Search found 10402 matches

by Wheelman-111
Thu Jul 18, 2019 5:39 pm
Forum: Performance Technical
Topic: 86 Aero AF05E Mild Performance Increase
Replies: 12
Views: 498

Re: 86 Aero AF05E Mild Performance Increase

Greetings: I had that pipe on Flash 1, and I thought it was pretty good. Kit #4447 to mount it to the SE05 block if I recall correctly. It should perk up the performance of the stock engine, at least a little. Stock main on the '87 Aero was 82 (again from limited Wheel-memory) and the pipe should le...
by Wheelman-111
Thu Jul 18, 2019 5:30 pm
Forum: Technical Help
Topic: Elite S Dies after full throttle rushing
Replies: 7
Views: 397

Re: Elite S Dies after full throttle rushing

Greetings:

I believe the optimum idle speed is 1800RPM, not 900. Otherwise Bones is correct.
by Wheelman-111
Wed Jul 17, 2019 6:48 pm
Forum: Technical Help
Topic: Elite S Dies after full throttle rushing
Replies: 7
Views: 397

Re: Elite S Dies after full throttle rushing

Greetings: If the head-pipe is still even partially restricted by the washer remnants, a 78 will be too much jet. The mixture will be excessively rich, which fits with a top speed of only 38. That scooter should break 40 easily if the power was unimpaired. You could be fouling the plug with too much...
by Wheelman-111
Wed Jul 17, 2019 6:38 pm
Forum: General Discussion
Topic: Clutch problems
Replies: 2
Views: 340

Re: Clutch problems

Greetings:

No oil belongs in the belt cavity what-so-ever! Is the "new" belt greasy? It and the pulleys at both ends must be dry for the belt to grip. If the inside of the clutch drum is slick, it will cause the same symptoms. Without pics it's hard to say.
by Wheelman-111
Tue Jul 16, 2019 11:08 am
Forum: Performance Technical
Topic: Advise on building for acceleration
Replies: 4
Views: 253

Re: Advise on building for acceleration

Greetings: Everything Bones and Meat said is spot-on. I have the Iron Polini, a ZX setup and 9.1 gears, all else is stock. The ZX pulley might slow top speed a little if you keep stock gears. Larger Polini-for-Ruckus variator matches it up well. They do make a 9.80:1 secondary gear set if you prefer...
by Wheelman-111
Tue Jul 16, 2019 11:05 am
Forum: Technical Help
Topic: Bogs on throttle opening and now won't even start
Replies: 6
Views: 304

Re: Bogs on throttle opening and now won't even start

Greetings: I suspect you finally got it to run long enough and warm up enough to burn off the half-crankcase full of oil resulting from 547 days of a slowly-leaking oil pump o-ring. This might be the reason why your plug fouled out. It should be fine if you run it frequently, or you can look into re...
by Wheelman-111
Tue Jul 16, 2019 11:01 am
Forum: Technical Help
Topic: Stumped
Replies: 13
Views: 334

Re: Stumped

Greetings: The black ByStarter cover is there to retain heat when you stop the engine for a short time (~5 minutes?) and then restart. If the cover is missing, the bystarter is going to cool faster than the engine, resulting in an enriched mixture when you restart your already-warm engine. This will...
by Wheelman-111
Tue Jul 16, 2019 10:57 am
Forum: Technical Help
Topic: Can't climb / go up even slight hills - Elite SB50 1989(?) - Clutch / belt issues
Replies: 15
Views: 461

Re: Can't climb / go up even slight hills - Elite SB50 1989(?) - Clutch / belt issues

Greetings: It is still not clear that the outer sheave of the Drive Face is fully seated in its correct position. However since the symptom improved, I suspect the cover gasket might for some reason be compressed too much. Consider this: 1. Loosen the cover bolts a little bit to finger-tight. 2. Sta...
by Wheelman-111
Tue Jul 16, 2019 10:48 am
Forum: General Discussion
Topic: Need help buying motorcycle earplugs.
Replies: 2
Views: 205

Re: Need help buying motorcycle earplugs.

Greetings: The wind noise inside even a properly-fitted helmet has been measured and found to reach damaging levels. Longer rides at higher speed of course increase the risk. Industrial Safety Supply stores carry dozens of brands and designs of earplugs. They're dirt-cheap, so buy a variety and expe...
by Wheelman-111
Tue Jul 16, 2019 10:41 am
Forum: General Discussion
Topic: Centrifugal clutch
Replies: 6
Views: 266

Re: Centrifugal clutch

Greetings: The big coil spring forcing the pulleys together (the one behind the clutch), if broken, would result in a free-wheeling engine unable to transmit power to the gearbox and rear wheel. A broken CLUTCH spring - the three that pull the shoes to center - would result in a clutch that fails to...
by Wheelman-111
Sun Jul 14, 2019 4:38 pm
Forum: Technical Help
Topic: Stumped
Replies: 13
Views: 334

Re: Stumped

Greetings: It sounds like the carb bowl is overfilling. The level is controlled by a float/needle valve, the rubber-tipped needle of which is known to fail after time. 34 years is a lot of time... Anyway the engine is inhaling liquid gasoline instead of carefully blended vapor. Find a float needle a...
by Wheelman-111
Sun Jul 14, 2019 8:58 am
Forum: General Discussion
Topic: Centrifugal clutch
Replies: 6
Views: 266

Re: Centrifugal clutch

Greetings: No direct adjustability beyond altering the weights of the "legs" and the strength of the springs. If you dismantle the assembly entirely, it is possible to grind a few grams off the pivoting shoes for a higher stall speed. Some on this Forum report that springs from certain years of Yama...
by Wheelman-111
Fri Jul 12, 2019 11:09 pm
Forum: Technical Help
Topic: How do you get that oil pump plug working?
Replies: 10
Views: 317

Re: How do you get that oil pump plug working?

Greetings: O-rings come in different thicknesses as well as diameters. Perhaps it was bad luck on the original, not "square" when you pushed it in, or a sharp edge on your crankcase. After that maybe replacements are too thick to fit? Measure the pump bore and the plug diameters. Lawn irrigation sup...
by Wheelman-111
Fri Jul 12, 2019 7:56 pm
Forum: Technical Help
Topic: Can't climb / go up even slight hills - Elite SB50 1989(?) - Clutch / belt issues
Replies: 15
Views: 461

Re: Can't climb / go up even slight hills - Elite SB50 1989(?) - Clutch / belt issues

Greetings: If you loop the belt around the crank end, then squeeze the upper and lower courses of the belt together it puts enough tension against the spring so that your other hand can pull them apart. Once the belt is wedged in there, it tends to stay put and keep the rear sheaves apart unless you...
by Wheelman-111
Fri Jul 12, 2019 3:24 pm
Forum: Technical Help
Topic: Can't climb / go up even slight hills - Elite SB50 1989(?) - Clutch / belt issues
Replies: 15
Views: 461

Re: Can't climb / go up even slight hills - Elite SB50 1989(?) - Clutch / belt issues

Greetings: Sounds like the kicker cover assembly is crowding the Drive Face. There are two reasons that come to mind; 1. You omitted the cover gasket, which is factored into the clearances needed for the kicker to engage and then disengage. Make sure you have a thickness of about 0.8mm or the cover ...