Just wondering. I've used a 155 main for the last year (I think thats right), but I saw that HMF's website was showing specs for a 175 main. Mine has always done what I considered was pretty good, but I never really tweaked around with it. Just wondered what others had used.

 

andy, that's what the dealer put in mine as well.If you use that 175 let me know if it a big difference.I used the dynojet kit(155).I had never thought about bumping it up...[img]i/expressions/face-icon-small-shocked.gif[/img]

 

The mikuni jets are not the same as the dyno jets. I would definitely go with the dyno jet recomendations. I tried a 160 to see what would happen and it stumbled on full throttle. They are right on. I didn't change it again until I modified the airbox lid. WOW! I installed 12 Uni filter vents and went up 6 jet sizes. I am running 180 and will probably drop back to 175 because it had a little more bottom end with the 175. It will stand up on its back wheels without help in high gear. It tops out at 67 mph with the tires hard and 64 with them at 5 psi

 

If I'm right, I'm using 155 (but it could be 150). It was the dynojet kit that came with the pipe and filter. I'd never really thought about changing before, but I was just wondering because that 175 listed on HMF's site seemed like quite a big difference in size. I can run up to 68 regularly with stock crap tires. But of course the GPS would call that 63. I can wheelie it when the sway bar is on with stock tires, but I still have to pull on the bars pretty good.