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Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

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post #1 of 2 Old 09-15-2012, 11:08 AM Thread Starter
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i have a honda 929 and my problem is that it runs good for bout an 1hr and then after that it runs like 3 cylinder is working and it starts backfiring. (sounds like a vtwin bike when this is happening). when i cut the bike off and let it sit for a couple of hrs it runs fine again. any suggestions. plz help. thanks
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post #2 of 2 Old 09-15-2012, 12:13 PM
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Re: lost

Check your fuel pressure regulator.

What mods does your bike have? Get a spray bottle filled with water and start the bike. Once it has warmed up mist some water onto each header pipe. If the cylinder is firing good the water should evaporate quickly. You can isolate which cylinder(s) are not firing good before checking the spark plugs. A bad FPR dumps excess fuel into cylinders 1 & 4.

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