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Post by shreddagnar on Feb 4, 2018 10:11:02 GMT -5
After eliminating every possible problem on my 81 Sting, it sure feels good to ride. This is my first snowmobile. It took two years to get it dependable. It would surge and bog and burn up belts. The lights never worked. The hand warmers gave me the cold shoulder. The PTO piston was gouged, rings shattered when a piece of the head cracked off inside the chamber last year and the recoil shattered with it. New piston and a new cdi box did the trick and replacing the plastic sliders in the clutch keeps my belts happy. New lighting coil and my gloves get toasty. I couldn't make it to Crosby but I did a lake ride yesterday and hit 67.3 mph. Torque monster. Finally!
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Post by shreddagnar on Feb 4, 2018 9:45:30 GMT -5
More than likely just needs timing
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Post by shreddagnar on Feb 4, 2018 9:42:22 GMT -5
What was your ring gap set at when you replaced the pistons? Did you pressure test the crankcase? It could be center seal, timing, air leak? Check compression again.
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Post by shreddagnar on Dec 23, 2017 16:28:19 GMT -5
Snowmobiles do not need registration for the homecoming. It's a special one day exemption I believe.
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Post by shreddagnar on Dec 22, 2017 19:55:48 GMT -5
I'll be going for the first time.
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Post by shreddagnar on Dec 24, 2016 12:06:28 GMT -5
I was wondering this myself. My brake is worn to the screws. I haven't got around to looking for a replacement.
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Post by shreddagnar on Dec 10, 2016 16:00:46 GMT -5
A buddy convinced me to get some sleds. He has el tigres. I always thought sleds were loud, stinky, and annoying but I always had fun on them. We saw the sting for sale close by and I thought it was just too nice and clean to pass by. We got it running easy enough and another sled and extra engine popped up for sale close by. 1980 TK and a Rockwell 440. Everything is basically the same so i thought what the hell it can be a parts sled. We looked at it and found it to be really clean as well, only "problem" was the engine was in pieces. So that's the story of my next project and how quickly you can get addicted. I'm keeping an eye out for a sled that needs a motor but that can wait until next year. So what's faster? Scorpion Sting or el tigre 5000.
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Post by shreddagnar on Dec 10, 2016 8:26:29 GMT -5
Well, just want to say these threads are nice to search and see what others have done with their sleds. I put the new throttle cable on. I adjusted the little bolt all the way down, all the way up, middle. Slide would not go down. Started sled about 3 times trying to adjust it. Idle was still high. No way! I couldn't figure out if it was twisting, catching, or broken. Really questioning if something was put together wrong. I don't know why but that nut had to be about halfway and locked on the carb top before you tightened it down then the slide would go all the way. Whatever, 6" of snow today and tomorrow so I can finally ride it! The lights aren't working so that will be next. Hopefully just a bad ground (as others have mentioned).
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Post by shreddagnar on Dec 5, 2016 21:14:54 GMT -5
I checked Dennis Kirk. "932" is for 34mm or smaller. I need "933" throttle cable for 36mm-38mm powerjets. I'll have to order one and try it. I'll post an update. Thanks
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Post by shreddagnar on Dec 5, 2016 21:00:44 GMT -5
I'm taking the carb off. When I check the throttle slide, it doesn't seem to be going down far enough. I believe I have the wrong length throttle cable. It's set properly in the throttle lever. I can't adjust it any lower. I have a picture I will try to post later. My throttle cable has the numbers "932" stamped on it. I can see the top of needle jet when throttle valve is it's lowest. What is the correct length?
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Post by shreddagnar on Dec 4, 2016 21:06:25 GMT -5
Hello all, I just bought a 1980 sting to fix up before the snow flies. At first I had no spark so I thought I needed a cdi box but only had to connect some wires and we had ignition. Sled wasn't run for couple years and had a high idle. I took the carb out and cleaned everything. It was filthy with old gas caked on bottom of bowl. The needle that the float arm rests on was a bit sticky so I figured the could be causing high idle. All the jetting was correct for the powerjet 36mm mikuni. Float arm was level. I put the clean carb on, put in good gas and it still idles high right away. Seems like 4500-5000 rpms. We checked for leaks with starting fluid and tried adjusting idle screw, and air screw. I checked the throttle valve and it is going all the way in. I can put my hand over air box and the rpms do go down. This is my first sled so I don't know what else I can try.
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