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I have a 93 Honda CB750 Nighthawk Motorcycle, my friend installed headers on the bike and removed the stock exhaust. Now the bike runs rough I have to rev it up while stopped at redlights, should I replace the jets In the carburetors since the bike is now getting much more air, shouldn’t the carbs need more fuel, when I give it gas it sputters an coughs some, I can play around with the choke and it helps a little. The bike doesn’t act up as bad if I gapp the throttle and accelerate fast it kinda clears a little until I let off the gas. Should I replace the stock jets in my carburetors with bigger ones, and if so what size would be recommended. Thank you
Hi, just a few things to look at, first when the bike is at operating temp, take out a spark plug and see if the colour is verry light biscuity colour if so then the bike is running to lean and may need rejetting, if you rejet then its better that you just go up in sizes untill you are happy with the whay the bike runs, the other whay is some times when you change the exhaust thay thay do need to be rejeted and the people who sold you the exhaust should beable to tell you what jets you will need, just remember that the colour of the spark plug gives a good indication of the right fuel mixture, hope this was some help, all the best.
on Jul 04, 2019
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