Help

[greeny250sx]

allright did a plug..its dry..and black..i bumped up on the main jet again..its getting better..but i ran outta jets..gotta go to the shop and get some bigger ones..but at the moment the engine is outta the bike..i did this 2 hours ago..
i am gonna do a compression test on it and i couldnt fix the tester in..it should need a fresh piston and rings..hell it is a 00 and stock piston..
thanks for the help

[greeny250sx]

allright did sparkplug..it was carbon black..but dry?

my dads going to this shop tom to get me some bigger jets..

[fletchman919]

Originally Posted by greeny250sx

allright did sparkplug..it was carbon black..but dry?

my dads going to this shop tom to get me some bigger jets..

If it's black, that means it's already getting too much fuel. You need to get a smaller main jet.

[MX86]

you want a more of a tan...

[greeny250sx]

that makes NO sense..if it was getting to much the plug would be WET
its dead dry
but black?

maybe rings are going?

[greeny250sx]

also i went small and that made the problem worse

[MX86]

what plug are you running NGK or Champion?

[greeny250sx]

i only run NKG

[MX86]

okay.. i've learned that this works better then look at the color of the plug.. works better with NGK for some reason..

http://forums.everything2stroke.com/...f?d=1147400070 < plug diagram. as long as you stay more toward red/blueish you'll be fine.. go the other way and you'll start to run into problems. just to give ya a reference point

what's the main jet (size)
what's the pilot jet (number on side)
how many turns is your air screw out?
what oil do you run
what octane gas
and at what ratio is it mixed at?

[greeny250sx]

main jet is currently 175.. i dont know pilot..or air screw..i run ELF oil..93 octane and 32 to 1 mix