to-
Crankshaft Running Clearance
New 0.039/0.087 mm (0.0015/0.0034 in.) 0.039/0.074 mm (0.0015/0.0029 in.)
Flywheel End Main Bearing
Journal
O.D. - New
O.D. - Max. Wear Limit
Max. Taper Limit
Max. Out-of-Round Limit
40.913/40.935 mm (1.6107/1.6116 in.)
40.843 mm (1.608 in.)
0.022 mm (0.0009 in.)
0.025 mm (0.0010 in.)
40.913/40.935 mm (1.6107/1.6116 in.)
40.84 mm (1.608 in.)
0.022 mm (0.0009 in.)
0.025 mm (0.0010 in.)
Oil Pan End Main Bearing
Journal
O.D. - New
O.D. - Max. Wear Limit
Max. Taper
Max. Out-of-Round
40.913/40.935 mm (1.6107/1.6116 in.)
40.843 mm (1.608 in.)
0.022 mm (0.0009 in.)
0.025 mm (0.0010 in.)
40.913/40.935 mm (1.6107/1.6116 in.)
40.84 mm (1.608 in.)
0.022 mm (0.0009 in.)
0.025 mm (0.0010 in.)
Connecting Rod Journal
O.D. - New
O.D. - Max. Wear Limit
Max. Taper Limit
Max. Out-of-Round Limit
35.950/35.973 mm (1.4153/1.4163 in.)
35.941 mm (1.4150 in.)
0.018 mm (0.0007 in.)
0.025 mm (0.0010 in.)
35.955/35.973 mm (1.4156/1.4163 in.)
35.94 mm (1.415 in.)
0.018 mm (0.0007 in.)
0.025 mm (0.0010 in.)
Crankshaft T.I.R.
PTO End, Crank in Engine
Entire Crank, in V-Blocks
0.279 mm (0.0110 in.)
0.10 mm (0.0039 in.)
0.279 mm (0.0110 in.)
0.10 mm (0.0039 in.)
Cylinder Bore
Bore I.D.
New
80.000/80.025 mm
(3.1496/3.2689 in.)
83.006/83.031 mm
(3.2680/3.2689 in.) 82.988/83.013 mm (3.2672/3.2682 in.)
Max. Wear Limit 80.075 mm
(3.1526 in.)
83.081 mm
(3.2709 in.)
83.051 mm (3.2697 in.)
Max. Out-of-Round 0.120 mm (0.0047 in.) 0.12 mm (0.0047 in.)
Max. Taper 0.05 mm (0.0020 in.) 0.05 mm (0.0020 in.)
Cylinder Head
Max. Out-of-Flatness 0.076 mm (0.003 in.) 0.076 mm (0.003 in.)
3 Values are in Metric units. Values in parentheses are English equivalents.

Specifications
12 24 690 02 Rev. HKohlerEngines.com
CLEARANCE
SPECIFICATIONS3ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Governor
Governor Cross Shaft-to-
Crankcase Running Clearance
6 mm Shaft
8 mm Shaft
0.025/0.126 mm (0.0009/0.0049 in.)
0.013/0.075 mm (0.0005/0.0030 in.)
0.025/0.126 mm (0.0009/0.0049 in.)
Cross Shaft O.D.
New
Max. Wear Limit
6 mm Shaft
8 mm Shaft
7.949/8.000 mm (0.3129/0.3149 in.)
7.936 mm (0.3124 in.)
0.013/0.075 mm (0.0005/0.0030 in.)
0.025/0.126 mm (0.0009/0.0049 in.)
Governor Gear Shaft-to-
Governor Gear Running
Clearance
0.090/0.160 mm (0.0035/0.0063 in.) 0.015/0.140 mm (0.0006/0.0055 in.)
Gear Shaft O.D.
New
Max. Wear Limit
5.990/6.000 mm (0.2358/0.2362 in.)
5.977 mm (0.2353 in.)
5.990/6.000 mm (0.2358/0.2362 in.)
5.977 mm (0.2353 in.)
Ignition
Spark Plug Gap 0.76 mm (0.030 in.)
Ignition Module Air Gap 0.28/0.33 mm (0.011/0.013 in.)
Speed Sensor Air Gap 1.50 ± 0.25 mm (0.059 ± 0.010 in.)
