Raptor 350 carb on warrior need help ASAP!!!

[88WarriorBoy]

yeah dude in my experience if the crankcase is overfilled they run like crap

 

[Otto7668]

I dunno if I'm being paranoid but now i feel like its making a weird noise...I adjusted the valves and it has plenty of power and runs great..it's like a metal on metal vibration when it revs high..should I worry about this? Doesn't smoke or knock or anything like that

 

[YAMAHAULER]

what did you set the valve lash at?

 

[YAMAHAULER]

is the noise coming from the top of the head?

 

[YAMAHAULER]

Also check all the motor mounts and bolts to make sure none are loose or the comonly broken ones under the tank

 

[Otto7668]

Sorry I adjusted the valves after I discovered the noise..intake is .076mm and exhaust is .178mm and I can't really tell where the noise is coming from..timing chain is very tight also

 

[YAMAHAULER]

set the valves at .004 intake .006 Exhaust you can also go .004 on both safely and that will get rid of almost all valve noise which is very common with these warriors
Does it have a stock cam?

 

[Otto7668]

Yea all stock

 

[YAMAHAULER]

ok set them at the tighter side anywhere from .004 to .006 or both at .004

and check the 2 upper motor mounts under the gas tank they tend to break and would cause the noise your hearing at higher rpm's if that ain't it then we can venture further

 

[Otto7668]

So these correct?

 

[YAMAHAULER]

yep! the stock valve lash is a little too much thats why there is so much rocker to cam slap or tic so setting them closer to the tighter side helps with most of the noise

 

[Otto7668]

Ok thank you! Now I got something to do after work tomorrow...working on this thing is better than dealing with inmates all day ill tell you that much lol

 

[Otto7668]

Quick question on the new carb I got yesterday, there is a fitting opposite of the air vent fitting that wasn't on my old carb? No idea what's it for any ideas? On my old carb there's nothing in that spot

 

[YAMAHAULER]

a pic would help

 

[Otto7668]

This thing...sorry for the crappy pic only one I could find online

 

[YAMAHAULER]

that a Raptor 350 carb ? cause my 02 warrior only has the left side one and has a spot on the right side but it was never machined for the nipple.
I'm assuming it's just another vent like the other side but someone with a Raptor 350 will have to chime in

 

[Otto7668]

No warrior carb I got this instead of the raptor carb...exactly the same as my old carb minus that fitting

 

[YAMAHAULER]

looks identical to a warrior carb but I looked in the Clymer manual and all the carbs from 87-04 only have the 1 vent tube coming off the left side

 

[YAMAHAULER]

It's almost like someone added another vent to it don't know what to tell you man stick a hose on it just like the left side

 

[88WarriorBoy]

mine has two vents like that