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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through November 06, 2011 » 99 Cyclone running like shit... help « Previous Next »

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Wseaver5001
Posted on Sunday, July 24, 2011 - 12:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ive got a 1999 Cyclone that ive owned now for about two months. Up until last week the bike ran flawless, my first buell and i love it! Last week i went riding up in the mountians and the bike began to miss like hell, stalled on me a few times and didnt want to start. It has slowly gotten worse and at this point isnt rideable. Its having trouble starting now and when it does its running like shit. Seems like a ignition problem but when i check its got good spark. Ive drained the tank, check the filter, cleaned the carb, and checked the batt voltage. No luck yet. What you guys think? Cam sensor? Kick stand switch? Any help would be great. Thanks
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Buell_bert
Posted on Sunday, July 24, 2011 - 01:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Make sure the wires to the coil are on tight and firm. I've had them just slightly loose and caused all sorts of trouble. They are after all just pushed on so give them a bit of a crimp.
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Wseaver5001
Posted on Sunday, July 24, 2011 - 12:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok ill double check them. I did wiggle them yesterday and they were on there pretty good.
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Wseaver5001
Posted on Sunday, July 24, 2011 - 01:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok double checked the coil wires. Ground is on there good but the positive although on there was quite loose. Ill tighetn it up and get back with you. Thanks for the tip.
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Wseaver5001
Posted on Sunday, July 24, 2011 - 08:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

ok so the coil wires are tight and the bike is still missing and stalling... Its running like shit! It sounds like the timing is wayyyy off...
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Blake
Posted on Monday, July 25, 2011 - 11:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Does it run okay when you pull in the clutch lever? That would indicate kickstand safety switch.

Check ground strap integrity.
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Wseaver5001
Posted on Monday, July 25, 2011 - 12:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Nope it doesnt change a thing. Im thinking that i have a bad ignition rotor/cam sensor. Has anyone ever had come loose and turn on its own. It seriously sounds like a v8 with the distributor way off...
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Buell_bert
Posted on Monday, July 25, 2011 - 01:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is the headlight flickering and is or does the voltage remain constant? Grounding or volt regulation while running?
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Buell_bert
Posted on Monday, July 25, 2011 - 01:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I don't like the fact it SLOWLY got worse.
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Wseaver5001
Posted on Monday, July 25, 2011 - 02:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The headlight stays on and has never gone out. Id test the voltage while running if i could keep it running that long.... The only way i can get it to run is to hold it about half throttle with full choke. And it wont come close to idling.

(Message edited by wseaver5001 on July 25, 2011)
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Harleyelf
Posted on Monday, July 25, 2011 - 10:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You're on the right track suspecting the cam position sensor. Try removing both plugs and rotating the engine with the transmission in high gear by turning the rear wheel. If you have several weak sparks per revolution, your cam position sensor has failed. Drill the rivets out, undo the screws holding the cover plate on, and smell for burning semiconductors.
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Wseaver5001
Posted on Tuesday, July 26, 2011 - 01:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I gave it a try. Lifted it up put it in 5th and after about 10 turns of the back wheel not a single spark. As soon as a hit the starter i get a almost constant spark from both plugs...Any other tests i can try?
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Harleyelf
Posted on Tuesday, July 26, 2011 - 02:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Uh, you did ground the plugs and turn the ignition on while turning the wheel, right? That "almost constant" sparking is way more than once each per rev - which means the cam position sensor is dead or dying. I use an aftermarket XL sensor and trigger rotor now.
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Wseaver5001
Posted on Tuesday, July 26, 2011 - 02:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Lol yes i grounded the plugs, key on and switch to run. Im gonna go ahead and change it. What's the advantage of the aftermarket unit? Where do i get one? Thanks harley.....

(Message edited by wseaver5001 on July 26, 2011)
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