Crankshaft Position Sensor Air
Gap
0.2-0.7 mm (0.008-0.027 in.)
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running
Clearance
0.006/0.017 mm (0.0002/0.0007 in.) 0.006/0.017 mm (0.0002/0.0007 in.)
Pin Bore I.D.
New
Max. Wear Limit
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
Pin O.D.
New
Max. Wear Limit
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
Top Compression Ring-to-
Groove Side Clearance
0.050/0.095 mm (0.0019/0.0037 in.) 0.025/0.048 mm (0.0010/0.0019 in.)
Middle Compression Ring-to-
Groove Side Clearance
0.030/0.075 mm (0.0012/0.00307 in.) 0.015/0.037 mm (0.0006/0.0015 in.)
Oil Control Ring-to-Groove
Side Clearance
0.010/0.011 mm (0.0004/0.0043 in.) 0.026/0.176 mm (0.0010/0.0070 in.)
Top and Middle Compression
Ring End Gap
New Bore 0.25/0.56 mm (0.010/0.022 in.) 0.25/0.56 mm (0.0100/0.0224 in.)
Used Bore (Max.) 0.80 mm (0.0315 in.) 0.94 mm (0.037 in.) 0.94 mm (0.037 in.)
Thrust Face O.D.779.943/79.961 mm
(3.1473/3.1480 in.)
82.949/82.967 mm
(3.2657/3.2664 in.)
82.949/82.967 mm
(3.2657/3.2664 in.)
Max. Wear Limit 79.816 mm
(3.1423 in.)
82.822 mm
(3.2606 in.)
82.822 mm (3.2606 in.)
Piston Thrust Face-to-Cylinder
Bore7Running Clearance
New 0.039/0.082 mm
(0.0015/0.0032 in.)
0.039/0.082 mm
(0.0015/0.0032 in.)
0.039/0.082 mm
(0.0015/0.0032 in.)
3 Values are in Metric units. Values in parentheses are English equivalents.
7Measure 6 mm (0.2362 in.) above bottom of piston skirt at right angles to piston pin.

Specifications
1324 690 02 Rev. H KohlerEngines.com
CLEARANCE
SPECIFICATIONS3ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Valves and Valve Lifters
Hydraulic Lifter to Crankcase
Running Clearance
0.011/0.048 mm (0.0004/0.0019 in.) 0.0241/0.0501 mm (0.0009/0.0020 in.)
Intake Valve Stem-to-Valve
Guide Running Clearance
0.040/0.078 mm (0.0016/0.0031 in.) 0.038/0.076 mm (0.0015/0.0030 in.)
Exhaust Valve Stem-to-Valve
Guide Running Clearance
0.052/0.090 mm (0.0020/0.0035 in.) 0.050/0.088 mm (0.0020/0.0035 in.)
Intake Valve Guide I.D.
New
Max. Wear Limit
7.040/7.060 mm (0.2772/0.2780 in.)
7.134 mm (0.2809 in.)
7.038/7.058 mm (0.2771/0.2779 in.)
7.134 mm (0.2809 in.)
Exhaust Valve Guide I.D.
New
Max. Wear Limit
7.040/7.060 mm (0.2772/0.2780 in.)
7.159 mm (0.2819 in.)
7.038/7.058 mm (0.2771/0.2779 in.)
7.159 mm (0.2819 in.)
Valve Guide Reamer Size
Standard
0.25 mm O.S.
7.050 mm (0.2776 in.)
7.300 mm (0.2874 in.)
7.048 mm (0.2775 in.)
7.298 mm (0.2873 in.)
Intake Valve Minimum Lift 8.07 mm (0.3177 in.)
Exhaust Valve Minimum Lift 8.07 mm (0.3177 in.)
