Anyone know 4 strokes?

[chase@miamiatv.com]

About the time I'm ready to sell the 'ol Warrior, it decides to start running like crap. It ran fine last year...a little popping now and then, but I figured its the White Bro's pipe...its loud! Well, now it idles fine, but pops and bogs when under heavy throttle. I cleaned the carb out a few times and got it running better. It idles perfect now, runs great up to about half or three quarters throttle...then pop pop pop...

I checked the parking brake safety thing (even though the parking brake is gone) and it doesn't make a difference if its unplugged or not. I'm sure it is not that, being it runs fine to about half throttle.

After the last carb cleaning with lots of carb cleaner used, it ran pretty decent. I let it idle for a while to burn up all the cleaner, then gave it a little throttle. It was better, pumped the throttle a couple times (a few pops, but I kept going), then went WOT. After doing that a couple times, I look down and the exhaust is cherry red!! I've never noticed this before and I can't imagine it is normal. I checked the plug after that, and its pretty good...a little dark if anything.

It does seem a little louder this year, but I'm sure its just me being used to my stock Banshee exhaust.

 

Any help would be great!!

FYI--

stock engine, carbs, K&N in slightly vented box, White Bros pipe, Roost Boost, and thats about it....its an '87 model.

 

-Mike

404759[/snapback]

 

i had a 2000 yamaha warrior stroker kit from alba and what made me sell my warrior was the damn electircal shit pissed me off , it would only run for 5 minutes then it would shut off ! and take over 30 minutes to crank up . Probly cdi or some other wireing crap but instead i parted it ALL out on ebay and am building a banshee....... Nuff said the warriors dead !

[2twin350s]

put your needle clip back to stock keep the 142 main jet. set the air scre 1.5 to 1 3/4 out from seated. if you still have the low end hesitation, try runnin with the air box lid off. if that works driil some holes in the lid and reinstall

[mccarty7]

to thick. no cover on air box. outerwear if u want, mines tempermental but i dont have a warrior. had one, then slid off a cliff with bald tires. broken rib, cracked rotator cuff and oh yeah! ....punctured lung. lol. saved it, fixed it, sold it. half the jet man. unless u want it like that.

[FASTOYS]

I thought 145 or 147.5 was stock size and you have a pipe??!

[Colorado Red]

Ok...I ran with the 142.5 this weekend...and needle on the middle I think it was. It ran pretty well in the garage, and started out dencent on the trail (a friend was riding it). At the first fairly big hill, it just flat out wouldn't climb! No popping or anything, just no power. This was at about 8500 feet. So, almost went back to the truck, but decided to go for it and ride a while longer.

After almost an hour of riding (slowly)...here comes my friend almost passing me. We stop, and its running like a champ! Not tons of power, but decent for a Warrior. The whole rest of the ride, it ran great. I'm guessing it was an electrical issue.

Now I don't know if I should just sell it off to the guy that wanted it...or ride it a few more times, just in case it starts acting up again (don't want to screw anyone over on the sale).

Anyway, its running pretty well....a touch rich right now, but I might just leave it alone unless it starts fouling plugs.

-Mike