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Pop off test

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Installed cheap kits on 93xp carbs kept dribbling on mag carb so bought genuine kits now pop off. Went up to 29 30 but carbs back on cant quit get it to idle smooth. At idle tack goes up 2000 and back down keeps doing it what is wrong is pop off to high or something else. Dose it matter which carb you try to set first. Low one book says 1 1/2 out one saus 1 1/4 out did carbs on 94 xp runs great iam puzzled
 
Do you think i have a air leak if i rev it up to 5000 rpms it comes back down to idle real slow it used to come back down fast any help
 
It sounds like an air leak or you have them set too lean.

Set them to what the manual says, make sure you have genuine mikuni kits and new needle and seats in the correct size with the correct springs.
 
Sometimes, if the lean condition is JUST right, your engine can run away on you. It'll increase the RPM to like 8000 and you won't be able to shut it off w/ the button or pulling plug wires. The best way to stop this is to open the throttle. This floods it with cool air and stops the auto-ignition process. Press the Stop switch too, as this will kill your ignition, or it'll just start right back up. First time that happened to me, I 'bout crapped myself. Ski was not hooked up to a hose, and I had no idea what to do. Pulled plug wires, no effect, ripped the fuel hose off, no effect (right away), then slowly, after like 30 seconds, it consumed all the fuel in the carbs and finally quit. I thought it was going to blow up!
 
Just pull the choke when it runs away. It'll flood it out and die quickly.

Chester
 
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