Wont start

[hondaman23]

its gettin fuel and spark but will not start. it sounds like it wants to but wont.even though ur not suppose to giv it gas when u do it seems closer to starting and help is appreciated

[Holy Kaw!]

Check the main ground wire coming off the battery thats hooked onto the frame back behind the crankcase.

Also check the roll over sensor located under the hood it says ''upper'' on it. May have jiggled loose while riding.

Possibly not getting enough air?

Try charging the battery on a battery tender and see what ya get also.

[hondaman23]

its not any of the sensors i cheked all of them

[bimcgo1]

put your hand over exhaust while you crank it to see if its sucking in or blowing out

[hondaman23]

sucking in

[bimcgo1]

prob need new rings,piston

[Holy Kaw!]

Do a compression test.

Stock piston (12.1) should be around 60 psi.

You mentioned you checked every sensor. Just to make sure did you check the input/output voltage on your Throttle Position Sensor??

It may be getting gas as you mentioned but it may not be getting enough gas OR too much gas flooding the spark plug.

[hondaman23]

didnt check the voltage but im goin to and ya ithink its mapped wrong

[Holy Kaw!]

Okay, yeah it might just need a new map then never thought of that..

[hondaman23]

i have a balwin pipe and hot cams 2 where would i find a map for it

[JParisi48]

hey man did u do anything else to the quad? is the lid on or off??? its def not the roll over cuz i zip tied it upright. i just cant think of anything else....text me and let me know if u get it fixed and what was wrong with it. i also dont think its the mapping, cuz it ran mint, never popped and it didnt run hot as long as the lid was on.

[bimcgo1]

Did you ever figure out what was wrong,why it won't start

[hondaman23]

not yet waitin for the guy to com over and map it correctly then i will go from there

[Hetrick Racing]

Did you get it??
Call the shop I cant type all of the tests to get you runnin
ask for Rich

[bigbad400]

Originally posted by Holy Kaw!
Do a compression test.

Stock piston (12.1) should be around 60 psi.

You mentioned you checked every sensor. Just to make sure did you check the input/output voltage on your Throttle Position Sensor??

It may be getting gas as you mentioned but it may not be getting enough gas OR too much gas flooding the spark plug.



ANY PISTON ON ANY MACHINE 12:1 OR NOT SHOULD READ 110 PSI ON A COMPRESSION TESTER. 60PSI IS A SLOPPY MOTOR ON ITS LAST LEG ABOUT TO BLOW UP. ESPECIALLY THE HIGHER THE COMPRESSION THE HIGHER THE COMPRESSION TESTER WILL READ... DUH. YOUR CAR FOR EXAMPLE IS PROLLY 9.5:1 COMPRESSION AND HAS 90 OR BETTER ON ANY CYLINDR

[ds19]

We had this problem with our kawi 450. It would't start but would just crank. We adjusted the valves and still nothing. We decided to just put a kick start on it and know it starts like 2nd or 3rd kick. Still wont start with the electric starter but we don't care anymore since we have the kicker.

[MtnEX]

Originally posted by bigbad400
ANY PISTON ON ANY MACHINE 12:1 OR NOT SHOULD READ 110 PSI ON A COMPRESSION TESTER. 60PSI IS A SLOPPY MOTOR ON ITS LAST LEG ABOUT TO BLOW UP. ESPECIALLY THE HIGHER THE COMPRESSION THE HIGHER THE COMPRESSION TESTER WILL READ... DUH. YOUR CAR FOR EXAMPLE IS PROLLY 9.5:1 COMPRESSION AND HAS 90 OR BETTER ON ANY CYLINDR

You need to know what you are talking about before you start just typing in threads.

60 PSI is just fine in a KFX motor.

For the record, mine had 65 PSI cold right after break-in... and still does.