ragnarre Posted February 17, 2020 Share Posted February 17, 2020 I have just fitted straight through pipes to my Yamaha dragstar 250 and im finding that the bike sometimes struggles to start when cold. Do i need to adjust the air intake or upgrade the idle jet in the carb? Once its been started its fine for the rest of the day. Link to comment Share on other sites More sharing options...
finnerz89 Posted February 17, 2020 Share Posted February 17, 2020 Yeah you'll need to rejet for open pipes Link to comment Share on other sites More sharing options...
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