How well does the Centrifugal Clutch setup work?

The added weight\flywheel effect of the kit nullified the jerking at low speed on my engine...I can putt along at 10k quite smoothly and when I roll on the throttle from low speeds it pulls away smoothly. A smooth low rpm idle is also an added benefit, at idle you can barely tell my engine is running from 5 feet away and that's nice when I'm stopped for pedestrians at a crosswalk or navigating through the human traffic in a busy mall parking lot.

I'm very interested in this also. Being able to go from a stop to going w/o having to pedal up to speed to avoid jerking would be so nice. i'm willing to drop $30 to try this thing out, however, what I don't like is if it does not work out, did you just ruin the clutch on the engine by grinding down the 3 screws? I think the shifter you are talking about is on sick bike parts, their shift kit runs around 200 - 280 or so. I'd like to see what others have to say about this Centrifugal clutch.

i have a centrifugal clutch and it works great,but mine came with my dualstart dualclutch engine.

granbury_man said:

What I cant figure out is how you can start it without the pullstart....Has to be the spring tention....Anything over a couple mph and it kicks in

Click to expand...

The centrifugal clutch kit from Zoom uses a "roller clutch" type bearing in the clutch drum that runs on the shaft adapter...this means that when your clutch lever is pulled in your bike pedals\rides as normal. Letting the clutch lever out while pedaling engages the stock friction plate clutch which now starts turning the centrifugal kit's clutch drum...the roller clutch bearing in the clutch drum locks up on the shaft adapter when it's being rotated via pedaling if the engine is not running. Hence how you can pedal start the engine as you normally would. If the engine is running the roller clutch bearing does not engage on the shaft adapter and vola' you can stop, idle and take off without even touching the manual clutch. I still pedal some to help with the take offs...it's just less strain on the system since the centrifugal clutch engages at such a low rpm. One other thing I'll mention is that if your forward motion is equal to or greater than engine rpm the roller clutch bearing does engage and you have normal engine braking.

Hope I explained it well enough so you get the idea of how it works.

.