Baltmotors NC250 User manual

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User’s Safety Statement
Dear customer, please don’t ride the motorcycle before you are not reading this handbook or unknown this
motorcycle performance, also don’t borrow to anybody who don’t know how to use.
Driver’s attention：
1、Before driving
①Check motorcycle condition careful,don’t ride if get ill; ②Don’t ride when feel sick or take medicine；③Strickly prohibit drunk driving and
driving without linence; ④Be sure to wear the protective equipment ；
⑥The driver must be adults over the age 18。
2、In the drive
①This vehicle not belongs to on-road type, please don’t ride on the street；
②Keep a good mood and psychological qualities, pay all attentionon driving；③Reducethe rapid accelerationand suddenly brake times
to prevent the emergencies；
③Should slowly when driving detour road to prevent skid(Prohibit use the front brake,otherwise the vehile will easy to fly out) ；
⑥When rainy orsnowin, the ground friction is small and brake distance will be longer,thevehicleshould be slowly and brake operationshould
be soft to avoid locking fall down ；
⑧行车中感觉摩托车有异常时，一定要停车检查。
3、停车后
①要检查灯光、电器有无异常； ②发动机等有无渗油或异常声音； ③关闭电路，锁好车； ④远离火源，不要靠近摩托车点火吸烟。

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The company reserves it’s rights to make any changes due to product updates。
Introduction
1、Resume………………………………………………………………………………………P 2~P 7
2、Maintenance…………………………………………………………………………………P8~P33
3、Elertrical schematics………………………………………………………………P34
4、Product warranty description…………………………………………………………P35
1、Resume
Maintenance rules……………1-3 Front wheel / Suspension / Handle description …………1-6
Brief…………………………1-3 Rear wheel / Suspensiondescription…………………1-7
Lubrication system description …1-5 Battery / Charging system description……………1-7
Fuel system description……………1-6 Ignition system description ……………………1-7

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Cooling system description………1-6
Maintenance Regulation
1. Must to use this company or this company recommend spare parts or lubricants；Not to suits to this company designing
parts or lubricants ,may damage the vehicle .
2. Should use the metric tool, bolt, nuts and screws to maintain vehicle, it’s not can be interchanged with British system.
3. If rebuild the vehicle should change the new gaskets, O-rings, split pins and retainer rings.
4. When tighten bolts and nuts,first starting with the big diameter or from the inner bolts. And then increase the number of
steps by diagonal unless specified special order to tighten to the specified torque.
5. After decomposition,should clean the spare parts in the cleaner solvent; lubricating every smooth surface before
assembly .
6. After assembly,check all spare parts installation and operation, if all these are right.
7. Dredge all the cables and wiring harness.
8. Please go to our authorized dealers for repair, unless the owners have special tools and maintenance of data and is a
qualified mechanic.
Brief (Technical specification) : Motorcycle running-in period is 1000km, then at the range of 1000Km, the speed
should not exceed 50km/h.
Items
Description
Measurement
Length
2180mm

4
width
Height
Wheelbase
Seat height
Minimum ground clearance
Whole weight
830mm
1280mm
1486mm
960mm
310mm
135kg
Chassis
Material
Front wheel size
Rear wheel size
Alloy
80/100-21’’
110/100-18’’ or 110/90-19’’
Engine
Type
Maximum power / Rotate speed
Maxmum torque / Rotate speed
Idle speed
Minimum fuel consumption
Bore×Stroke
Displacement
Compression ratio
Intake type
ZS177（The type number remarks upper the left axle
box ）
Single cylinder, 4-stroke, water-cooling
19.5 kw / 9000 r / min)
23 N.m /(7000 r / min)
1500±100 r/min
≤367g/kw.h
77×53.6mm
249.6 ml
11.5:1
SOHC、4 valves

5
Lubricating system and pump type
Ignition advance angle
Valve clearance（cold）
Spark plug type
Measurement
Net weight
Transmission type
Pressure splash
BTDC 12°[3000r/min]
Intake valve：0.03 mm
Exhaust valve：0.05mm；
CHAMR10N RG6YC
370mm×315mm×415 mm
30 kg
Chain
Reduction ratio
Clutch type
Gearshift type
Manual、Wet muiti-plate
Five gears international type, two levels of transmission 6
gears shift
Primaryr reduction ratio：2.91
First gear：2.58
Second gear：1.8
Third gear：1.33
Fouth gear：1.1
Fifth gear：0.96
Sixth gear：0.88
Electrical
equipment
Ignition type
Starting system
DCDI
Electric & Kick

