Jump to content

Got Air, Fuel And A Spark...not Starting


Recommended Posts

It happened last week, I was riding along cutting donuts and the shee just bogged and died. Nothing unusal happened when it died, no weird noises or actions, just quit. I tried kicking it over about 20 times and still nothing. Went home, changed the plugs(old plugs didn't look that bad), cleaned the carbs, cleaned my air filter, kicked it over, still nothing. Pulled the plug, stuck it in the coil wire, checked for spark and saw one. This is what has me boggled. I have the three elements to make it run, but it still won't fire! :angry: When I had the carbs off I took a gander at the reeds, none were broken, maybe a little worn but nothing major. They still seated well on the cages. Compression seems good, I plan to check it sometime this week anyways just to be sure. Carbs are clean, slides are in sync and facing the right way, choke tube in place, air filter is clean, new plugs, and I got spark....Could it be a "weak" spark that's keeping it from starting? I was thinking maybe the stator but wanted your opinions before I go tearing into it...maybe there is something I might be missing or forgetting...Anyhow, any help is GREATLY appreciated, all thoughts are welcome!! Thank YOU!!!

Link to comment
Share on other sites

what about your float bowls. have you tried spraying ether through the air intake to verify if it's getting fuel or not, that will rule that out.

 

You need to check the compression, kicking over cylinders @ 98 lbs. will feel similar to kicking over 130 lbs. A gauge is the only way to tell.

Link to comment
Share on other sites

Float bowls are good and I sprayed some carb cleaner in through the choke tube and still not starting. I pulled the plugs after trying to kick it over a few times to see if the plugs were wet and they were damp and smelled of gas...so fuel is getting to the combustion chamber. I guess I'll check the compression ASAP, but something tells me it just might be something else...Only reason I think so, and I may be very wrong, but why would it start on the first kick and run great, then two hours later it dies and will not fire at all? Could the compression drop that fast? I really appreciate the help I'm getting, any more is GREATLY appreciated!! Thanks!!

Link to comment
Share on other sites

You most likely over heated the engine and sucked a gasket or seal. Try a leak down test and compression test to be sure you didn't vent a piston.

Link to comment
Share on other sites

It should be starting with 30 pilots, what if you tried holding the throttle open some during the kick. Maybe try some 25 pilots. How dirty is your air filter. Maybe try removing the filter for a kick or two just to see if shee'll start, if your in a fairly clean place.

 

Above all, check your compression if you don't know the numbers, at least you can rule that out. Low compression can cause it to start some and then not start, it makes for very hard starting.

Link to comment
Share on other sites

You most likely over heated the engine and sucked a gasket or seal. Try a leak down test and compression test to be sure you didn't vent a piston.

When it died the temp was 170...doesn't overheating start at 200-220?

 

what if you tried holding the throttle open some during the kick. Maybe try some 25 pilots. How dirty is your air filter. Maybe try removing the filter for a kick or two just to see if shee'll start, if your in a fairly clean place

I tried that too and still no luck :( I used to have 25 pilots and it would not start at all until I raised them up to 30 and then it started perfectly. I'll try and grab a compression tester tonight and see what I find. Would it be safe to rule out the stator? Thank you all VERY much for the help!!

Edited by bigboybanshee
Link to comment
Share on other sites

It would not be safe to rule out the stator. Weak spark could be the culprit....... Even if you did smoke a piston, the bike should fire up on one cylinder... Mine always did..... I doubt you smoked both sides at once...... I am thinking either coil, or stator.... You could also have a loose connection as well.... Or a bare wire shorting out on the frame dropping your coil voltage......

Link to comment
Share on other sites

That's what I'm beginning to think as well boonman. I got a compression tester yesterday for the hell of it, gonna try it tonight. Also got some electrical component cleaner to get all the dirt and grime off the CDI, coil, and wiring so I can check for any breaks or weak points in the harness. Gotta snag me an ohm meter to test that stator...when this all started that was my first gut feeling of what the problem is...Anyhow, THANK YOU ALL for the replies, after I get the compression and electrical components tested I'll let you know where I stand; hopefully running ;)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...