Question about Motorcycles
Posted by Anonymous on
Bad alternator, no voltage in system, or check your air filter, I had a similar problem on an old RD350 which had a filter under the seat. It would shift around and once I sat on the seat it was cutting off the air flow to the motor.
That's why it would start when I pushed it but not while I sat on it!
Needed a little spacer to keep it away from the seat. I bought it like that just after it was all rebuilt with racing parts, got it dirt cheap, $10 part that they forgot to put back on the bike when it was done.
Old owner never even drove it 1 mile after he had all the work done to it. He couldn't figure out what was wrong and sold it as is, he was just ill after I drove back and showed him how it ran, you could hear it 2 miles away!
Posted on Sep 23, 2014
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Posted on Jan 02, 2017
You will have a carby problem. When the choke is one, and different fuel circuit is used. When you turn off the choke, you go back to the idle circuit of the carb is used, when under throttle, main jets kick in. You probably have a blockage in one of these circuits. Strip the carb down, clean with carby cleaner, blow out all air circuits and jets with compressed air, then setup the idle mixture and tick over speed. Always work with fresh fuel, and drain off, discard any fuel older than a couple of months. It goes off, and turns to a gel like substance that blocks up your carby. Hope this has explained your problem. Happy to talk to you more about it. A FixYa vote is a great reward for for my time taken to explain this to you. Cheers
Posted on Feb 08, 2009
it sounds like a jet has become plugged. the popping is generally associated with a lean condition. in your case it seems the pilot jet is plugged. this is very common because the pilot jet is a very small orifice and is apt to plug and cause bad low throttle or idle conditions. removeing the float bowl and takeing out the pilot jet and cleaning it or replaceing it should solve your problem. this also will help with the cold starting conditions. thank you.
Posted on Mar 24, 2009
Drain the carburetors. There should be a screw on the lower side of the carb float bowls. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install new stock spark plugs and start the engine. If the bike still doesn't run properly then shut off the gas and remove the carburetors from the engine.
For each carb, remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray all the little airways and fittings in the carb. If your carb has them, remove the two screws on the outside throat of the carb and spray into the screw holes as well.
Be sure to put these two screws back in the same location they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carbs. Let the float bowl fill then start the engine. This process should get you back on the road.
Please rate this solution as " FixYa " if all goes well. Thanks
Posted on Mar 27, 2009
Double check your battery. It could be bad and not holding a charge... If it's good then you can move to the generator. An easy way to check the generator is to get a voltage meter and put one lead on the pos and the other lead on the neg (while the bike is running), the voltage meter should read approx 14volts. If not, then you know the generator isn't putting out enough power to charge the battery. Then check all wiring back to the stator. Hope the stator isn't bad because I remember it being pretty expensive. Good luck...
Posted on Jun 14, 2009
No wait this means that the mixture is too lean in gas. When you activate the choke it 'chokes' the engine of air. This is why on a really cold day the choke must be used to start the bike or to pull fuel through on a morning. So what ever you do don't make your mixture leaner in fuel.
Posted on Feb 05, 2010
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