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Guys, I might have discovered the issue. I just pulled the carb apart and the pilot looked clogged. I soaked it in carb cleaner and then blew it out with the air gun. What's weird is when I look threw it, it looks like there is a tiny screen in there? I can see light and it looks clean but when...

Befor starting this tread I cleaned the crap out of the carb pulled the jets, I also changed the oil, cleaned the air filter, drained the gas tank, so I think I covered the basics. I am going to pull the carb again today to check it out. I want to get a good look at the float valve. When I...

Here's the directions for the keihin carb. http://www.duncanracing.com/TechCenter/KeihinCarbJetting.pdf

That seems like a good plan. Unfortunately this atv has not been used much over the last few years. Maybe a few times. So it hard to give you the total story on how it's running. I bought myself and my wife a couple 4x4 ATV's and last year got my 8 year old a brand new LT80. But seeing her...

Gen1Pat, When you say stock warrior specs do you mean for this carb? I believe I am at standard for this carb. http://www.keihin-na.com/aftermarket/pe/ Stock warrior is something like a150 main and 42 pilot. Are you saying tring this combo? Sorry tough understanding. I thought the main ony...

I just tried moving the clip on the needle to the top position to see the results. It fired right up. At idle the smoke definitely cleaned up. I turned up the idle so she was reving up a bit. Then closed the air screw until she started to bog. Doing small slow adjustments it rev'd at its highest...

Gets super hot fast. A five minute warm up and its burning. That says lean right? But if it's lean shouldn't the plug be white? So confused!!!

I thought black soot means running rich too. It's not oily at all but real sooty. All around the bike runs good. No problems at WOT. But she is running hot! That is why I was thinking the pilot, because it's idle to 1/4 smoking the most. After a good cleaning of the carb she fires right up...

Ok, I will try that tomorrow. What's with all the soot? Should I see a quick improvement?

All, I am running a 38mm PE keihin carb on my 90 warrior. My jetting is a #160 main, #50 pilot and AJM needle on the second notch. My problem is my plug is covered with black soot. At idle and with a short rev there is a lot of black smoke coming from the exhaust. If I put in a brand new plug...

Hey all, I took my clutch out today for replacement and noticed the tabs on the clutch housing have scoring on them from the friction plate tabs rubbing. Some tabs are smoother than others but some feel pretty deep. Like moguls, one after the other. Has anyone ever tried smoothing them out with...

Is that the old RR track that runs for miles? I have not been there in years. I used to go there way back when. Is it still good riding? I remember it was a fun track, over and under bridges, lots of break off trails and pits and some long straights you could really open up on. Last I remember...

Thanks for all the welcomes guys. This is a great site! I can't believe I have owned a Warrior for 20 years now and have never been here? I wished I knew about this site the many times I had my warrior in pieces all over the garage. Thank god for my old school CLYMER. That book has more hours on...

Just joined and wanted to say What's up YFM350! I am from just outside Boston, MA, but do most of my ATVing in NH. I ride a 1989 Yamaha Warrior 350 that I bought new and have kept in MINT condition with tons of add-ons from top to bottom. I have not been doing much riding over the last few years...