RA GP125i User manual
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Dear users:
Thank you for choosing your RoyalAlloyGP125I/150I/180Iscooter. In order to make you drive more safe and
comfortable, please read carefully and fully understand the contents of this manual.
This manual explains the main information, such as the structure, characteristic, basic inspection and maintenance, and
thestructure and maintenance of EFI etc for your scooter, so that you can carry out regular maintenance operations on
your vehicle. As it is not possible to include complete mechanical notions in this manual, users should have basic
mechanical knowledge. Without this knowledge, repairing or checking the vehicle may be inefficient or even dangerous.
So you should be extremely cautious so as not to damage components or injure individuals. If you can't complete the
repair and maintenance independently, please contact the local dealer.
Company reserves the right to make any changes due to the renewal of the product. If there is any change, no notice will
be made, please refer to the real scooters. The main technical modifications and changes in repair procedures are
communicated to all Sales Outlets and its International Subsidiaries. These changes will be introduced in the subsequent
editions of the manual.
The important information below will appear in this manual:
CAUTIONRefers to specific procedures to carry out for preventing damages to the vehicle.
WARNINGRefers to specific procedures to carry out to prevent injuries to the repairer.
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Contents
CHARACTERISTICS.............................................................................................................................................................4
TOOLING..............................................................................................................................................................................17
MAINTENANCE.................................................................................................................................................................23
ELECTRICAL SYSTEM...................................................................................................................................................... 50
REMOVE ENGINE FROM VEHICLE................................................................................................................................58
ENGINE DISASSEMBLY....................................................................................................................................................80
EFI SYSTEM..................................................................................................................................................................1177
BRAKING SYSTEM.......................................................................................................................................................... 141
FINAL INSPECTION......................................................................................................................................................... 162
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Maintenance rules
1. Use the spareparts and lubricants of our company or recommended by our company, the spare parts and lubricants
that are not in conformity with the design specifications of our company may damage the motorcycle.
Recommended brand model: MOTOREX scooter semi synthetic 4 strokeSAE 10W/40-SJ.
2. Replace spring washers, washers, O-rings (OR), cotter pins and circlips with new parts when reassembling
components.
3. When tightening nuts and screws, start either from the components with the largest diameter or from the innermost
components, proceeding diagonally. Tighten nuts and screws in successive steps to the specified torque.
4. After decomposition, clean parts in clean solvents. Lubricate any smooth surface before assembly.
5. After reassembling, check all parts to install and operate correctly.
6. Dredge all cables and harnesses.
7. Please go to our authorized dealership for repair, unless the owner has special tools and maintenance data and is a
qualified mechanist.
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Vehicle identification
Chassis number is stamped on the frame right side frame rail.
Engine number is stamped on the rear of the crankcase assembly.
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CAUTION These numbers are necessary for vehicle registration identification, and changing the identification
number may be severely punished by the law, especially if the revision of the chassis number will be invalid even if
the warranty is invalid
Specifications:
Vehicle data
Engine data
Model
GP125i
GP150i
GP180i
Engine model
1P52QMI (125)
1P57QMJ (150)
1P61QMK (180)
Overall size (mm)
1845×670×1115
Engine idle speed
1800±100rpm
Wheel base (mm)
1390
Engine type
1 cylinder, S, horizontal
Saddle height (mm)
780
Bore × stroke (mm)
52.4*57.8 (125)
57.4*57.8 (150)
61*57.8 (180)
Minimum ground
clearance (mm)
145
Total displacement
(mL)
125 (125)
150 (150)
169 （180）
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Net weight (kg)
142
Compression ration
10.5:1 (125)
10.4:1 (150)
10.2:1 (180)
Max loading weight
(kg)
210
Max net power, rate
(kW/r/min)
7.1KW/7500rpm(125)
8.3KW/8000rpm(150)
8.8KW/7500rpm (180)
Fuel tank capacity (L)
10.5
Max net torque, rate
(Nm/r/min)
9.2Nm/7000rpm(125)
11Nm/6000rpm(150)
12.5Nm/5500rpm(180)
Front tyre size/ Inflating
pressure
110/70-12 /32 PSI
Start mode
Electric
Rear tyre size/ Inflating
pressure
120/70-12 /34 PSI
Ignition mode
EFI(DELPHI)
Front brake
Disc brake
Valve clearance(mm)
Intake:0.12
Exhaust:0.12
Rear brake
Disc brake
Lubrication type
Pressure/splash
Battery capacity
12V 9Ah
Spark plug
NGK CR7HSA
9
Horn
90-100dB(A)
Clutch
Automatic centrifugal dry
clutch
Variator
Continuous, automatic
Transmission system description
Item
Standard
Transmission
CVT with V belt + final reduction unit
Gear ratio
2.363～0.765（125/150/180）
Gear ratio
45/13*41/15=9.46（125/150/180）
Engine wheel total ratio
7.24～22.354（125/150/180）
Lubrication system description
Item
Standard
Engine oil 1000ml
Brand name:
SAE10W-40-SJ
Change Engine oil
850ml
Change Engine oil and engine
oil filter
950ml
Dismantle engine, inject oil
1000m l
This manual suits for next models
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Table of contents
