getting gas,got spark and compression but no go

sm300z · #1 (**permalink**) 10-08-2005

i have rec rebuild the entire bottom end of a 1998 kx 250,,new crank bearings ,seals, piston, rings, jug, reeds, and heres my prob

i am getting fire,,i can see the spark when i hold it to the frame and crank

i am getting gas on the bottom of the plug,i see its wet when i pull it out
i have tried new plugs..

i have compression b/c my freakin bottom of my boot and heel are taking the beatin..

i am at a loss,,and yes the piston is in the correct way..

what am i missing..I am not hooking up the water lines to the jug and the head yet,,waiting to fill it with water wetter ..but i want to hear it fire first..

WILL IT FIRE WITH THE WATER LINES OFF???JUST ASKIN

sblt500r · #2 (**permalink**) 10-08-2005

yes it will fire with the water lines off. theres no safety switches on them. make sure the timing is correct. and the flywheel key is not sheared.

sm300z · #3 (**permalink**) 10-08-2005

yep checked the timing mark and it directly in the middle of the three diff marks

what else could it be?

lemme ask you something stupid...when you check compreesion on the bike,,you have to kick it like three to for times to get a good reading, Correct?

sblt500r · #4 (**permalink**) 10-08-2005

yes you have to kick it a few times, why you must have doubts about your compresion then? you might just be oil fouling the plug with the extra oil used in assembly.

sm300z · #5 (**permalink**) 10-08-2005

i was kinda thinking that,,

what about carb cleaner sprayed through the back side of the carb, thru the filter port?

This might sound weird but it seems as though its burning a very small amount,,

b/c after i kick it light ten times with the choak on i can kinda smell that wonderful maxi oil smell,, like it tryin to

think i ought to move my timing mark one way or the other?

sblt500r · #6 (**permalink**) 10-08-2005

i think thats your problem. your flooding it. you shouldn't have to kick it ten times with the choke on. try jump starting it. pull it behind a car and try that.

sm300z · #7 (**permalink**) 10-09-2005

BOYYYYY the last time i tried it behind a car,,the chain pulled the handle bars sideway,,bitch to hang on and keep it straing ....any good sugg on pulling it,,do you use a chain or rope around both fork tubes? AND HANG ON FUR THE RIDE

sm300z · #8 (**permalink**) 10-09-2005

well i moved the timing around and got a backfire..now i was tryin to fine tune her and get the correct timing but is it possible that i may have to go past the three marks and advanced the hell out of it? i got a backfire when it was retarded not advanced??

sblt500r · #9 (**permalink**) 10-09-2005

are you sure the flywheel key is okay?

yeah its a bitch trying to hold on while being pulled by a car. you have to put the rope around the forks and have your buddy go slow. and hang on.

369DuneBunny · #10 (**permalink**) 10-09-2005

lace a tie down or tow strap through both forks. you should only have to go 5 mph. i have to pull 370's ass on his T4 all the stinkin' time. if you're backfiring i really suggest taking your motor apart again. how much seat time do you have? dropping a skirt is no good. . .

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