Engine Model: JT152FM (H)Cylinder Bore*Range: 52.4×49.5Displacement: 108m1 (107m1)Compression Ratio: 8.8: 1Primary Deceleration Ratio: (Auto) 4.058Wheel Gear Ratio I: 3. 273Wheel Gear Ratio II: 1. 938Wheel Gear Ratio : 1. 350Wheel Gear Contrast Ratio IV: 1.043Fire Point System: Variable-horizontal CDIFire Plug Model : 1136 or 1137Fire Plug Gap : 0.6m-0.7mLubricant Grade: 15W/40-DE 4-stroke Gasoline Engine OilFuel Grade: 90 Gasoline RQ-90Lubricating Oil Capacity: 800mlMinimum Fuel Consumption Rate: ≤365g/kw.hStarting Performance: 15SIntake: On at 20°C Prior to the Starting Point, Off at 48°C after the Starting Point.Exhaust: On at 48°C Up, off at 20°C Down.Clearance: 0.05mm (Cold)Clutch Type: Wet Multi-Channel Normally Open Wet Multi-Channel Normally Closed
New 4-stroke Cyclic Electric and Kick Start Gasoline Engine Oil Motor
The running in of the engine is very important, and the new engine must not be fully opened within 350 km/h. Each gear can only be driven at 80% of the speed in that gear, and should be changed at any time. If the engine is not properly broken in, it will break down. After 350 km of operation, the engine should be repaired to compensate for minor wear and tear during the break-in period to ensure good engine performance.
Adjustment of Idle Speed
(1) Twist the net idle adjustment screw clockwise to ensure safety, then reverse it by 15/8 turns.
(2) Heat the engine to operating temperature, then connect the tachometer and adjust the idle speed to 1500 r/min using the oil and plunger adjustment screw.
(3) Rotate the idle adjustment screw again to increase the stable engine speed to the maximum, and then adjust the plunger adjustment screw to the specified 1500r/min.
The Use of Electric Starting:
It is advisable to start with electric power in neutral position, or in any gear, but the clutch must be disengaged (control the clutch lever tightly). If the battery power is depleted, simply drive a few kilometers to charge it and it can be used.
Application of Single Automatic Clutch
To stop or emergency stop the vehicle, it is necessary to slow down (use a switch to loosen the oil) and press the gear change pedal all the way down, without allowing it to return to its original position and then press the manual springboard, in order to stop the vehicle quickly, extend the service life of the clutch, and ensure personal safety.
Engine Model: JT152FM (H)
Cylinder Bore*Range: 52.4×49.5
Displacement: 108m1 (107m1)
Compression Ratio: 8.8: 1
Primary Deceleration Ratio: (Auto) 4.058
Wheel Gear Ratio I: 3. 273
Wheel Gear Ratio II: 1. 938
Wheel Gear Ratio : 1. 350
Wheel Gear Contrast Ratio IV: 1.043
Fire Point System: Variable-horizontal CDI
Fire Plug Model : 1136 or 1137
Fire Plug Gap : 0.6m-0.7m
Lubricant Grade: 15W/40-DE 4-stroke Gasoline Engine Oil
Fuel Grade: 90 Gasoline RQ-90
Lubricating Oil Capacity: 800ml
Minimum Fuel Consumption Rate: ≤365g/kw.h
Starting Performance: 15S
Intake: On at 20°C Prior to the Starting Point, Off at 48°C after the Starting Point.
Exhaust: On at 48°C Up, off at 20°C Down.
Clearance: 0.05mm (Cold)
Clutch Type: Wet Multi-Channel Normally Open Wet Multi-Channel Normally Closed
Starting Method: Electric and Kick Start
Transmission Type: 4-speed Cyclic or 4-speed Non-cyclic
Idle Speed: 1500r/min
Frequently Occurring Faults and Troubleshooting
1. Trouble Phenomenon: Hard to Start
Cause Analysis: Improper Gap in Fire Plugs
Fire Plug Burns
Damage to Parts of the Fire Ignition System
Fuel Circuit Blockage
Improper Concentration of Mixed Substances
Fire Extinguisher Blockage
Exclusion Formula: Adjust the Room Temperature
Replace the Flower Plug
Replacing the Pointer (CD)
Dredging Oil Pipelines
Adjusting the Concentration of Mixed Substances
Eliminating Carbon Deposits
2. Fault Phenomenon: Engine Overheating
Cause Analysis: Improper Concentration of Mixed Substances
Fire Extinguisher Blockage
Exclusion Formula: Adjust the Concentration of Mixed Substances
Clearing the Fire Extinguisher
3. Fault Phenomenon: The engine is prone to stalling during acceleration or idling
Cause Analysis: Poor Flower Plug
Poor Filtration Performance of Carburetors during Acceleration
Unstable Idle Speed of Carburetor
Exclusion Formula: Replacement
Adjust the Mixer, Eliminate and Adjust the Idle Oil Needle
4. Fault Phenomenon: There is a knocking sound from the engine
Cause Analysis: Wear of Pistons, Piston Rings, and Hydraulic Cylinders
Broken or Stuck Piston Rings
Excessive Accumulation of Dust in the Cylinder
Exclusion Formula: Replacement
Replace or Eliminate Carbon Deposits
Eliminating Carbon Deposits
PaymentDelivery detailsTerms of salesAbout usContact usPaymentWe accept payment 。Fees such as import duties, taxes are not included in the item price or shipping costs. These charges are the buyer's responsibility.Delivery detailsShipping:2-9 working days to: USATerms of sales
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About usYour satisfaction is our ultimate goal. We work hard to earn your trust and future business. Our certified technicians have tested each item before shipping. The unit comes with 1 year limited warranty on all manufacturing defects.a) If you receive a defective item, you may return it or ask for a discount. Please contact us within 14 days after you receive the package.b) What you returned must be intact and in its original packaging as re? u. Customer is responsible for shipping costs of the returned item.c) We will cover the cost of shipping back t with the shipping rate indicated in the registration page. We will send you a new unit or refund the full payment you paid.Thank you.Contact usBusiness Hour Business Hour: Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.Please contact us with message.Please feel free to contact us if you have any questions. Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.Please contact us with message.Please feel free to contact us if you have any questions.
On Aug 25, 2026 at 19:39:48 PDT, seller added the following information:
