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Jetting thoughts
Hi all, Ive recently fitted an andrews ev13 cam into my 1991 fltc evo, the papers that came with the cam advised a 48 slow jet and a 195 main, my bike has a k&n filter and fairly open/noisy silencers, the jets i had were 45 slow and 180 main, i fitted a 48 slow jet, and a 190 main, i already had these, bike goes well, but having read a lot of threads on the jetting sizes, i am thinking that they are to big, for my bike, would like any thoughts on this
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Ride it for a while and note any possible running problems. Bear in mind that you should make decent rides to ensure the engine gets hot through, not 2 minutes up the street and back!
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I have the same EV13 cam in a ‘97 FLHR, SE airbox, 2-2 Kirker slip on mufflers. I rebuilt the cv carb and installed a CV products emulsion tube... I started with a 48 slow jet and a 180 main. I changed the main out to a 185. I think the bike ran marginally better with the 180, but the motor seamed to get considerably hotter. The 185 seems to be right for me. The difference in gas mileage between the 180 & 185 was insignificant. (I’m getting 47 mpg backroad riding) I can’t recall the turns from seated on the mixture screw, but I do know the 180 required more “out” on the mixture screw to get things dialed in. Good luck |
Invest in an AFR set up and stop guessing.
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Good idea on the afr, had a good ride out, and bike is running very well, very pleased with the cam change. I recently bought this bike back of my friend, who i sold it to seven years ago, and having fun with it
https://cimg6.ibsrv.net/gimg/www.hdf...85407f17f2.jpg |
Nice machine... Kingglide preaches the AFR; he’s right... not a bad message. I just don’t want the bungs in my head pipe or the added expense. Then again, mostly stock bikes are easy enough to dial in withought an AFR.
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I would jet it that way but also add a 1mm shim under the needle.
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