TOPIC:

i got my bike about a month ago and it was running pretty good. the two problems i have addressed are: 1. the other day i killed the battery trying to start it. cleaned the carbs, and fixed that. 2. muffler on the mac system was hollowed out and too loud. bought a new one and put it on today. now it sounds nice but i think i might have to jet up a little bit. (i know i shouldnt have done this but) i ran it around the block with the airbox hoses disconnected and it seemed to be pretty lean. i know the open carbs would make it leaner but i didnt think it would effect it this much. i figured with the new non-hollowed out muffler on, it might even that out a little bit. i would just slap on the airbox hoses and try it but they were like hardened steel when i took them off so they had to be cut. after a few hours of reading posts on the pods vs. airbox debate im still deciding. are the jet sizes punched in the jets like they would be on a holley? i dont know what the stock jet sizes are so im not sure if the guy rejetted after he put on the mac exhaust.

Running open carbs makes a big difference, so it's hard to tell what jetting you will need. Jet sizes are written clearly on the jets. 102.5 is stock. I recommend buying new rubber and retaining the stock airbox. You think it was not the greatest idea to ride around a bit with open carbs? Well thanks to a huge rainstorm, I was forced to take off the K&N pods off my KZ650 and ride all the way from South Dakota to Colorado with open carbs because the dang pods were sopping wet and wouldn't flow air.