syc 250cc buggy (no spark)
 

well got a chance to mess with it today, has plenty compression, fuel flow, but I don't think it's firing. pulled the spark plug, it's new. turned it over and layed the plug up against the frame, didn't see a spark. It's a Syc powersports engine. got any idea's. Thanks Joe

I think I got a decent deal on it. $250.00

not sure how to check the coil.

:evil:
1st off do the same test w/ the plug grounded on the motor in case the frame isnt giving you good ground, if the surface of the frame is painted that would give you a false reading. second make sure you have good battery power, this 250 is DC wired meaning the cdi is powered by the Batt and not the flywheels AC power like on older 150s. if you know the plug is good then the next thing would be the coil. even before i had a shop i kept spares in my tool box to quickly diagnose if a coil was bad instead of messing around with ohm settings on my multimeter. check the plug boot that the tip of the plug isnt loose and the wire is screwed in to both the boot and the coil. cdi's usually show signs of miss firing before it would a no spark issue but not to say it cant be a cause. if you can verify these components are good, then the stator/pickup may be next. remember to check all of your grounds. a motor can be perfectly grounded but if the stator ground is not grounded that could cause no spark......hope this helps.

The head is a SYC Powersports ported and polished head not the engine. You can give me a call and I can give you all the specs to check to determine your spark issue. 662-301-1563

:evil:
ah heck tom, i thought you had an engine factory and was ready to give you a call......hahahahahaha

Well we can build them now . I have several 150's still out there but have only done one 250 for a customer which he still owns.

may have found the problem, cdi box is busted.

That can very well be your problem if moisture got inside. I just wonder what cracked it. I seen one crack from blowing internally. Look at the epoxy to see if there is any blistering.

It was mounted down under the cart, and was used for dirt track racing.

I had a dealer in Georgia who was selling my heads several years ago.

I want a SYC BBK 150, just what would it cost???

It would depend on what you want in it. Give me a call 662-301-1563

new cdi box and she running great, still have some work to do on the Ninja Dog.