Nominal Valve Seat Angle 45°
3 Values are in Metric units. Values in parentheses are English equivalents.

Specifications
14 24 690 02 Rev. HKohlerEngines.com
GENERAL TORQUE VALUES
Metric Fastener Torque Recommendations for Standard Applications
Property Class Noncritical
Fasteners
Into Aluminum
Size 4.8 5.8 8.8 10.9 12.9
Tightening Torque: N·m (in. lb.) ± 10%
M4 1.2 (11) 1.7 (15) 2.9 (26) 4.1 (36) 5.0 (44) 2.0 (18)
M5 2.5 (22) 3.2 (28) 5.8 (51) 8.1 (72) 9.7 (86) 4.0 (35)
M6 4.3 (38) 5.7 (50) 9.9 (88) 14.0 (124) 16.5 (146) 6.8 (60)
M8 10.5 (93) 13.6 (120) 24.4 (216) 33.9 (300) 40.7 (360) 17.0 (150)
Tightening Torque: N·m (ft. lb.) ± 10%
M10 21.7 (16) 27.1 (20) 47.5 (35) 66.4 (49) 81.4 (60) 33.9 (25)
M12 36.6 (27) 47.5 (35) 82.7 (61) 116.6 (86) 139.7 (103) 61.0 (45)
M14 58.3 (43) 76.4 (56) 131.5 (97) 184.4 (136) 219.7 (162) 94.9 (70)
Torque Conversions
N·m = in. lb. x 0.113 in. lb. = N·m x 8.85
N·m = ft. lb. x 1.356 ft. lb. = N·m x 0.737
English Fastener Torque Recommendations for Standard Applications
Bolts, Screws, Nuts and Fasteners Assembled Into Cast Iron or Steel Grade 2 or 5 Fasteners
Into Aluminum
Size Grade 2 Grade 5 Grade 8
Tightening Torque: N·m (in. lb.) ± 20%
8-32 2.3 (20) 2.8 (25) — 2.3 (20)
10-24 3.6 (32) 4.5 (40) — 3.6 (32)
10-32 3.6 (32) 4.5 (40) — —
1/4-20 7.9 (70) 13.0 (115) 18.7 (165) 7.9 (70)
1/4-28 9.6 (85) 15.8 (140) 22.6 (200) —
5/16-18 17.0 (150) 28.3 (250) 39.6 (350) 17.0 (150)
5/16-24 18.7 (165) 30.5 (270) — —
3/8-16 29.4 (260) — — —
3/8-24 33.9 (300) — — —
Tightening Torque: N·m (ft. lb.) ± 20%
5/16-24 — — 40.7 (30) —
3/8-16 — 47.5 (35) 67.8 (50) —
3/8-24 — 54.2 (40) 81.4 (60) —
7/16-14 47.5 (35) 74.6 (55) 108.5 (80) —
7/16-20 61.0 (45) 101.7 (75) 142.5 (105) —
1/2-13 67.8 (50) 108.5 (80) 155.9 (115) —
1/2-20 94.9 (70) 142.4 (105) 223.7 (165) —
9/16-12 101.7 (75) 169.5 (125) 237.3 (175) —
9/16-18 135.6 (100) 223.7 (165) 311.9 (230) —
5/8-11 149.5 (110) 244.1 (180) 352.6 (260) —
5/8-18 189.8 (140) 311.9 (230) 447.5 (330) —
3/4-10 199.3 (147) 332.2 (245) 474.6 (350) —
3/4-16 271.2 (200) 440.7 (325) 637.3 (470) —

Tools and Aids
1524 690 02 Rev. H KohlerEngines.com
Certain quality tools are designed to help you perform specific disassembly, repair, and reassembly procedures. By
using these tools, you can properly service engines easier, faster, and safer! In addition, you’ll increase your service
capabilities and customer satisfaction by decreasing engine downtime.
Here is a list of tools and their source.
SEPARATE TOOL SUPPLIERS
Kohler Tools
Contact your local Kohler source of
supply.
SE Tools
415 Howard St.
Lapeer, MI 48446
Phone [phone]
Toll Free 800-664-2981
Fax [phone]
Design Technology Inc.
768 Burr Oak Drive
Westmont, IL 60559
Phone [phone]
Fax [phone]
TOOLS
Description Source/Part No.
Alcohol Content Tester
For testing alcohol content (%) in reformulated/oxygenated fuels.
Kohler 25 455 11-S
Camshaft Endplay Plate
For checking camshaft endplay.
SE Tools KLR-82405
Camshaft Seal Protector (Aegis)
For protecting seal during camshaft installation.
SE Tools KLR-82417
Cylinder Leakdown Tester
For checking combustion retention and if cylinder, piston, rings, or valves are worn.
