Feature

●Centrifugal Clutch 3/4” Bore 12 Tooth for 35 Chain, Common clutch for 2-6.5 HP engines 2300 RPM
●Our go-kart clutch is made of high-grade steel, heavy-duty and long lasting. It can withstand the strain and heat caused by friction, once the clutch engages
●Perfect for Go Kart, Minibike and Fun Kart. Fits Honda GX160, GX200, GX 140, GX120, GC160, GC190, Harbor Freight Greyhound 196cc, Harbor Freight Predator 212cc, briggs and Stratton Tecumseh engines and 2-6.5 HP with 3/4” shaft
●Also fits any other engines with 3/4 crank shaft and 3/16” key way, most 5.5 HP clones, 6.5 HP clones and 4-7HP motors in all brands
●Go cart clutch kit includes 1 x 3/4 12 Teeth Clutch, 2 x Chain Connecting Links, 1 x Clutch Bolt and Washer Kit, 1 x Screws Set, 1 x Allen Wrench. (The chain is not included. )Saves You the hassle of having to hunt down all the right parts at your local hardware store

[3  & 4   Bore 10T]




[3  & 4   Bore 12T]





Description

go kart clutch 3/4go kart clutch 3/4

Our go-kart clutch is made of high-grade steel, heavy-duty and long-lasting. It can withstand the strain and heat caused by friction, once the clutch engages.

Go-kart clutches work best on these types of go-karts:

1. Racing Go-Kart

2. Homemade Go-Karts

centrifugal clutchcentrifugal clutch

Specification:

  • 12 tooth 3/4" bore, For # 35 Chain

Bolt Size: 5/16-24, 3/4" Long

Easy to install:

Mounts onto crankshaft using bolt and washer on the end of the crankshaft.

Package includes：1 x 3/4 12 Teeth Clutch,, 2 x Chain Connecting Links, 1 x Clutch Bolt and Washer Kit, 1 x Screws Set, 1 x Allen Wrench.

go kart clutch 3/4 borego kart clutch 3/4 bore

Compatibility:

  • This Clutch Will Fit 2 - 6.5 HP Engines Honda GC160, GC190, GX120, GX140, GX160, GX200
  • Also will fit Briggs & Stratton and 2 - 6.5 HP With 3/4" Shaft
  • Also Will Fit Tecumseh Engines 2 - 6.5 HP With 3/4" Shaft
  • And Any Other Engines With 3/4 Crank Shaft and 3/16" Key Way

go kart clutchgo kart clutch

NOTE:

  • The Centrifugal Clutch 3/4" needs to be oiled before use.
  • Before ordering please check your crankshaft size.
  • Can only be used on Go Kart for children under 10 years old and at speeds below 30 yards.

Oiling your clutch the right way will increase its lifetime significantly.

10 tooth clutch10 tooth clutch

10 or 12 tooth clutch?

It depends on the purpose of your Go-kart, the number of teeth in your axle sprocket, and the tire size. If you have big tires (more than 13″) in your go-kart then it will be better to use a 10T clutch, if your go-kart is built for racing purposes then you can choose the 12T.

go kart clutchgo kart clutch

Go-kart’s clutches use weights that are mounted internally inside the clutch. These weights fling out and press against the clutch bell housing when reaching a certain rpm (typically 1800-2000 rpm). If the engine does not move through this rpm and cannot fully lock, the clutch will smoke.

A smoking clutch can be due to any of the reasons listed below.

1. Prolonged Engagement of The Clutch Without Locking

If the clutch is engaging but cannot grab fully, the clutch will start to smoke due to this prolonged engagement. Prolonged Engagement Occurs When:

(1) The go-karts engine is not powerful enough to get beyond the engagement stage. (2) The clutch weight rpm is not enough

How To Prevent Prolonged Engagement?

A possible remedy to fix this problem is to alter the driveline, making the overall ratio steeper. The simplest way to do this is to increase the rear sprocket diameter.

2. Mismatched Jackshaft Systems

If your go-kart has a jackshaft installed, check that the setup was done correctly:

The clutch should not be installed on the driver of the jackshaft, with a ratio in front of it.

This setup will rotate the clutch too slowly, even when the overall ratio is correct.

The clutch engagement rpm must be taken into account. Otherwise, the clutch will smoke on the secondary jackshaft’s mounting position. If the clutch is not engaging due to too little horsepower, or too slow clutch speed, you will need to change the system by altering the ratios in front or behind the clutch. If the clutch is not engaging due to: Too little horse-power or Clutch speed being too slow. The system needs to be changed by altering the ratios in front or behind the clutch syste

3. Too Much Sprocket Teeth: A typical clutch has 10-12 sprocket teeth. When a clutch has more than 12 sprocket teeth, it will probably give some trouble regarding the drive train, usually in the form of overheating and smoke.

4. Oil Inside The Clutch: Ensure to oil the internal bronze bushing located behind the snap ring, next to the sprocket teeth after every hour you have driven. Make sure to never put oil on the inside of the clutch! The holes on the drum are there for the simple reason of letting hot air out of the clutch. It is not an area where you want to put oil in, as this will generally lead to a lack of friction between the flyweights and the drum, which will cause slippage, generating excessive heat in the clutch.

5. Improperly Installed Clutch: Installing the clutch properly on the engine crankshaft requires using the correct length key and not pounding it on the shaft with your “magic hammer.” If the clutch is not installed correctly using the right tools and directions, it could lead to your clutch smoking, lasting only a few minutes instead of several years.

6. Using Big Tyres On Your Kart: Go-karts with rear tires taller than 15-inches, or an engine larger than 8-horse power will require a torque converter. Using too big tires can burn out a clutch in seconds. If you are using big tires, you will need more teeth on the axle sprocket. Ensure that the setup gear ratio is correct regarding the size of your tires and the teeth of the axle sprocket.

7. Driving Too Slow: Driving your go-kart in too slow a fashion could be the reason your clutch is smoking. A clutch will start to engage at around 2,000 rpm and lock up at approximately 2,600 rpm. Driving your go-kart at full throttle locks the shoes in the clutch against the clutch drum. When the clutch is not locked, the shoes slip against the drum and cause tremendous heat, drying up the lubrication in the oil bushing.

8.Wrong Gear Ratio: The sprocket connected to the engine and the one on the rear axle should have a ratio of 1:6. For every tooth on the clutch, there should be six teeth on the rear sprocket. For example, if there are ten teeth on the clutch, there should be a minimum of 60 teeth on the rear socket. Having the wrong gear ratio will damage the clutch.

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