Author |
Message |
Stavrossi
| Posted on Saturday, February 23, 2008 - 04:26 am: |
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BIKE WHEN ACCELERATED, MISFIRES, THEN BACKFIRES, THEN CUTS SPARK ADVANCE AND THROTTLE POSITION ARE ATTACHED FROM 2 RIDES , SAME PROBLEM. ANY IDEAS WOULD BE WELCOME, DEALER ADMITS THEY ARE STUMPED ENRICHMENT AFTERWARDS ALWAYS INCREASES =+/- 16% |
Bombardier
| Posted on Saturday, February 23, 2008 - 10:04 am: |
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Air leak on the intake manifolds. Blocked fuel/faulty fuel pump. |
Tazmania720
| Posted on Thursday, March 13, 2008 - 08:59 pm: |
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how in the world does a leak in the intake manifold cause a backfire? I am having a similar problem with my 99X1 and recently heard that problem. I just don't get how the part that lets air mix with the fuel, a leak in a gasket, i am guessing, would cause the problem. |
Bombardier
| Posted on Friday, March 14, 2008 - 06:23 am: |
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When the engine runs lean it tends to get hotter. Also a lean mixture ignites easier than a rich mixture so what may be happening is preignition due to the lean mixture. This can be caused by letting too much air in eg a leaking intake manifold rubber gasket or the injectors not injecting enough fuel blockage or not enough fuel. |
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