1989 Ski-doo Safari - Snowmobile Forum: Your #1 Snowmobile Forum

Spazzalot · 07-18-2007, 08:35 PM

I have a 1989 Safari. 377cc. I get it too start and run a bit...it wont run fast enuff to engage the clutch. Then it slowly bogs down and dies at full throttle. I did a compression test by taking out both plugs. Pulling cord 3 times. Pressure hit 113 Avg on both cylinders. It does get fuel...the primer spits it out too.

I have no idea. Rings? Clean carb?

iceman400 · 07-18-2007, 08:50 PM

my friend has a 1990 safari 377 and he dosn't take care of it at all, its not in good shape the cowl is cracked and the suspention is toast but the motor never dies or has any problems with it its a great ice fishing machine...but it sounds like you need to clean the carbs... here is a pic of his safari.. everthing on this sled is held together by bungy chords..hood..and both a-arms! but it has electric start that works!

Connor.

Spazzalot · 07-19-2007, 04:30 AM

I took the heads off. Didnt see any leaks thru gaskets. I took carb off but appears to be 100% clean. I wonder if there is a way to see if its running too rich etc... Or pumping more oil into it then needed. It's oil injected. Pumping the primer shoots gas out of the lines properly. I assume its not a blockage etc. I really desperately need a manual on how to repair this machine. Like setting the carb jets etc.... If anyone has one can ya scan and send? Or mail whatever I can pay postage for it...lemme know please.

Heres the thing. Not playing on anything. My dad just got diagnosed with heavy cancer in his right lung. Last year he had his left lung removed. I dont think he can walk this winter. He dont own a sled. I want to bring this to him to let him be able to fish this winter. He has a terminal condition. I hate cancer.

At any rate... I must get this running properly for the winter for him.
Thanks.

Spazzalot · 07-19-2007, 09:11 PM

Okay... could you take a picture or look at your freinds machine. Specifically, on the body you see a small fuel pump with hoses coming in and out of it. Now down farther there is a small aluminum square thing. It has a wire harness coming out of it. Also a small post in the center of it.... would be approx. 2" square...could you find out what that part is for?

The wire harness leaving it had 2 yellow wires crimped by the motor. There was bare wire touching the snowmachine body.

Depending on what that thing is...I wonder if it would cause the above problem?

**smallengineguy** · 07-20-2007, 07:32 AM

Sounds like you have a spark issue on one cylinder. The square thing is the voltage regulator, it controls power to the lights, etc. but not engine power. Are the plugs all wet with fuel? Put new plugs in and try again.

Spazzalot · 07-20-2007, 08:16 AM

I found reference to a certain plug that runs hotter on the net... What plugs you recommend then? Yes the plugs were wet. There seems to be a build up of oil in the exhaust as well. Probably due to misfiring condition.

That little voltage regulator has a harness coming out of it. The wire casing is wore thru..and was touching the body. What effect would this have?

iceman400 · 07-20-2007, 09:13 AM

i have a set of NGK iritiums... they work fantastic on our sleds..

Spazzalot · 07-20-2007, 03:49 PM

NGK BR8EYA spark plugs

These are the plugs I read about.

**smallengineguy** · 07-20-2007, 04:17 PM

Like I said, it would affect the lights and guages, but not the engine. Replace the plugs with factory originals,, BR9es. A hotter plug will NOT solve your problem.

Spazzalot · 07-20-2007, 05:50 PM

I will have to wait until reassembly now to see if plugs will work. I am repainting, cleaning, and generally rebuilding all the worn out parts too.

So will let ya know

pipedrotax600 · 09-29-2007, 10:40 AM

it sounds like she may be dumping gas so i would reajust the jets while it is all apart.

upersleder · 09-29-2007, 02:34 PM

take a zip tie or something and crimp the primer lines, lots of times the primers go bad and cause several issues, before you go tearing into anything eliminate the primer as the cause. if the sled runs good with the lines plugged go buy a new primer.

awpp · 12-01-2007, 07:27 AM

I have the same problem with my 86 safari 377
when it i very cold -25 C or colder runs perfect but when it worms up it goes on 1 cylander only new plugs installed compression is 114 on each cyl. new coil for plugs
I think it may be the bearing on the clutch side since this side doesn't fire well
when warmed up.
any opinions guys
awpp