Individual component available:
Adapter 12 mm x 14 mm (Required for leakdown test on XT-6 engines)
Kohler 25 761 05-S
Design Technology Inc.
DTI-731-03
Dealer Tool Kit (Domestic)
Complete kit of Kohler required tools.
Components of 25 761 39-S
Ignition System Tester
Cylinder Leakdown Tester
Oil Pressure Test Kit
Rectifier-Regulator Tester (120 V AC/60Hz)
Kohler 25 761 39-S
Kohler 25 455 01-S
Kohler 25 761 05-S
Kohler 25 761 06-S
Kohler 25 761 20-S
Dealer Tool Kit (International)
Complete kit of Kohler required tools.
Components of 25 761 42-S
Ignition System Tester
Cylinder Leakdown Tester
Oil Pressure Test Kit
Rectifier-Regulator Tester (240 V AC/50Hz)
Kohler 25 761 42-S
Kohler 25 455 01-S
Kohler 25 761 05-S
Kohler 25 761 06-S
Kohler 25 761 41-S
Digital Vacuum/Pressure Tester
For checking crankcase vacuum.
Individual component available:
Rubber Adapter Plug
Design Technology Inc.
DTI-721-01
Design Technology Inc.
DTI-721-10
Electronic Fuel Injection (EFI) Diagnostic Software
For Laptop or Desktop PC.
Kohler 25 761 23-S
EFI Service Kit
For troubleshooting and setting up an EFI engine.
Components of 24 761 01-S
Fuel Pressure Tester
Noid Light
90° Adapter
In-line "T" Fitting
Code Plug, Red Wire
Code Plug, Blue Wire
Shrader Valve Adapter Hose
Kohler 24 761 01-S
Design Technology Inc.
DTI-019
DTI-021
DTI-023
DTI-035
DTI-027
DTI-029
DTI-037
Flywheel Holding Tool (CS)
For holding flywheel of CS series engines.
SE Tools KLR-82407
Flywheel Puller
For properly removing flywheel from engine.
SE Tools KLR-82408
Flywheel Strap Wrench
For holding flywheel during removal.
SE Tools KLR-82409

Tools and Aids
16 24 690 02 Rev. HKohlerEngines.com
TOOLS
Description Source/Part No.
Hydraulic Valve Lifter Tool
For removing and installing hydraulic lifters.
Kohler 25 761 38-S
Ignition System Tester
For testing output on all systems, including CD.
Kohler 25 455 01-S
Inductive Tachometer (Digital)
For checking operating speed (RPM) of an engine.
Design Technology Inc.
DTI-110
Offset Wrench (K and M Series)
For removing and reinstalling cylinder barrel retaining nuts.
Kohler 52 455 04-S
Oil Pressure Test Kit
For testing/verifying oil pressure on pressure lubricated engines.
Kohler 25 761 06-S
Radiator Tester
For pressure testing radiator and cap on Aegis liquid-cooled engines.
Kohler 25 455 10-S
Rectifier-Regulator Tester (120 volt current)
Rectifier-Regulator Tester (240 volt current)
For testing rectifier-regulators.
Components of 25 761 20-S and 25 761 41-S
CS-PRO Regulator Test Harness
Special Regulator Test Harness with Diode
Kohler 25 761 20-S
Kohler 25 761 41-S
Design Technology Inc.
DTI-031
DTI-033
Spark Advance Module (SAM) Tester
For testing SAM (ASAM and DSAM) on engines with SMART-SPARK™.
Kohler 25 761 40-S
Starter Servicing Kit (All Starters)
For removing and reinstalling drive retaining rings and brushes.
Individual component available:
Starter Brush Holding Tool (Solenoid Shift)
SE Tools KLR-82411
SE Tools KLR-82416
Triad/OHC Timing Tool Set
For holding cam gears and crankshaft in timed position while installing timing belt.
Kohler 28 761 01-S
Valve Guide Reamer (K and M Series)
For properly sizing valve guides after installation.
Design Technology Inc.
DTI-K828
Valve Guide Reamer O.S. (Command Series)
For reaming worn valve guides to accept replacement oversize valves. Can be used
in low-speed drill press or with handle below for hand reaming.
