Misfire Help

[highboostrxt]

2011 RXT-X 260 help, I been trying to figure out what would cause a misfire on idle and my ski not being able to go pass 46mph. There is no fault code, I did a compression test and all cylinders were 123-125, there is a new fuel pump. On the throttle it does not feel like its misfiring but there is no power and I cannot go pass 46mph. Any help would be appreciated

[John's truck]

Boost leak/hose popped off/manifold split open/intercooler leaking.

or maybe it’s fuel, check your fuel pressure and check your injectors

[Green Hulk]

2011 RXT-X 260 help, I been trying to figure out what would cause a misfire on idle and my ski not being able to go pass 46mph. There is no fault code, I did a compression test and all cylinders were 123-125, there is a new fuel pump. On the throttle it does not feel like its misfiring but there is no power and I cannot go pass 46mph. Any help would be appreciated

Have you tried installing a new set of spark plugs? Spark plugs need to be changed before the first ride every season. They foul out when the ski sits a long period of time over winter.

[TheDt]

Agree with trying the spark plugs. Also check the gap even though they say they are non adjustable and already gapped, I went crazy and through 3 sets of plugs before i finally set the gap on the 4th set to the max-spec and then my cold startup issues went away.

[troyheb]

Sounds like a boost leak or maybe also a exhaust leak. Could also be plugs as Jerry suggested.

[highboostrxt]

Yes i did a new sets of plugs. I appreciate the feedback, its injector on Home cylinder totally dead

[1tommygunner1927]

Do not install the ignition coils dry. Totally coat them with dialectic grease, top to bottom and inside the spark plug opening.

[Lakedoo]

Hello,

Try swapping the ignition coils around, i had the same issue on my RXT, and found out it was a bad ignition coil.