Here's a trick you can try...First start the engine and feel the heat coming from each of the exhaust pipes where they are bolted to each head to determine which cylinder is missing (the cooler pipe) then kill the engine and pull the spark plug cap up just a little bit to where the spark has to jump about a half of an inch or so from the cap to the plug then start it again(don't touch the wire while it's running though or it will shock you) if the spark has to jump from the wire to the plug it will make the plug fire hotter but if the cap is pulled too far off the spark can't jump the gap. It should instantly start running better but leave it that way and run it for a few minutes before pushing the cap back down all the way. This can also be done to start a bike that has been flooded and won't start at all... If this has no effect than the plug will most likely have to be replaced...
2006-11-11 09:22:46
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answer #1
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answered by barfoeng 4
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Like the others, check the plugs first.
Remove plug, reattach plug wire, ground it out to the head (by the threaded part of the plug), and crank it over with the ignition on. If you see a spark between the center and side electrodes, it's not a spark issue.
If no Spark, and new plugs don't get it, it could be an ignition unit (I had one go bad on me, in less than 2,000 miles), a coil,(if, by you're description of running on one cylinder, you have one coil per cylinder).
If you have more than one carb, pull float bowl and make sure you're getting gas to both carbs.
If it has sat for a while, without draining gas out of it, the idle jet in the carb might be plugged.
2006-11-12 09:39:22
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answer #2
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answered by strech 7
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First, the plugs. If they're good, check the wires. Good? Check the coil. Once you get the electrical right, the backfire should be corrected. If not, the first thing to check is the mixture by checking the color of the plugs. Is the backfire out the pipes, or through the air cleaner? My guess is that you shouldn't even get to the last 2-3 steps. If you do, time to take it to the shop.
2006-11-11 16:36:13
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answer #3
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answered by mr.threethirtyfive 4
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Like was said above, the plug could be bad, or cracked, change them out first, if it's still happening, check to ensure that the dead cylinder is getting a spark, pull the plug and try to start it, look for the spark on the plug, if that isn't working, your problem could be in your ignition system, The coils for the cylinder could be bad. You can put the ciol on a tester, my Yamaha is 1.53 ~ 2.07 Ω at 20 ËC (68 ËF). If the coil isn't checking out correctly, ry switching the coils and see if it corrects it.
2006-11-11 14:34:50
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answer #4
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answered by Anonymous
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Plugs, wires, than the coil or coils. I think the Intruder has a coil for both the front and rear cylinder. One might be bad.
2006-11-11 19:36:57
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answer #5
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answered by Anonymous
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Sounds like the timing is out on that cylinder,could also be a bad valve.
2006-11-11 15:15:02
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answer #6
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answered by solara 437 6
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try a fresh set of plugs first
2006-11-11 14:29:47
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answer #7
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answered by roadstar982003 1
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check for spark ,switch plugs
2006-11-11 17:47:54
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answer #8
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answered by Anonymous
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change your spark plugs.
2006-11-11 14:32:37
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answer #9
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answered by catwoman 3
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