Backfire and lean run - Club700XX - Honda TRX700XX Forum
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post #1 of 3 Old 08-24-2019, 10:00 AM Thread Starter
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Backfire and lean run

I have a 08 , he’s, Barker exhaust , ran oil filter in backwards about 6 hours , messed up the cam , rockers , everything above valves , all have been replaced , cam timing is spot on , runs like a taped ape , but running lean and backfiring out exhaust on deceleration , have rechecked programmer , even bypassed , what could be causing this
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post #2 of 3 Old 08-25-2019, 06:57 AM
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If you find out let me know. My 700 does this and I have changed and or inspected everything outside of the engine cases and it still back fires and stalls. Mine will back fire so hard that the airbox lid gets blown off. I can feel the lid hit the bottom of the seat if I am sitting at the time of the back fire. I have just decided to live with it because I can't figure out the problem.

2017 Honda TRX500 Rubicon
2013 Husaberg FE350
2008 Honda TRX700XX
1995 Honda TRX 300EX
2001 Honda TRX 90
1986 Honda TRX 70
1985 ATC 250 SX
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post #3 of 3 Old 09-03-2019, 09:50 AM
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I have the same trouble. Checked all the things above the valves. In addition the ceramic part of spark plug is becoming red after 1-2 hours of riding. And it feels like the exhaust temp had increased because it feels that my right leg is burning just after 10 min of riding. Never had such problem before. Idk how to figure out, could it be a decomp issue? The engine stalls three times after I start it and just after third attempt it will iddle.
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