i have a kawisaki 98 125cc why is the plug fole?

Question

how or where do I tune carb

Answer 1

2 stroke bikes fowl spark plugs for two reasons -
There's to much oil mixed in the fuel or the compression is to low to fully ignite the fuel/oil premix.
Since your bike has some years on it, I'll guess that your problem is the compression. 2 stroke dirt bikes need their piston & rings changed every 2 seasons - max.
You should need a firm kick to kick start it. Otherwise the top end (piston/rings/cylinder) will need to be rebuilt. If you've never had to top end rebuilt, DO IT NOW!!! before you do any major damage.

Answer 2

Ill assume this is a KX-125, Most of the time this is from too much oil in the fuel, mix your gas at around 32;1 to 40;1 and use a good quality oil I would use Kawasaki racing 2 stroke oil. Next likely would be a dirty or over oiled air filter, clean or replace if nessasary . Low compression is also a possibility, to determin this do a compression test, with the throttle at wide open you should get around 160 lbs in about 5or 6 kicks, any lower than that and you should rebuild the top end. Dont wait till it blows thats a nickacil cylinder and it cant be bored (resurfaced)

Answer 3

Plugs foul do to not burning the fuel properly. Check the gap on your plugs and if you have a choke make sure it is not slightly engaged, this will cause your bike to run rich and foul plugs.
Also, clean your carb and use some fresh gas.

Answer 4

Foul plug? Try a hotter plug. Ask any dealer which one. Also use the best, freshest gas you can.

Answer 5

its a dirtbike right,...its kinda hard to see, but there, a screw that would need a flat head, look the tank,. then just play with it till u get that sweet sound, i hope i helped