6
Starting performance
≤15 s
Lubrication system
Items
Engine lubricat oil capacity 1600ml Oil brand：APL SJ SAE10W-40
Fuel system
Items
Description
Oil brand
97#
Capacity
8.0L
Tank capacity
1.4L
Cooling system
Items
Description
Cooling liquid
capacity
Replacement
1.11L
Disassembly
1.20L
Recommended antifreeze
Coolant or the same mass of ethylene glycol antifreeze

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Standard coolant concentration
Mixed 1:1 with distilled water
Front wheel /Suspension / Operate specification
Items
Standard
Maintenance limited
Cooling wheel pression
32/2.25（Psi/Bar）
-
Max load
455/206（Lbs/Kgs）
-
Rear wheel/Suspension specification
Items
Standard
Maintenanace limited
Cooling wheel pression
32/2.25（Psi/Bar）
-
Max load
617/280（Lbs/Kgs）
-
Drive chain
112 joints
-
Battery/Charging system
Items
Description
Battery
Capacity
12V-6Ah
Current consumption
Max：0.1mA

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Voltage（200/680F）
Fully charged
13.0-13.2V
Ignition system
Items
Description
Spark plug
Standard
CHAMPION
RG 6YC
2. Maintenance
First: Maintance date………………………………2-9 Fourteenth: Engine oil/oil filter………2-23
Second: Technique maintenace……………………2-10 Fifteenth: Engineidle speed…………2-26
Third: Racing technique maintenance………………2-12 Sixteenth: Drive chain………………2-27
Fourth: Frequently changed additional issues……2-14 Seventeenth: Drive chain slider………2-27
Fifth: Oil tube…………………………………………2-15 Eighteenth: Drive chain rotor……………2-28
Sixth: Oil filter screen ………………………………2-16 Ninteenth: Active/driven sprocket………2-28
Seventh: Accelerator operation…………………………2-17 Twentieth：Brake fluid…………………2-29
Eighth: Hot start…………………………………………2-17 Twenty-first: Brake block wear…………2-30
Nineth: Air filter…………………………………………2-18 Twenty-second: Brake system…………2-30

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Tenth: Spark plug………………………2-19 Twenty-third: Rocker arm/Vibration coupling……2-31
Eleventh: Radiator coolant……………2-19 Twenty-fourth: Wheels/tires………………2-32
Twelfth: Cooling system…………………2-20 Twenty-fifth: Front tube bearing……………2-33
Thirteen: Valve clearance/Decompression device system…2-21
First: Maintenance date
Summary
1、Before maintenance put motorcycle on the level ground .
2、Ensure the maintenance of a well-ventilated environment .
3、Prepare the work table(under the engine) and tools.
4、If exhaust system not cooling enough before to disaccemble spare parts or maintenance ,it will make a serious scald.
5、Must replace the exhaust pipe gasket when take off exhaust pipe from Engine .
6、Must check the exhaust system for leak after installition is complete .

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Second: Technique maintenance
I：Check and clean,adjust,if necessary lubricate or replace C:Clean R：Replace A:Adjust L:Lubricate
Frequency
Items
No matter which one
First
time to
maintain
Trip distance or Date
first
Minutes
100
600
1200
1800
2400
received
Kilometers
150
1000
2000
3000
4000
Note
Month
1
6
12
18
24
*
Oil-way
I
I
* *
Fule filter screen
C
C

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*
Accelerator
I
I
Air filter
（Note 1）
C
C
C
C
Crankcase
breather pipe
（Note 2）
I
I
I
I
Spark plug
I
I
I
I
*
Air valve
I
I
I
I
I
Machine oil
R
R
R
R
R
Oil filter
R
R
R
R
R
*
Decompression
device
I
I
I
I
I
*
Idling
I
I
I
I
I
Coolant fluid
（Note 3）
I
R
*
Cooling system
I
I
I
I
I
*
Secondary air
system
（Note2）
I
I
Transmission oil
R
R
R
R
R
Drive chain
（Note 1）
I，L
I，L：Per 500km Or 3 months
Chain slider
（Note 1）
I
I，L：Per 500km Or 3 months
Brake fluid
（Note 3）
I
I
I
I

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Brake block
I
I
I
I
Brake system
I
I
I
I
I
*
Lights
I
I
Clutch system
I
I
I
I
I
Side stay
I
I
*
F/R damping
I
I
*
Nuts 、Bolts 、
Fasteners
I
I
I
* *
Wheels/tires
I
I
I
I
I
* *
Front tube bearing
I
I
I
9. * Please go to our authorized dealers for repair, unless the owners have special tools and maintenance of data and is a
qualified mechanic.
* *To be safe,we recommend all of these items should go to our authorized dealers for repair .
Remarks：（1）、 If driving on the wet and dusty road ,should maintain frequently .
（2）、 Repalce per 2 years with technique skill.
Third: Racing technique maintenance
Check all items before racing .
I:Check and clean,adjust,if necessary lubricate or replace C:Clean R：Replace A:Adjust L:Lubricate

