OKO High Torque GY6 Starter – 125/150cc Performance
OKO High Torque GY6 Starter – 125/150cc Performance
$101.95
Out of stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
DESCRIPTION: OKO High Torque Starter motor for 150cc and 125cc GY6 4-stroke QMJ152/157 QMI152/157 engines.This Starter Motor is recommended for any GY6 with a Big Bore Kit or Stroker Big Bore Kit.Bolt Hole Spacing: 78mmShaft Length: 18mmShaft Diameter: 11.5mmDiameter (near o-ring): 30mmNumber of Splines: 9GY6 QMI/QMJ 152/157, Various unlisted makes/models
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 125cc, 150cc, GY6, 4-Stroke
- Fitment Notes: Big Bore, Performance
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Is this for 125cc scooters?
A: This SKU is listed with 125cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 2.2 lbs |
|---|---|
| Dimensions | 7 × 4 × 4 in |
| Condition | New |
|---|
Ensure reliable ignition every time with the OKO High Torque GY6 Starter Motor. While standard starters often struggle to turn over modified engines, this reinforced unit is specifically engineered with high-strength internal windings to provide the extra cranking power needed for 125cc and 150cc GY6 engines equipped with Big Bore Kits or Stroker cranks.
By delivering higher rotational torque, this motor reduces strain on your battery and electrical system, preventing the "solenoid click" common in high-compression builds. It features a heavy-duty 9-spline shaft and weather-sealed housing for long-term durability in all riding conditions.
Performance Benefits:
- High-Torque Output: Designed specifically to overcome the increased resistance of high-compression Big Bore cylinders.
- Reliable Cold Starts: Provides faster cranking speeds for quicker, more consistent starts.
- Heavy-Duty Construction: Reinforced internal components to prevent overheating during extended cranking.
Technical Specifications:
- Spline Count: 9-Spline
- Bolt Hole Spacing: 78mm
- Shaft Length: 18mm
- Shaft Diameter: 11.5mm
- Mounting Diameter (at O-ring): 30mm
Detailed Model Fitment:
Universal fit for most 125cc–150cc 4-Stroke GY6 engines, including:
- Engine Codes: QMI152, QMJ152, QMI157, QMJ157
- Common Brands: Genuine (Buddy 125/150), KYMCO, SYM, Lance, Bintelli, and various Chinese-manufactured scooters/ATVs.
Tech Tip: If you have recently installed a Big Bore Kit and your starter sounds "sluggish," your stock motor is likely underpowered for the new compression ratio. This OKO High Torque unit is the direct solution. We also recommend inspecting your Starter Solenoid and battery cables for corrosion to ensure maximum current flow.
Note: This is a 2-bolt mounting style motor. Please verify your original starter uses the same 78mm bolt spacing before ordering.
