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   Author  Topic: Citation ls diagnosis  (Read 364 times)
70Oly399
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Citation ls diagnosis
« on: January 8, 2017, 06:14:07 AM »
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Been having some issues with my sons sled. So here's some background and symptoms of what it's doing. We got it out of storage a few weeks ago and it was running rough so I cleaned the carb. After that it ran fine and he rode it for a few hours. Over Christmas week he was riding and it quit.  It was low on fuel so I figured it ran it out. After filling it up it would start if I primed it but wouldn't stay running. I figured he sucked up some junk when it ran out of gas so I cleaned the carb again and changed the fuel filter as it had a lot of crap in it. Well it still won't run after all that. It will start and idle if I prime it but won't take any throttle and stalls as soon as I try to rev it at all. I'm leaning toward crank seals as it looks wet behind the primary clutch. Any ideas?
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VSDPS
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Re:Citation ls diagnosis
« Reply #1 on: January 8, 2017, 06:38:24 AM »
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If it's wet behind the clutch then it's likely crank seal, loss of vacuum to the fuel pump and unable to pump enough fuel. Second guess would be the fuel pump itself needs rebuilding.
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Re:Citation ls diagnosis
« Reply #2 on: January 8, 2017, 08:50:29 AM »
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What you describe and wet behind primary, sure would suspect crank seal.
Bones
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70Oly399
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Re:Citation ls diagnosis
« Reply #3 on: January 8, 2017, 03:31:28 PM »
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That's what I was thinking. Took the clutch guard off and it's oily inside from the clutch slinging it around. I disconnected the fuel line to the carb and the pump is working when I pull the recoil.
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1970TNT
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Re:Citation ls diagnosis
« Reply #4 on: January 9, 2017, 09:29:47 AM »
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BLOW OUT YOUR GAS SUPPLY LINE. IT MAY JUST HAVE SOMETHING IN IT????
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70Oly399
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Re:Citation ls diagnosis
« Reply #5 on: January 9, 2017, 06:06:30 PM »
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Thanks Joe and yep we blew out the supply line when we changed the fuel filter. Tank shouldn't have much debris in it. We had to clean it and shop vac out all the pieces of the old fuel line two years ago.
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