Kohler 25 455 12-S
Reamer Handle
For hand reaming using Kohler 25 455 12-S reamer.
Design Technology Inc.
DTI-K830
Valve Guide Service Kit (Courage, Aegis, Command, OHC)
For servicing worn valve guides.
SE Tools KLR-82415
AIDS
Description Source/Part No.
Camshaft Lubricant (Valspar ZZ613) Kohler 25 357 14-S
Dielectric Grease (GE/Novaguard G661) Kohler 25 357 11-S
Dielectric Grease Loctite®51360
Kohler Electric Starter Drive Lubricant (Inertia Drive) Kohler 52 357 01-S
Kohler Electric Starter Drive Lubricant (Solenoid Shift) Kohler 52 357 02-S
RTV Silicone Sealant
Loctite®5900®Heavy Body in 4 oz. aerosol dispenser.
Only oxime-based, oil resistant RTV sealants, such as those listed, are approved
for use. Loctite®Nos. 5900®or 5910®are recommended for best sealing
characteristics.
Kohler 25 597 07-S
Loctite®5910®
Loctite®Ultra Black 598™
Loctite®Ultra Blue 587™
Loctite®Ultra Copper 5920™
Spline Drive Lubricant Kohler 25 357 12-S

Tools and Aids
1724 690 02 Rev. H KohlerEngines.com
FLYWHEEL HOLDING TOOL ROCKER ARM/CRANKSHAFT TOOL
A flywheel holding tool can be made out of an old junk
flywheel ring gear and used in place of a strap wrench.
1. Using an abrasive cut-off wheel, cut out a six tooth
segment of ring gear as shown.
2. Grind off any burrs or sharp edges.
3. Invert segment and place it between ignition bosses
on crankcase so tool teeth engage flywheel ring
gear teeth. Bosses will lock tool and flywheel in
position for loosening, tightening, or removing with a
puller.
A spanner wrench to lift rocker arms or turn crankshaft
may be made out of an old junk connecting rod.
1. Find a used connecting rod from a 10 HP or larger
engine. Remove and discard rod cap.
2. Remove studs of a Posi-Lock rod or grind off
aligning steps of a Command rod, so joint surface is
flat.
3. Find a 1 in. long capscrew with correct thread size to
match threads in connecting rod.
4. Use a flat washer with correct I.D. to slip on
capscrew and approximately 1 in. O.D. Assemble
capscrew and washer to joint surface of rod.

Troubleshooting
18 24 690 02 Rev. HKohlerEngines.com
Engine Cranks But Will Not Start
●Battery connected backwards.
●Blown fuse.
●Carburetor solenoid malfunction.
●Choke not closing.
●Clogged fuel line or fuel filter.
●Diode in wiring harness failed in open circuit mode.
●DSAI or DSAM malfunction.
●Empty fuel tank.
●Faulty electronic control unit.
●Faulty ignition coil(s).
●Faulty spark plug(s).
●Fuel pump malfunction-vacuum hose clogged or
leaking.
●Fuel shut-off valve closed.
●Ignition module(s) faulty or improperly gapped.
●Insufficient voltage to electronic control unit.
●Interlock switch is engaged or faulty.
●Key switch or kill switch in OFF position.
●Low oil level.
●Quality of fuel (dirt, water, stale, mixture).
●SMART-SPARKTM malfunction.
●Spark plug lead(s) disconnected.
Engine Starts But Does Not Keep Running
●Faulty carburetor.
●Faulty cylinder head gasket.
●Faulty or misadjusted choke or throttle controls.
●Fuel pump malfunction-vacuum hose clogged or
leaking.
●Intake system leak.
●Loose wires or connections that intermittently ground
ignition kill circuit.
●Quality of fuel (dirt, water, stale, mixture).
●Restricted fuel tank cap vent.
Engine Starts Hard
●Clogged fuel line or fuel filter.
●Engine overheated.
●Faulty ACR mechanism.
●Faulty or misadjusted choke or throttle controls.
●Faulty spark plug(s).
●Flywheel key sheared.
●Fuel pump malfunction-vacuum hose clogged or
leaking.
●Interlock switch is engaged or faulty.
●Loose wires or connections that intermittently ground
ignition kill circuit.
●Low compression.
●Quality of fuel (dirt, water, stale, mixture).
