Question about UM Motorcycles
Hi, Shawn I would really love to help you but due to the magnitude of yesterday's solar flare the batteries in my crystal ball are dead and my mental telepathy headset circuitry was melted. I need the year, make, and model of your motorcycle please click on the word "COMMENT" below and provide this information in the box that will open and then click on the green comment box in the bottom right-hand corner after it posts I will receive an "ALERT" icon that will allow me to respond to your information.
Good luck and have a wonderful day.
Posted on May 06, 2017
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Posted on Jan 02, 2017
SOURCE: Yamaha 2002 TTr 250
Look around your bike near where the throttle cable meets the engine, when you pull the throttle, the cable pulls a quarter circle piece of metal which is connected to a spring, then connected to that should be a screw, that is the idle screw, turn it very slightly, usually clockwise to make the idle higher, and this should sort out the problem.
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Posted on Apr 12, 2009
plugs could be wrong heat range they could be too cold make sure you have right heat range.if all is good.replace air filter.have injectors tested they could be leaking when you turn engine off.have charcoal canister check.check fuel pressure regulator for rupture diaphram.if all is good.scan it check egr valve.if stuck open a little it will cause rough running foul out plugs.
Posted on May 29, 2009
SOURCE: 87 325 runs good when
It's the automatic choke!
The choke is "closed" or barely open... When cold, the engine needs a RICH mixture (more gasoline, less air). When the engine warms up, it requires a LEAN mixture (less gas, more air).
It is probably creating BLACK tailpipe smoke ... that means unburnt gasoline. (Blue smoke is OIL, white smoke is WATER).
Put the parking / emergency brake ON.
1. Remove air cleaner assembly from intake, use a carb cleaner spray or throttle body spray cleaner and spray just a little. (AutoZone $5)
2. Find the accelerator arm under the hood.
3. start car, rev the engine to make sure how to operate the accelerator from under the hood.
4. Carefully spray into carb / throttle body and work the accelerator ... don't let the engine die...
5. Watch out for "backfire"... it may create a small flame out of the carb. It will extinguish itself in one second.
6. You may need to do this two, three times.
7. Add a "complete fuel system cleaner" to your next tank of gas ($8).
That's it! ... pretty cheap, too.
Hope this helps!
Posted on Sep 04, 2009
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