got a new 125

[justin1022]

i just picked up a yz 125 it was fairly cheap for the year it is its a 2000. i payed 1000. but it has this weird sputter unless your in powerband. also i dont no were the idal screw is can someone help me out with this?

[exrider12]

Change the spark plug, clean the air filter, put in some fesh 32:1 and it should rip.

[exrider12]

Change the spark plug, clean the air filter, put in some fesh 32:1 and it should rip.

[extremeblastr]

Originally posted by exrider12
Change the spark plug, clean the air filter, put in some fesh 32:1 and it should rip.

this first, if that doesn't fix it i'm thinking its in need of a rebuild

[UNBROKEN]

Originally posted by justin1022
i just picked up a yz 125 it was fairly cheap for the year it is its a 2000. i payed 1000. but it has this weird sputter unless your in powerband. also i dont no were the idal screw is can someone help me out with this?

it sounds like ure tring to describe that the bike is surging which indicates a lean condishion , i would drop the clip on the needle to raise it that will give u more fuel , and its not a bad idea to make sure there isnt any leaks and clean the carb while ure there

[justin1022]

ok it runs alright when your in pwoer badn but it runs terable when your not in power band. the guy told me the needle is allthe way down so i will have to raise it and he isnt to smart because the throttle cable is all the way in the carb so it wont idal.

[exrider12]

Do what I said. It will cure the problem.;)

[reptikes]

Originally posted by justin1022
i just picked up a yz 125

Sorry to hear that, you have my condolence. :ermm:

[justin1022]

Originally posted by exrider12
Do what I said. It will cure the problem.;)

it has that. the guy put a new spark plug and i put new gas ixed 30:1 and the iar filters clean.

[exrider12]

I would still change the plug. He could have lied and the bike symptoms sound like a fouled plug.

[justin1022]

hmmm ill have to check it in a bit. i was riding it like a hour ago and it goes good ontop but if you try and go under half it sputters worse then ever.

[exrider12]

Spark plug or its a 2 stroke lol

[justin1022]

ha. well i dont no im gona go mess with it right now. somthings weird because it seems easier to kick then my old cr85 i had when i was 10 ha.

[justin1022]

do you happen toknow whatthe compression should be when i test it?

[exrider12]

I think it should be between 170-190? Someone may be to correct me but I think thats it.