●Weak spark.
TROUBLESHOOTING GUIDE
When troubles occur, be sure to check simple causes which, at first, may seem too obvious to be considered. For
example, a starting problem could be caused by an empty fuel tank.
Some general common causes of engine troubles are listed below and vary by engine specification. Use these to
locate causing factors.
Engine Will Not Crank
●Battery is discharged.
●Faulty electric starter or solenoid.
●Faulty key switch or ignition switch.
●Interlock switch is engaged or faulty.
●Loose wires or connections that intermittently ground
ignition kill circuit.
●Pawls not engaging in drive cup.
●Seized internal engine components.
Engine Runs But Misses
●Carburetor adjusted incorrectly.
●Engine overheated.
●Faulty spark plug(s).
●Ignition module(s) faulty or improperly gapped.
●Incorrect crankshaft position sensor air gap.
●Interlock switch is engaged or faulty.
●Loose wires or connections that intermittently ground
ignition kill circuit.
●Quality of fuel (dirt, water, stale, mixture).
●Spark plug lead(s) disconnected.
●Spark plug lead boot loose on plug.
●Spark plug lead loose.
Engine Will Not Idle
●Engine overheated.
●Faulty spark plug(s).
●Idle fuel adjusting needle(s) improperly set.
●Idle speed adjusting screw improperly set.
●Inadequate fuel supply.
●Low compression.
●Quality of fuel (dirt, water, stale, mixture).
●Restricted fuel tank cap vent.
Engine Overheats
●Cooling fan broken.
●Excessive engine load.
●Fan belt failed/off.
●Faulty carburetor.
●High crankcase oil level.
●Lean fuel mixture.
●Low cooling system fluid level.
●Low crankcase oil level.
●Radiator, and/or cooling system components clogged,
restricted, or leaking.
●Water pump belt failed/broken.
●Water pump malfunction.
Engine Knocks
●Excessive engine load.
●Hydraulic lifter malfunction.
●Incorrect oil viscosity/type.
●Internal wear or damage.
●Low crankcase oil level.
●Quality of fuel (dirt, water, stale, mixture).

19
Troubleshooting
24 690 02 Rev. H KohlerEngines.com
Engine Loses Power
●Dirty air cleaner element.
●Engine overheated.
●Excessive engine load.
●Restricted exhaust.
●Faulty spark plug(s).
●High crankcase oil level.
●Incorrect governor setting.
●Low battery.
●Low compression.
●Low crankcase oil level.
●Quality of fuel (dirt, water, stale, mixture).
Engine Uses Excessive Amount of Oil
●Loose or improperly torqued fasteners.
●Blown head gasket/overheated.
●Breather reed broken.
●Clogged, broken, or inoperative crankcase breather.
●Crankcase overfilled.
●Incorrect oil viscosity/type.
●Worn cylinder bore.
●Worn or broken piston rings.
●Worn valve stems/valve guides.
Oil Leaks from Oil Seals, Gaskets
●Breather reed broken.
●Clogged, broken, or inoperative crankcase breather.
●Loose or improperly torqued fasteners.
●Piston blow by, or leaky valves.
●Restricted exhaust.
EXTERNAL ENGINE INSPECTION
NOTE: It is good practice to drain oil at a location away
from workbench. Be sure to allow ample time for
complete drainage.
Before cleaning or disassembling engine, make a
thorough inspection of its external appearance and
condition. This inspection can give clues to what
might be found inside engines (and cause) when it is
disassembled.
●Check for buildup of dirt and debris on crankcase,
cooling fins, grass screen, and other external surfaces.
Dirt or debris on these areas can cause overheating.
●Check for obvious fuel and oil leaks, and damaged
components. Excessive oil leakage can indicate a
clogged or inoperative breather, worn or damaged
seals or gaskets, or loose fasteners.
●Check air cleaner cover and base for damage or
indications of improper fit and seal.
●Check air cleaner element. Look for holes, tears,
cracked or damaged sealing surfaces, or other
damage that could allow unfiltered air into engine. A
dirty or clogged element could indicate insufficient or
improper maintenance.
●Check carburetor throat for dirt. Dirt in throat is further
indication that air cleaner was not functioning properly.
●Check if oil level is within operating range on dipstick.
