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Post by 80sting440 on May 25, 2016 11:09:10 GMT -5
Just wanted to say hello to all Scorpionites on this vintage sled site.
I've recently purchased a 1980 Sting from a nice fellow in Minnesota. I'll be going over the sled to turn it into a "refreshed" and reliable one. It will become my wife's vintage rider.
Looking forward to seeking your expert answers to my yet unasked questions!
80sting440 |
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Post by weverat on May 25, 2016 14:21:13 GMT -5
Is this your first Scorpion ? The Sting is a great piece, definitely one of my favorites.
Can you post some pics, tell us how you found it etc.
Welcome to the site.
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Post by 80sting440 on May 26, 2016 7:04:32 GMT -5
Is this your first Scorpion ? The Sting is a great piece, definitely one of my favorites. Can you post some pics, tell us how you found it etc. Welcome to the site. Hi weverat. Yes this is my first and I think I've been stung! It reminds me somewhat of my first snowmobile purchase in '73...an El Tigre' 400 in that it's light weight, low to the ground, easy to pull start and simple to work on.
I found it being listed on vintagesleds.com.
Thanks for the warm welcome.
ps. I'm holding a 4"x6" photo in my hand that was given to me by the previous owner...hmmm...if only there was a way that I could load it into this coffee cup tray thingee on the side of my laptop... 
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Post by oldscorpman on May 26, 2016 10:48:53 GMT -5
Just wanted to say hello to all Scorpionites on this vintage sled site.
I've recently purchased a 1980 Sting from a nice fellow in Minnesota. I'll be going over the sled to turn it into a "refreshed" and reliable one. It will become my wife's vintage rider.
Looking forward to seeking your expert answers to my yet unasked questions!
80sting440 welcome and be warned in 2010 i had no vintage sleds now i have 9 scorpions. rick |
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Post by kube1 on May 26, 2016 13:12:37 GMT -5
Finally. Another like minded Scorpion guy who isn't 2500km away. Bring that bad boy to our rally near Saskatoon next February. And lets see some pics!
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Post by 80sting440 on May 27, 2016 13:09:15 GMT -5
Just wanted to say hello to all Scorpionites on this vintage sled site.
I've recently purchased a 1980 Sting from a nice fellow in Minnesota. I'll be going over the sled to turn it into a "refreshed" and reliable one. It will become my wife's vintage rider.
Looking forward to seeking your expert answers to my yet unasked questions!
80sting440 welcome and be warned in 2010 i had no vintage sleds now i have 9 scorpions. rick I'm currently in denial about this whole vintage sled disease...nope, not me...that's all you OTHER guys...nope, not me...
80sting440
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Post by 80sting440 on May 27, 2016 13:21:08 GMT -5
Finally. Another like minded Scorpion guy who isn't 2500km away. Bring that bad boy to our rally near Saskatoon next February. And lets see some pics! Heck yeah...only 786 kms apart...practically neighbours!
Saskatchewan has a much stronger vintage snowmobile scene than here in Manitoba.
Which rally is this and on what day in February?
80sting440
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Post by 75whip on May 28, 2016 17:27:37 GMT -5
welcome and be warned in 2010 i had no vintage sleds now i have 9 scorpions. rick I'm currently in denial about this whole vintage sled disease...nope, not me...that's all you OTHER guys...nope, not me...
80sting440
Welcome 80sting440. The vintage sled disease is real and very contagious. I have it, I started out with my 75 whip, and now I got 6 old scorpions in my garage. Engines all over the place. hey there is way worse things you can be addicted to. |
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Post by 80sting440 on May 29, 2016 9:57:20 GMT -5
I'm currently in denial about this whole vintage sled disease...nope, not me...that's all you OTHER guys...nope, not me...
80sting440
Welcome 80sting440. The vintage sled disease is real and very contagious. I have it, I started out with my 75 whip, and now I got 6 old scorpions in my garage. Engines all over the place. hey there is way worse things you can be addicted to. Yeah, like Ski Doos!
Thanks for the warm welcome 75whip.
80sting440
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Post by oldscorpman on May 29, 2016 20:25:12 GMT -5
whenever my wife complains about my sleds or my time in my shop i just ask her, do you want me at home where you can see me or in a bar chasing large breasted women.
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Post by 80sting440 on May 29, 2016 23:26:49 GMT -5
whenever my wife complains about my sleds or my time in my shop i just ask her, do you want me at home where you can see me or in a bar chasing large breasted women. My wife's a keeper as SHE's the one that recommended I get another snowmobile project!
I KNOW!!!!...she's a keeper!
