Warrior sputtering at high RPM

[warriorrider11]

I just bought an 87 warrior, and it starts up and runs 100% fine, it has plenty of low end power, but when I get into high RPMs, it sputters and kind of bogs down. I put in a new spark plug, and it was better for about 10 minutes and its doing it again. Im sort of new to quads, so whats going on with it? Jetting?

[gotwarrior]

I would say that your jetting is off..

[54warrior]

I'd start with a good carb cleansing. See if that helps. You didn't state if it has a pipe on it or not? If not, your jetting shouldn't be a problem unless your riding at some crazy elevation.

If there is a pipe on it, then gotwarrior's probably right.

[warriorrider11]

i dont know if it has a pipe on it or not, it looks like it has a cobra pipe, but i bought it like this, and I have no idea. Guess ill clean the carb, see if that helps

[lurch241]

i got a cobra pipe on my 95 and seems i got the same problum when i try to get on it but when i pull the plug it is black as could be what does that mean

[warriorrider11]

mine is black as hell too! maybe its the cobra pipe? I got a different carb from a running quad, and it is doing the same thing, but at least it doesnt leak gas and I can adjust the air/fuel screw. so there is nothing wrong with the carb, its something else.

[cjso5]

ive had this problem before. believe it or not, its one of the fuses that goes into your clutch perch. i had my warrior down to the walves before i found that out.