Any tips on adjusting/tuning the carb.

It running very poor at idle and 1/4 throttle. Lots of popping.

Could it be bad fuel?

Where should I start the screws?

Are there any good illustrations out there?


Thanks

 

Instead of messing with jet screws, trying either lowering the clip on the needle jets or replacing with richer ones. That's because your quad sounds like it's running lean between the idle and 1/4 throttle. That's exactly where the needle jets come into play an important role.

 

Im not much of a carb man.. But I just joined a forum called www.kawiking.com

I stole my username from it hahaha but im a member, post your question on there maybe u will get some help.

good luck!

 

A couple questions first. Did you just get the P700? If not has it always had this problem? Have you cleaned the carbs? What I am getting at is you don't want to try to adjust the carbs on a bike that ran fine before. Carbs don't just get out of adjustment unless you make major altitude changes.

 

I removed all the old fuel and replaced with fresh. It ran a little better at idle but still was giving me a hard time.

Im a little frustrated because the bike was running well until I took it to the dealer for my recal.

It didnt seem to have any power.

The only mods are HMF exhaust. Ive been plowing all winter with the silent core in place. The weekend before I took it to the shop I was down at my camp and took the silent core out and it was running very well. When I intsalled the HMF, I replaced the jets as recomened by HMF.

Its been running great for the last year until now.

Could it be as simple as dirty carb? Could it be the belt (no power)?

Is there a fuel filter inline with the carb that could be dirty?

Thanks

 

Check the simple stuff before you go adjusting. Yes the carbs could be dirty or have water in the gas, air filter clogged (mouse nest in it?), spark plugs fouled. I would drop the bowls on the carbs and see if there was dirt or water in them first.

 

After taking hitman's advice (if the bike has been running fine its probably not a carb adjustment) I determined the problem.

I was actually only running on one cylinder. I had a bad plug.

I fired the bike up for about 30 seconds and put my hand on the front header. It was very hot. The rear header was still cold. Of course its going to be the more difficult location.

Changed the plug and we are back in business.

It blows my mind that it was a plug. I only have 150 hours on it.

 

I have gone through several plugs as well?? (4 as of this weekend with 125 hours on machine) Have same symptoms as you had! What a pain in the butt to change when you're out on the trail!
My plugs weren't fouled, they just quit working? They are the NGK factory plugs.
Are these plugs very "gap" sensitive? If gap gets to wide would that cause this?
Got the plugs changed then it started acting up at about 2/3 throttle.
Going down a level flat road, not much load at about 30 MPH. Ease on the gas to go a bit faster and it dies (coughs) then picks back up. Hammer it hard then it goes but still sputters a bit? Seems to be really lacking power, tops out at 41MPH at 5900ft.

Anyone got any ideas what to do to try and fix it?

Thanks