My bike sounds like its backfiring sometimes (a couple times every 5 minutes or so) and also I see exhaust sparks. Is this OK? What should I do?
2007-04-23 18:57:36 · 4 answers · asked by Edward M 2 in Cars & Transportation ➔ Motorcycles
It just started doing it or have you done something to the bike???
adjusted carbies, timing, new air filter,
MORE info reqd...
2007-04-23 19:14:26 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Backfires and flames out the exhaust mean you are running too rich. If you jetted the carbs, then either go back to stock jets, or modify everything with airflow (filters, intakes, exhaust). You can't pump in more gas without pumping in more air.
Running a rich mix will eventually lead to fouled plugs.
2007-04-23 19:07:41 · answer #2 · answered by A5150Ylee 4 · 0⤊ 1⤋
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2016-11-27 00:29:12 · answer #3 · answered by peckham 4 · 0⤊ 0⤋
Exhaust valves.
Or running way too rich.
When this happened to me, I had a burnt exhaust valve.
If you have unburnt fuel in the exhaust gas, it can be ignited by the "wasted spark" on the exhaust stroke.
2007-04-24 09:59:13 · answer #4 · answered by Firecracker . 7 · 0⤊ 0⤋