Recent Posts  By   (Read times)

The majority of oil leaks appear from the valve cover o-ring. Have also had several with hairline cracks on lower right side of cylinder head. Wise to do a valve clearance ck/adj. while your changing cover o-ring. If you drive the scoot looking for a leak, it will still blow all over. It's better to lock the front wheel while on center stand, and let someone give it partial throttle till leak detected. Use caution as you wouldn't want the scoot to jump off stand while giving throttle; seen it happen, not funny.
Another thing is to check that your crankcase breather is functioning properly, not restricted.

Hi Wheels and welcome. You are on the right track with your diagnosis of clutch and drive. Judging from the photos you posted, it appears the clutch plates are burned. If they are not a good metal gray color, and have spots of blue or black, then they are burned. The heat incurred also affects the friction plates that it comes in contact with. We refer to it as glazing. It would be wise to replace all the plates in the clutch. It is important to pay attention to the clutch clearance measurements. ref. 3-48 service manual. There are 3 clutch plates with various measurements to give you the proper clearance. If you do not have this manual, there is one in the download library of this group. The spring seat and spring are an integral part for proper operation. If there is grooving on the spring seat from the spring ( ref. 3-51) or discoloration, then I recommend replacing them also.
You are wise in replacing ther belt, especially since we are talking about a rubber part that is over 28 years old. The specs may be correct, but rubber compound deterioates with age and heat.
As for re-assembling, if you do not have the mega-dollar special tool, you can utilize a bench vise along with a socket or such that doesn't damage, but be sure and use wood blocks also to prevent direct damaging contact to clutch housing,etc. You have to be creative, but also use common sense and mechanical aptitude when special tools are not accessible.
While you are at it, I recommend changing the rear gear oil with AMSOIL 20/50. The rear drive and gears can get pretty warm.
Another word of advice from someone that sees it alot: NEVER (that means friends also) let anyone ride your scoot.
I would like an update how it goes.

My first thought is improper fuel level. However, if that's the case, a long highway ride with an eventual power loss or stalling, would reveal too low fuel level. If the level is too high, it causes a loading up, too rich.
Also an improper fuel filter can restrict the amount of fuel needed to run properly, hence the highway ride will also reveal.
You also don't mention if you live in higher altitude (colorado) or if the hills you describe are similar to San Fran.
Strangely enough, something simple as a loose plugcap can cause this situation also.