Jetting on a Tri Z

[200xer]

I've been piecing my Z back together and know I'm going to need to rejet. It's stock besides a DG pipe, silencer, and Uni filter. How many should I go up? Would I just change the main? I just don't want to run it being lean right off the bat, rather have it a little too rich and come back down. Thanks.

[Dynofox]

This will be good info for me too since i'd like to know what I should be running for jets in my 85 with a dg pipe. How do you like your tri z 200xer?

[DixiePlowboy]

I don't have the original jetting specs in front of me, but I would say go up a couple or a few and work your way back if necessary. I'm sure you'll agree that it's best to err on the side of caution.

[200xer]

I've only been able to put around the yard a little bit because I have no airfilter and no exhaust gaskets at that time. Amazingly it started up 2 kick and ran great. Can't wait until I get all my parts and it's all together.

[TimSr]

What makes you think you have a jetting problem? Run it as is, and monitor the plug.
Mine went from stock pipe to a Cobra pipe, to Boysen Reeds, to a KN filter, to a DG pipe, with cylinder bores from stock to.080" twice, winter and summer, over about 12 years. Ive run trails all day, and Ive run motocross and even a couple harescrambles. I have rarely fouled plugs other than when needing a bore job, and never melted a piston in it. The only time Ive ever touched the jets was to clean the carb. They are original.

[DixiePlowboy]

Do a plug chop to determine if you need to re-jet. Don't take a chance based solely upon what works for someone else.