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Items Frequency
Notes
About 2.5
hours
Abouy 7.5
hours
About 15.0
hours
About 22.5
hours
About 30
hours
Accelarator
I
Choke valve
I
Air filter
(Note 1)
C
Crankcase breather
pipe
I
Spark plug
I
Coolant fluid
(Note 2)
I
Valve/Decompression
device
(Note 4)
I
Machine oil
(Note 3)
I
R
Oil filter
(Note 3)
R
Idling
I
Piston and piston rings
R
Piston pin
R
Cooling system
I
Drive chain
I,L
R
Chain slider
I

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Drive chain rotor
I
Active/driven sprocket
I
Brake fluid
(Note 2)
I
Brake block
I
Brake system
I
Clutch system
(Note 5)
I
Control cable
I,L
Exhaust pipe/Silencer
I
F/R Damping
I
Rear fork/ Rocker arm
L
Front shock absorber
oil
(Note 3)
R
Nuts、Bolts、Fastener
I
Wheels/Tires
I
Front tube bearing
I
This maintenance schedule is base on the driving average condition.The vehicle must be checked according to this
maintenance list .
Remarks：1、First time to riding in the dirty environment should clean the vehicle .
2、Should check the vehicle after the first time no-race ride .

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3、If replace the clutch plate and baffle ,should replace the transmission oil .
Fourth: Additional items should be changed frequently
Engine
Items
Reasons
Remarks
Cylinder head gasket
Clutch pressure plate
Head gasket
Right side cover sealing
Leakage of a crush
Abrasion or rust
Leakage
Damage
As long as disassemble to be
replaced
As long as disassemble to be
replaced
As long as disassemble to be
replaced
Chassis
Items
Reason
Remarks
F/R wheels
F/R Brake plate
Assembly bolts on the frame
Chain sliding plate
Side guard plate
Abrasion
Abrasion
Strain or abrasion
Abrasion or damage
Damage
Minimum tread height:8mm
Minimum thickness :1mm

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Front covering parts
Front and rear fender
Clutch handle/stay
Brake handle
Kick start bar
Handlebar
The throttle handle
Grip
Shift lever
Brake pedal
Chain adjuster/bolts
Air filter
Damage
Damage
Excessive gap or damage
Excessive gap or damage
Excessive gap or damage
Deformation or fissure
Damage
Damage
Damage
Damage
Damage
Damage
Notes：
·These spare parts and maintenance list are base on the average riding environment
·Vehicle must be checked strictly according to the user manual .
Fifth: Oil tuble
Check the oil tube ageing,if necessary should replace it, see Figure 5-1
Figure 5-1

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Sixth: Oil filter mesh
Disassemble fuel tank: first drop the oil into container, remove the tubing,bolts and oil switch, then clean the oil filter ,ensure
the O-ring in a good condition and install it to oil switch ,re-install in reverse order with the disassemble, install the fuel tank
(Make sure there is no leakage after installation). See Figure 6-1, Figure 6-2
图5
Figure 6-1
Figure 6-2

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Seventh: Accelerator operation
Check the throttle grip, it should be rotate smoothly and freely return; Check the throttle cable, if it’s ageing or damage should
be replaced; If throttle operate not smoothly should lubricate the cable;The free rotation distance of adjust throttle grip is in
3-5mm.
Eighth: Cold start
Check the cold start grip, if necessary lubricate it ; check the cables,if these are damaged, replaced ;Ensure the cold start
grip free travel in 2-3mm( See the Figure 8-1),tightening lock nuts and install the dust cover ( See the Figure 8-2 )

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Nineth: Air Cleaner
Open the air cleaner side cover, remove the retaining bolts.Remove the
filter element from bracket, put it into clean cleaner to wash, and then get it
from that cleaner to the hot soup-sudz to wash; Clean the air filter inner room
to ensure there is no mess; When the air cleaner and filter are completely dry,
put filter to the special filter oil, use hand rubbing the filter ensure the oil can be
entered, squeeze the excess oil.Reinstall the air cleaner.
Notes：If the air cleaner assembly install incorrectness, the dirt or dust
will enter the engine causing the piston rings and cylinder early period abrasion.
Figure 8-1
Figure 8-2