help me please.. mystery electrical problem.. 2009 arctic cat f570

[tntsmallmotor]

IM on here again... Nobody can figure out my problem.. Sled is a 2009 F570.. Sled idles great, soon as I touch throttle I lose spark and it dies.. I know it's not a carb issue, I keep getting told it's the TSS but it seems to test great, it is a closed circuit when ur off throttle and soon as u touch throttle u break the circuit... That's is what mine is doing... I have also changed the coil, no change... What am I missing? I know it's spark cause I run a spark tester from my coil wire to plug and it Sparks great until u touch throttle and u lose all spark.. Is there any chance it could be messed up in CDI box.. Where can a Guy see wiring diagram? Thanks for all the help guys.. Cheers

 

[jjack]

its the tss switch if it changes from close to open that's how it kills he spark if the the tottle stick

 

[TROLLCAT]

me thinks , the thumb lever have any play can't have noplay there is a safety switch there to

three switchs one on each carb and one on the thumb lever here is where the problem lays take a deep breath and you will figger it out

did not lose a magnet in the slide of the carb when you had them apart ??

 

[tntsmallmotor]

So the tss switch should be closed.circuit when ur off and on the throttle??? Can I jump that switch.just.for.testing?

 

[DDrake]

It sounds like the TSS to me as well. I found out the hard way a couple yrs ago when we towed my wifes sled 2 miles across a field through 3' of snow. Flipper got broke off and it would idle all day but touch throttle and it would die. I don't know how you would bypass it to check it.

 

[fj40]

I had the same issue on a 2009 bearcat.
Try holding the throttle fipper tight to the pivot point and rev it up.
See if this works.
How I by-passed the throttle switch was put a nail in the pivot point.
Not the safest but got us going.

 

[jjack]

unplug the switch at the top of the steering coulum and it should stop the problem,if that works change the tss. not safe to run with it unpluged

 

[jjack]

If its not fue injected if should normally be a open all the time,so to test just unplug it at the steering colum and it should run, make sure your throttle cable isn't stuck before trying it.Its called a tss for a reson.If its fuel injected there should be a bypass plug in your tool kit

 

[tntsmallmotor]

No its not fuel injected but jjack ur on the same page, so i unplugged it and i still lose spark when i hit throttle, im thinking it is not the safetys, im wondering if it is stator problem possibly, or pick up, a new cdi box is 500 bucks so just not sure where to try next....