** HELP! -Need wiring diagram for '81 Skidoo Citation 4500 - Snowmobile Forum: Your #1 Snowmobile Forum
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post #1 of 9 (permalink) Old 12-22-2005, 04:25 PM Thread Starter
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** HELP! -Need wiring diagram for '81 Skidoo Citation 4500

My 1981 Ski-doo Citation 4500 has lots of spark and just cleaned carb, so gas is flowing too. I still can't get her to fire up though. I think the prob is in the wiring, kill switch or key switch??

I can't find a wiring schematic ANYWHERE!! I need someone's help please! If anyone has this info, can you please contact me to possibly email me the diagrams, etc? I would be MOST appreciative!!

So much snow... and my sled is up on blocks! This just isn't right... it's almost CRIMINAL!
Thanking you in advance for any and all input!

MERRY CHRISTMAS EVERYONE!
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post #2 of 9 (permalink) Old 12-22-2005, 04:32 PM
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If it has lots of spark, it's NOT a wiring problem. How do you know it has spark, did you use the proper tester to see?

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post #3 of 9 (permalink) Old 12-22-2005, 04:44 PM Thread Starter
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Yes!
Used plug tester, and also did it the old fashioned way by laying the plug on engine (while in its wire/cap) to observe spark visually while pulling on cord to start.
Spark not the issue, rather I THINK perhaps problem with my key/ignition switch or kill switch?
Could be carb still, but... Im just frustrated right now and reaching for answers.
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post #4 of 9 (permalink) Old 12-22-2005, 04:50 PM Thread Starter
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I just picked up this sled a week and a half ago. It ran fine then.
Took her out last Thursday during big wet snowstorm, and she was just screaming! Then all of a sudden, as I turned a corner into some soft snow, she just bogged right down and struggled to run at all until it just died right there.
I figured I took in some heavy wet snow in a place that wasn't intended, and perhaps that resulted in gas/water mixup or that water/snow got in or on my electrical components in a place that was not intended to get wet.
Regardless, I have spent the last week trying to get it running again. It will "try" sometimes to start, but never gets over that hump to fire up.
*** NOTE: I have noticed a large air bubble (about an inch long) in my main fuel line going to the carb.... Please don't consider me an idiot if this is the problem! It seems out of reach of the carb so I didn't think it was an issue. I tried to bleed it out, but can't seem to get rid of it.
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post #5 of 9 (permalink) Old 12-22-2005, 06:04 PM
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Pull the lines off the carbs and pull it over. Fuel should "pulse" out of the lines like 6 inches or so. If not, it's a fuel problem. Make sure the vacuum hose from the engine to the fuel pump isn't cracked also.

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post #6 of 9 (permalink) Old 12-29-2005, 01:56 PM
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I have the manual for 1980, since i have the citation SS. Supposedly, nothing changed during these two years. Lemme know, I can scan them up for you.
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post #7 of 9 (permalink) Old 01-11-2006, 06:56 PM
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Quote:
Originally posted by smallengineguy
Pull the lines off the carbs and pull it over. Fuel should "pulse" out of the lines like 6 inches or so. If not, it's a fuel problem. Make sure the vacuum hose from the engine to the fuel pump isn't cracked also.
I had an '85 Citation and an '85 Tundra. My fuel pump gave out on both of them and died simiilar to the way yours did. I traced the problem by doing what was suggested above. If you prime the carb will it start?

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post #8 of 9 (permalink) Old 01-19-2006, 06:35 PM
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if you have spark it cant be the wiring, i think it would be more in the carborator i would go down to a local shop and buy a carb rebuild kit.
try that
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post #9 of 9 (permalink) Old 01-26-2006, 08:26 PM
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Smile

i have same sled on mine it has a "hill climb kit" i think thats what there called it is a red cap on the "dash" and you rap it around ur wrist so if u fall off the engine dies if on mine i couldnt get it to start for the longest time cause that dam thing wouldnt go on all the way so it didnt engage the button i ended up having to put a piece of tape over it then put the button on the engine fired rite up sounds stupid but ya never know
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