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Old September 13th, 2019, 09:51 AM   #9
LordVardamir newbie
Name: Jeremiah
Location: Newmarket, NH
Join Date: Aug 2019

Motorcycle(s): Ninja EX250

Posts: 7
So I have been testing the bike with the gas tank off and just have a funnel of gas hung at the side. I never thought to close off the vacuum port that normally goes to the tank petcock. Leaving it wide open is just one HUGE vacuum leak! Good call jkv45. After closing that off the idle became much more stable and the engine seems to rev more normally. Awesome! Thank for all your help! I'm still going to have a carb cleaned to have as a back-up or to put on the bike and see how she does.
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