Thread: Yong Xing
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Old 08-27-2008, 05:37 AM
Antony Antony is offline
Motorized Bicycle Newbie
Join Date: Aug 2008
Posts: 8
Default Re: Yong Xing

Originally Posted by NEAT TIMES View Post
Anthony, If You Have The Kit That I Beleive You Have, There Is Only I Gear (speed) There Is No Neutral. Only Clutch Engaged Or Disengaged. The Little Arm Above The Motor Sprocket Is The Clutch Release Arm. The Clutch Is On The Other Side Of Motor, Under The Cover. A Rod Runs Thru A Hollow Shaft To The Other Side. Take Cover Of Booth Sides And Study It. You Will Have To Learn How To Adjust Clutch. Be Careful So You Don`t Break Clutch Arm. Its Basic Clutch, Once You Understand It. When You Take Cover Off Rite Side, You Will See Small Gear On Motor Crankshaft The Drives The Big Gear On Clutch Housing. The Clutch Drives The Chain Gear. Study It And Read The Pertinate Posts. It Will All Fall Into Place For You. Take Your Time And Enjoy Your Build. They Are Great Little Motors, They Love Attention, And You Can Not Holler At Them. Ha Ha. Ron

I read Norman's witty, yet helpful post on the clutch. One thing he points out is the adjustment of the flower nut. It seems that no matter what I turn (this flower thing included) the whole engine is turning over.

There are three levers. The biggest is the brake lever. The next biggest is the one that that has a dial that goes from one to three and the smallest goes back from three to one. All levers are functioning, though now I'm wondering why they're numbered. Is it perhaps the case that when it's on #1 it won't be strong enough to move the chain?

This is what I'm up against:-

'At the ends of the handle of the clutch, please ensure keep a certain free space, generally 2-3 mm. Only proper space able to ensure the timely decoupling of the clutch and free of slipery. In the course of adjustment, loosen the handle of the clutch, turn the hollow-center screws, turn outside for decrease of space, turn inside for increase of space. After adjustment, tighten the nuts and avoid loose. If slipery in case of proper space, dimantle the cover of the clutch to check if the cover sleeve of the clutch is loose, and tighten if necessary.'

And that's their 'definitive' clutch bit.

This site that jasonh posted shows what appears to be the exact same engine, but without a brake type lever for disengaging, just the two click levers as previously described, though on the throttle handle there is a kill switch.

Any further thoughts would be much appreciated.

Thanks also goat herder. Now I have to choose between your advice and theirs, which reads:-

'Install the assembly of gear disc at the rear wheel of the bicycle, cover the outside tightening rubber at the rear axle, then cover the assembly of gear disc, its concave side closely attached to rubber. At the other side of the steel wires of the rear axle of the bicycle, install the inside tightening rubber, press the outside tightening rubber with small and large tightening plates. Install and tighten the assembly of gear disc at the rear wheel. In the course of tightening, ensure the radial and axial deflection between the gear disc and the rear axle less than 1 mm. Don't tighten excessively, tighten only for alignment of the assembly.'

Hmm. Difficult choice.

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