If it is above, sniff for gasoline odor.
●Check condition of oil. Drain oil into a container; it
should flow freely. Check for metal chips and other
foreign particles.
Sludge is a natural by-product of combustion; a small
accumulation is normal. Excessive sludge formation
could indicate over rich fuel settings, weak ignition,
overextended oil change interval or wrong weight or
type of oil was used.
CLEANING ENGINE
WARNING
Cleaning Solvents can cause severe injury or
death.
Use only in well ventilated areas away from
ignition sources.
Carburetor cleaners and solvents are extremely
flammable. Follow cleaner manufacturer’s warnings
and instructions on its proper and safe use. Never use
gasoline as a cleaning agent.
After inspecting external condition of engine, clean
engine thoroughly before disassembly. Clean individual
components as engine is disassembled. Only clean
parts can be accurately inspected and gauged for wear
or damage. There are many commercially available
cleaners that will quickly remove grease, oil, and grime
from engine parts. When such a cleaner is used, follow
manufacturer’s instructions and safety precautions
carefully.
Make sure all traces of cleaner are removed before
engine is reassembled and placed into operation. Even
small amounts of these cleaners can quickly break down
lubricating properties of engine oil.

Troubleshooting
20 24 690 02 Rev. HKohlerEngines.com
Condition Conclusion
Crankcase breather clogged or inoperative. NOTE: If breather is integral part of valve cover and
cannot be serviced separately, replace valve
cover and recheck pressure.
Disassemble breather, clean parts thoroughly, check
sealing surfaces for flatness, reassemble, and recheck
pressure.
Seals and/or gaskets leaking. Loose or improperly torque
fasteners.
Replace all worn or damaged seals and gaskets. Make
sure all fasteners are tightened securely. Use appropriate
torque valves and sequences when necessary.
Piston blow by or leaky valves (confirm by inspecting
components).
Recondition piston, rings, cylinder bore, valves and
valves guides.
Restricted exhaust. Check exhaust screen/spark arrestor (if equipped). Clean
or replace as needed. Repair or replace any other
damaged/restricted muffler or exhaust system parts.
CRANKCASE VACUUM TEST
WARNING
Carbon Monoxide can cause severe nausea,
fainting or death.
Avoid inhaling exhaust fumes.
Engine exhaust gases contain poisonous carbon
monoxide. Carbon monoxide is odorless, colorless,
and can cause death if inhaled.
To test crankcase vacuum with manometer:
1. Insert rubber stopper into oil fill hole. Be sure pinch
clamp is installed on hose and use tapered adapters
to connect hose between stopper and one
manometer tube. Leave other tube open to
atmosphere. Check that water level in manometer is
at 0 line. Make sure pinch clamp is closed.
2. Start engine and run no-load high speed.
3. Open clamp and note water level in tube.
Level in engine side should be a minimum of 10.2
cm (4 in.) above level in open side.
If level in engine side is less than specified (low/no
vacuum), or level in engine side is lower than level in
open side (pressure), check for conditions in table
below.
4. Close pinch clamp before stopping engine.
To test crankcase vacuum with vacuum/pressure gauge:
1. Remove dipstick or oil fill plug/cap.
2. Install adapter into oil fill//dipstick tube opening,
upside down over end of a small diameter dipstick
tube, or directly into engine if a tube is not used.
Insert barbed gauge fitting into hole in stopper.
3. Run engine and observe gauge reading.
Analog tester–needle movement to left of 0 is a
vacuum, and movement to right indicates a pressure.
Digital tester–depress test button on top of tester.
Crankcase vacuum should be a minimum of 10.2 cm
(4 in.) of water. If reading is below specification, or if
pressure is present, check table below for possible
causes and conclusions.
WARNING
Rotating Parts can cause severe injury.
Stay away while engine is in operation.
Keep hands, feet, hair, and clothing away from all
moving parts to prevent injury. Never operate engine
with covers, shrouds, or guards removed.
A partial vacuum should be present in crankcase when engine is operating. Pressure in crankcase (normally caused
by a clogged or improperly assembled breather) can cause oil to be forced out at oil seals, gaskets, or other available
spots.
Crankcase vacuum is best measured with either a water manometer or a vacuum gauge. Complete instructions are
provided in kits.