Kickstarter Gear Bushing for Scooters & Mopeds
ITEM# TT-14790
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Description
Kickstarter Gear Bushing for 50cc 4-Stroke Engines
This kickstarter gear bushing is built for 50cc 4-stroke QMB139 engines, the type you'll often see in a range of scooters and mopeds. It supports the starting system, so it matters for the engine to turn over correctly. It's one of the starter and relay parts you can swap out yourself at home, which helps the engine crank without hesitation. Fitting a new one is a sensible step if you hear clicking or whining when you try to engage the starter motor.
What This Part Does
The bushing sits between the starter motor and relay on one side and the engine on the other, so the start button can actually turn the engine over. A clicking noise with no engine movement can point to a faulty relay or a weak battery, whereas a whining noise tends to suggest the starter clutch is at fault.
Specifications
- Inner Diameter: 14mm
- Outer Diameter: 18mm
- Fits: 50cc 4-stroke QMB139 engines, various unlisted makes and models
Fitment
Fits:
- 50cc 4-stroke QMB139 engine
How to choose: Check that the bushing suits your engine's kickstart gear, with a 14mm inner diameter and an 18mm outer diameter.
Shop more: Scooter Starters & Relays · Scooter Transmission & Final Drive · Scooter Parts
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