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jetting problem need help


freakk_nique

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I have a 1988 j arm banshee was completely stock with a .10 over bore. Just yesterday I put a complete turbine core2 exhaust system on. Changed the jets running 290 main and 27.5 pilot now the bike is running very lean. The original main jet was a 190 don't remember the pilot. But before the mods the bike was running prefect. Need some suggestions by the way the weather here is in the mid 30's

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Mid 30s?! Fahrenheit or Celsius?

If °f then that's way cold. Prob need to up jetting across the board. Pilot needle and main. Also, park the fucking thing. To cold to ride.

If °C then you should be close. I'd look into a leak.

Do a leak down regardless. For intake boots and gaskets that old I wouldn't be surprised if there all dry rotted and cracked.

Also check if your choke tube is in place. May have knocked it out.

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Mid 30s?! Fahrenheit or Celsius?

If °f then that's way cold. Prob need to up jetting across the board. Pilot needle and main. Also, park the fucking thing. To cold to ride.

If °C then you should be close. I'd look into a leak.

Do a leak down regardless. For intake boots and gaskets that old I wouldn't be surprised if there all dry rotted and cracked.

Also check if your choke tube is in place. May have knocked it out.

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