When you are installing new jets do you have to remove the carbuerator from the quad or can you do the jetting with the carb left in and the top of it off? How do you guys do it? thanks

 

The carb will be left in.

 

thanks

 

I think it is better to remove it, at least the first time because you have to remove the float bowl which is attached by four screws. From the factory they are very tight and the stupid screws will strip easily. You need to apply as much pressure as you can to break them loose and I doubt you can do it with it on the bike. I just did mine a few months ago (2003 Z400, yoshi full comp series, dyno-jet kit with airbox lid removed) and I don't see how it could be done without removing the carb, plus the Dyno-jet kit requires you to change the jet needle and possibly adjust the clip on the new needle depending on the recommend setup. Also, while you have it off, take the screws that hold the float bowl on and go down to a repair shop, dealer, or hardware store or somewhere you can get the same size stainless steel allen screws to replace the stock phillips head ones. Then you could more easily change the main jets without having to take the carb off.

Bottom line is that there is so much stuff in the way it is hard to get to, and unless your bike is spotless it is easier for dirt to get in somewhere. Either way you'll want to clean things up enough so nothing gets in while you are pulling it off or working on it.