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Weak exhaust pressure on left side


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I had the same problem a little more than a month ago, and it ended up being a bad coil. It would only fire both sides, when the coil was cold, and as soon as it got warmed up, the left side would quit.

How much did the coil cost you?

Edited by CadyRidah
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Ok it's not the coil. I did notice that when it runs only the side with low exhaust pressure, the pipes are cold. So it's like there's no combustion at all going on in that cylinder. I didn't do a compression test yet but when I crank it and put my finger over the hole it feels just like the side that runs fine. I won't find out for sure if it's bad until I do the compression test though. So I guess the only thing left if the compression is good is the reeds. Could it be anything else?

 

Thanks for the replies!

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