34mm keihen pj problem

[Devilman910]

Ok so i blew a piston about 9 months ago then deployed to afghanistan i drained my fuel tank and stored my quad while i was gone i just got back replaced the piston then started the quad and it ran fine until i hit the throttle then it would bog down bad and die so i pulled the carb off and cleaned it with carb cleaner i took it out for a ride today and with the throttle open all the way it barely moves it will go but just not as fast as a blaster should it felt like i was riding a chinese quad any ideas

 

[sicivicdude]

leak down test results?

 

[super noober]

did u take it all apart and clean every passage and the jets REALLY good? or just a quickie spray out with cleaner?

 

[blasterdemon7]

Did you put the piston in the correct way? I would see what you have with a compression test .

 

[Devilman910]

Yeah piston is in the right way, And i completely took apart the carb cleaned jets and everything, no air leaks

 

[Devilman910]

And i put in a new spark plug

 

[blasterdemon7]

Did you check your pipe for a mouse nest. You did have it sitting for a long time.

 

[mud runner]

is it leaking gas out of the carb

 

[Devilman910]

I have a spark arrestor on it with a screen covering the muffler, when i first put fuel back in it it poured out of the over flow then i taped the carb and it stopped pouring out. I started it afterward and then it was bogging down real bad so i cleaned the carb put it back on then it poured out for a second then stopped n its own

 

[mud runner]

sounds like your float is getting stuck open

 

[Devilman910]

Well it has only done it those two times and none since

 

[Devilman910]

Should the reeds be cleaned to?

 

[mjgnslngr]

It's a possibility that with that overflowing, it may have stopped but your float may be out of level so it's causing a bog. Might be worth checking float height and needle tip n seat. Worth a shot. Can't hurt to check/clean reeds while the carb is off. Possiblely while sitting the dried and became brittle.

 

[Blaaster]

Did you find out what caused the piston to blow before you replaced it?

Did you do a leak down test after the rebuild?

Did you do heat cycles before you rode it?

 

[Devilman910]

Wel the piston was completely my fault i took it to some trails in a higher elevation and cooler area i got on it a little to hard before it warmed up and blew the piston, i reset the float and put in a new needle now it works great i appreciate all on everyones help

 

[89blaster89]

so it was just ran lean......

 

[Devilman910]

Yeah, took it for a short ride just now and i could tell an immediate difference in first gear

 

[Blaaster]

Time now for a plug chop to see if it is really OK.

 

[Devilman910]

Good idea I will have to wait until tomorrow though I live on base and the MPs are assholes about people riding quads on base I am going out in the desert tomorrow so I will do it then

 

[mjgnslngr]

Glad you figured it out! I've heard those PJs are a biotch to dial in.