Centrifugal Anyone ever used the Centrifugal Clutch Kit?

[POPS]

Iron
Do you have a 50cc as I read somewhere that the clutch kit doe's not fit the 50. Where did you buy your kit from? I don't understand why you had to do some grinding to get it to fit and the gears don't mesh right ? I bought mine from from Zoombicycles.com'80cc LTD,centrifugal and pull start kits. I have installed both and they went on like a charm. If you go to his sight and look at the kit under parts, click on it and a PFD install link is there. Mine installed just like that. No problems and no binding or mesh issues but I haven't road tested as of yet because it's still on my bench getting other MOD's but it turns smooth by hand. I will keep you all posted once I put it on the hill's...POPS

 

[Skyliner70cc]

I got a BGF kit. Many dented/dinged/damaged parts, no customer service, engine runs well and clutch kit works as advertised. Rope on pull starter broke on 6th pull.

 

[iron_monkey]

I have a 60cc (not 50 or 66 or 70). What was the issue with the 50cc? Mine was that the clutch bushing wont go very far down the crankshaft if you dont increase the bushing inner diameter a little.

Also it means the clutch itself wont go in properly and you cant even put the cover on.

The vibration im guessing is due to the clutch pads not being totally centered in respect to the clutchbell and one of the pads having lower resistance than the rest; meaning at low rpm only pad is hitting only one area in the clutchbell.

I didn't disassemble the inner clutch assembly to have a look at the pad levers/spring/etc, seems to be out of my depth. I have no idea where to start, and I think the spring would a real pain to put back on.

 

[POPS]

It is a tapered shaft and a tapered bushing. I wonder if it is possable that the bushing was on backwards? Did you check out Zooms install instructions? Mine went on like that with out a hitch... About the no fit 50cc issue I thing it was on the customers reviews for the product...POPS

 

[POPS]

Iron
I had another thought about your dilemna. Did you know or perhaps forget to remove the half moon key in the crank??? That would explain everything you are discribing for problems. If the key is still in there pull it apart again,remove and reinstall. Hopefully everything will line up like it should...POPS

 

[iron_monkey]

Iron
I had another thought about your dilemna. Did you know or perhaps forget to remove the half moon key in the crank??? That would explain everything you are discribing for problems. If the key is still in there pull it apart again,remove and reinstall. Hopefully everything will line up like it should...POPS

haha yes i did, I spent alot of time looking at the crank/bushing thinking what i have done wrong before resorting to drastic irreversible measures (grinding). Either its bad quality control (on the clutch or my engine) or its made for the 66cc version my importer sells.

Bushing definitely wouldn't have gone backwards, that would have been physically impossible.


edit: Well I know why its vibrating/making clanging noises at low rpm now. Looks like the clutch isnt engaging properly. I finally notice the diameter of the pad assembly/inner clutch changing erratically and this is evidently making the racket/vibration. It should slowly expand into the clutchbell for smooth engagement but it doesn't. Alot less serious then I thought as i thought it was the bearing.

The fact that I dont know how to disassemble the inner clutch and the saying "if it aint broke don't fix it" I'd probably leave it alone.

 

[POPS]

Maybe it will smooth out as it breaks in . Keep us posted...POPS

 

[iron_monkey]

Maybe it will smooth out as it breaks in . Keep us posted...POPS

clutch doesnt smooth out at all. Getting a new clutch since they're gone alot cheaper at my importer and see if things change.

 

[iron_monkey]

Okay bought another clutch, since they become much cheaper from the same chinese ebay shop.

This one was what my first clutch should have been. The bushing now has been pre-bored so it fits into the crankshaft properly, and more importantly the thing doesnt vibrate massively with a loud racket when it starts to engage.

This one slips significantly more, but im guessing the pads need to be broken in (only used for 5 mins as of now).

 

[iron_monkey]

There is no limit to the dodgeyness of these clutches. The gear had completely severed itself from the clutchbell after 10min of riding.

Comparing this to the first clutch, the worker who built this one had appeared to put too little "adhesive"/soldering (silverish grey material that keeps them together) to this one.

Now to find a glue/epoxy.