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OKO High Torque QMB139 Starter Motor
- Bolt Hole Spacing: 70mm
- Splined Shaft Length: 12mm
- Splined Shaft Diameter: 7.5mm
- Diameter (near o-ring): 21mm
- Number of Splines: 10
OKO High Torque Starter motor for 50cc to 80cc QMB139 4-stroke engines.
This Starter Motor is recommended for any QMB with a Big Bore Kit or Stroker Big Bore Kit.
Please Note: The starter cable connection is slightly different from stock QMB139 starters. You will either need to drill out the hole on the spade connector or modify your starter wire by adding a spade connector.