Centrifugal Clutch 12 Teeth Bore Size : 3/4″ (0.75inch / 19.05mm). Please confirm the size of the product and whether it fits your Minibike before purchasing. Fit for: 35 Chain 12T for Go Kart Mini Bike Engine,Motors No More Than 200 cc Only. 3/16″ Key Way. Fit 2 – 6.5 HP Small Engines Parts Honda GC160, GC190, GX120, GX140, GX160, GX200 Engagement Speed (RPM): 2,300 Perfect for Go Kart, Minibike, Fun Kart.Go Kart Minibike Belt Direct Drive Fun Kart Centrifugal Clutch 3 4 Bore 12 Tooth #35 Chain Fit Briggs & Stratton 2 – 6.5 HP with 3/4″ Shaft 212 212cc Predator Engine Clutch and Any Other Go Cart Motor Auto Engines with 3/4 Crank Shaft and 3/16″ Key Way Set screws and chain NOT included. Mounts onto crankshaft using bolt and washer on the end of the crankshaft.( Clutch does not need set screws as long as the end of the crankshaft is threaded to accept a bolt. Most go kart clutches are held onto the shaft with a bolt and larger washer. Extra washers if needed are used on the crankshaft to space clutch. )
Go Kart Minibike Centrifugal Clutch 3/4″ Bore #35 Chain 12T Where do you oil the clutch Behind the snap ring, next to the sprocket teeth at the end of the clutch. There’s an internal bronze bushing behind the snap ring that requires lubrication and it’s up to you to put it there each time. It’s a good idea to oil the chain at the same time. If the chain gets kinky from lack of oil it should be replaced before it damages the clutch sprocket. A new chain is cheaper than a new clutch.
Changing the size of the tires: Putting on tires that are larger than what came with the kart will result in clutch problems.No larger than 15″ tall.
Gear ratio: The sprocket on the engine and the one on the rear axle should have a ratio close to 1:6.
Restrictions: Don’t try and reduce a go kart speed by limiting the travel of the gas pedal or by putting a restrictor in the carburetor to limit full rpm.
Don’t put oil inside the clutch holes: The holes on the drum are to let the hot air out of the clutch. DO NOT SQUIRT OIL IN THESE HOLES. When oil gets in the drum portion of the clutch it will cause excessive slippage, which means undue heat will be generated.