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Post by 80sting440 on May 30, 2016 0:13:56 GMT -5
Is this your first Scorpion ? The Sting is a great piece, definitely one of my favorites. Can you post some pics, tell us how you found it etc. Welcome to the site. Here's the engine compartment. The speedo says 865 miles. I had the carb apart and checked it all out and it was clean.
I set it up. It starts first pull and runs very nicely. I'm on the fence on whether I should take it apart and give it a full checkup and reseal it, including centre crank seal or do a minor check by removing cylinders and inspect, or just remove intake and exhaust manifolds and take a look?
What are your opinions ?
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Post by weverat on May 30, 2016 6:04:15 GMT -5
I would not take it apart. Sounds like it runs good. The only thing you could do is re-torque the heads and cylinders. I think it is 18lb, do not go past, the studs will stretch, and become week.
You have to remove the engine and motor mount plate to do this, it is a pain in de ass, but otherwise the base gaskets will leak.
When I rebuild a Cuyuna I try to leave it sit next to the heater for at least a week or two, and I re-torque about three times.
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Post by obj1 on May 30, 2016 9:21:49 GMT -5
OLDSCORPMAN i have tried that line. She say it would be cheeper for me to hang out in the tavern!
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Post by 75whip on May 30, 2016 9:27:29 GMT -5
Is this your first Scorpion ? The Sting is a great piece, definitely one of my favorites. Can you post some pics, tell us how you found it etc. Welcome to the site. Here's the engine compartment. The speedo says 865 miles. I had the carb apart and checked it all out and it was clean.
I set it up. It starts first pull and runs very nicely. I'm on the fence on whether I should take it apart and give it a full checkup and reseal it, including centre crank seal or do a minor check by removing cylinders and inspect, or just remove intake and exhaust manifolds and take a look?
What are your opinions ?
I say leave it alone and run it. Best to leave a good running cuyuna alone. |
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Post by 75whip on May 30, 2016 9:30:46 GMT -5
OLDSCORPMAN i have tried that line. She say it would be cheeper for me to hang out in the tavern! Thats why i never tell her what i really paid for something  (oh i didn't just say that?) and yea sometimes hanging out in a bar (getting shot down by big breasted gals) would be cheaper |
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Post by 80sting440 on May 30, 2016 9:45:03 GMT -5
Thanks weverat...I hadn't mentioned it but I've retorqued them already. I guess great minds think alike or is it, like minds think great...
So I gather that the centre seals generally hold up?
Can you imagine the embarrassment my wife'll feel having to ride on the back of a Ski Doo Stratos if that Cayuna has a burn down?!!!
I'll wait and see how it runs this coming winter and reassess then.
I'm not new to this stuff but I know nothing about Scorpions and Cuyunas.
Thanks again for your insight.
Rene aka 80sting440
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Post by 80sting440 on May 30, 2016 10:00:31 GMT -5
Here's the engine compartment. The speedo says 865 miles. I had the carb apart and checked it all out and it was clean.
I set it up. It starts first pull and runs very nicely. I'm on the fence on whether I should take it apart and give it a full checkup and reseal it, including centre crank seal or do a minor check by removing cylinders and inspect, or just remove intake and exhaust manifolds and take a look?
What are your opinions ?
I say leave it alone and run it. Best to leave a good running cuyuna alone. Thanks 75whip.
You guys know Cuyunas and I'm willing to learn.
I'll leave it be and see how she runs.
I appreciate all of the advice you guys are willing to give out...this forum is turning out to be GREAT!
Rene aka 80sting 440
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Post by 80sting440 on May 30, 2016 10:32:36 GMT -5
weverat, so after rereading your post, this is what I gather...if I were to disturb the head/cylinder assembly I would need to reseal the cylinder bases with the engine on the bench and THEN remount it onto the motor plate. This is after retorquing the engine several times and perhaps putting it through some type of heat cycle first. WOW...I can see why it's best to leave these engines alone unless you are willing to go all the way. I'm okay with all of this...great information!
I just went and checked out the engine. If I were to pre mark the engine plate to know exactly where to reset it, I can have it out in a jiffy (do people still say that?) and back in in a jiffy and a half.
Thank you oh Wise One.
Rene
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Post by weverat on May 30, 2016 11:43:22 GMT -5
Those 6 nuts on top only hold the head on, you can take those on and off as much as you want.
The cylinder studs and nuts stick out the bottom, and they hold the cases together. The cylinder base gaskets tend to leak, so you have to keep the nuts tight.
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(oh i didn't just say that?) and yea sometimes hanging out in a bar (getting shot down by big breasted gals) would be cheaper