I recently put a new muzzy exhaust on my 700 and it chugs when it first starts up and sometimes shuts off. I read on here that it needs to be rejetted but i wasn't sure if I had to buy a new jet kit for it or just make adjustments to the carb.

 

Adjustment is not gonna do it. You need to get fatter set of jets (pilot and main, maybe even needle jets). You need to ask Muzzy guys what they recommend for your application instead of you doing all the R&D work.

 

You might have to re-jet, but a jet kit will not help a starting or idle problem. I would check too see if it is getting enough air and also for pinched air hoses.

 

I would try adjusting the mixture screw also

 

Hi guys I am thinking about a 08 kfx 700 I am not familiar with kawasaki but I like the V twin . I have read lots of positive input really nothing negative . Other thought are KFX 450r or honda ?.Any body have any thing on this thanks

 

700 (sporty) and 450 (sports) are not on the same leaque. One test ride of the each machines will tell you exactly what I mean.