1986 ski doo safari 377 starting problems - Snowmobile Forum: Your #1 Snowmobile Forum
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Old 12-26-2012, 05:26 PM   #1 (permalink)
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1986 ski doo safari 377 starting problems

Hey guys im new to this site and this is my first forum. I have a 1986 ski doo safaria that i cant get started. I got it out yesterday and it fired up but it would stay running, i figured thats because it has sat for 2 years due to no snow. But when i started it again it would stay running if i kept feeding it the primer. Today when i went to ride it would only run if i kept on the throttle and kept giving it primer. Once it died, it died. I couldn't get it started again. So i cleaned the carb out and cleaned the plugs and tried to fire it again, still not starting. And by the way I have been using the pull start, due to no battery in it. If anybody has a answer to why it wont start or fire, or even a suggestion please let me know asap! Thanks!
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Old 12-26-2012, 05:50 PM   #2 (permalink)
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I am not a licensed mechanic nor do I play one on tv. Lol. What I do know about carbs is clean clean clean. Also a carb can't deliver fuel if its not receiving any so check the fuel pump and the vacuum line that operates it. I have one of these sleds and the diaphram can dry out and crack from sitting. A rebuild kit is cheap from the dealer and easy to install, and not a bad thing to do on a sled this old anyways.
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Old 12-26-2012, 06:05 PM   #3 (permalink)
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You need to clean the carb. There is a tutorial in the how-to's section of this forum. Drain the tank completely as well, so if there is water in it, you won't suck it back into the carb after you clean it.
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Old 12-26-2012, 06:56 PM   #4 (permalink)
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Well the thing is i just replaced all that, fuel lines and all. they are brand new. carb was cleaned for almsot 2 hours today! I have gained progress though, i put new plugs in it and its wanting to fire now, just isn't getting there.
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Old 12-26-2012, 08:05 PM   #5 (permalink)
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How is the spark is it orange or bright blue. A weak spark will make it hard to start. Might have to clean the flywheel and magneto. Also be sure the oil lines are not gummed up and that the pump is working otherwise it won't run long. I know this from personal experience. The 377 will go real good just before it quits. Good luck.
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Old 12-27-2012, 03:24 AM   #6 (permalink)
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Did you drain the tank? Are the pugs wet with fuel?
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Old 12-27-2012, 10:32 AM   #7 (permalink)
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Spark is blue, and any suggestions on how to check and see if the pump is working? Also any suggestions on how to flush the lines out? And tank had a little gas left over so i add fuel stabilizer to it and filled the tank up. Should i have done that, or just drained it and put new gas in it? Also, plugs get a little went when trying to start.
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Old 12-27-2012, 03:58 PM   #8 (permalink)
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Yeah, like smallengineguy says, drain the tank even if there is no water in the fuel, after sitting for a couple years, it will be funky and adding new gas to it will make it less funky but funky nonetheless. He is right, if its watery, it will sit on the bottom and suck right back into the carb. When I up ended my safari tank I was astounded at the stuff that came out; grit and crud and 2 gas can funnels! As for the oil lines, take em off and blow them out and also blow out the nipples going into the engine. I cooked a 377 once because of crud in the oil line on one side. With good spark and good gas, it should be good to go.
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Old 12-27-2012, 04:18 PM   #9 (permalink)
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Well guys it runs now! Thanks for all the tips! I went out and bought a can of sea foam and ran that threw it, and re gapped the plugs just because it and fired. only thing is, now it wont stay at a idle. It wants to shut off, so im kinda back at where i was in the beginning. But this time its a lot better. I dont know if my carb isn't adjusted right, or if im not getting and fuel to the carb? Like i said only way it wants to stay at a idle is if i shoot it primer.
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Old 12-27-2012, 04:37 PM   #10 (permalink)
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Clean the carb real good. Check your fuel pump. I personally for the fifteen bucks would rebuild the pump and clean the carb.

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Old 12-28-2012, 06:56 AM   #11 (permalink)
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There is a pilot jet in the carb that needs to be removed and cleaned.
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Old 12-28-2012, 05:51 PM   #12 (permalink)
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Well guys thank you so much for all the tips and help. I finally got it running good. Bad gas, fuel filter, and clogged pump doesn't work so much lol.... Oh well, thanks for everything!
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