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Author Topic: Why not one more. Snowmobile engine deadtail  (Read 11741 times)

Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #30 on: Feb 07, 2016, 20:29:00 »
So, I spent some time tonight with a plasma cutter, air hammer, puller and a torch and finally got that clutch lose. Engine torn down. Gonna split the cases tomorrow and see if my crank is trashed.



I think I found where the pto crank play was coming from.....



Nice thing is I can still get crank bearings, full winderosa gasket set and oversize piston and rings for less than $100 to my door
Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline VonYinzer

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Re: Why not one more. Snowmobile engine deadtail
« Reply #31 on: Feb 07, 2016, 21:49:23 »
So...





















































Done yet?
Like a river that don't know where it's flowin'
I took a wrong turn and just kept goin'

Offline JustinLonghorn

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Re: Why not one more. Snowmobile engine deadtail
« Reply #32 on: Feb 07, 2016, 21:50:37 »
That^
I'm going to eat your brains and gain your knowledge.

Into The Sunset, CB750 build

TT500 the Animal

Offline Tune-A-Fish©

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Re: Why not one more. Snowmobile engine deadtail
« Reply #33 on: Feb 07, 2016, 21:52:02 »
yup
« Last Edit: Feb 07, 2016, 21:54:10 by Tune-A-Fish »
"I didn't come here and I ain't leavin"  Willie Nelson

"love hard, live fast, die fun" Kacey Musgraves

"Like a Wreckin Ball!" Eric Church


Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #35 on: Feb 07, 2016, 22:14:09 »
So...





















































Done yet?
Yeah, took me a bit to reply cuz I was out riding it. Little more tuning to do, but she runs ok.
Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #36 on: Feb 08, 2016, 12:17:27 »
O.S. Piston, crank bearings and seals and full gasket set ordered and on the way for $90.91 shipped to my door. I know an oldschool speedway racer that still bores cylinders for $35 a hole and does nice work. so, with all the labor done myself, I can have a full rebuilt engine for around $125. That seems pretty cheap to me =)
Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline JustinLonghorn

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Re: Why not one more. Snowmobile engine deadtail
« Reply #37 on: Feb 08, 2016, 12:27:55 »
Yep.
I'm going to eat your brains and gain your knowledge.

Into The Sunset, CB750 build

TT500 the Animal

Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #38 on: Feb 08, 2016, 18:20:58 »
Here is a video of the same motor idling in a snowmobile. I will definitely need rubber motor mounts.


Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline ridesolo

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Re: Why not one more. Snowmobile engine deadtail
« Reply #39 on: Feb 08, 2016, 19:00:32 »
Here is a video of the same motor idling in a snowmobile. I will definitely need rubber motor mounts.

Why?  You're putting it into a hardtail frame, so how come you'd be worried about a little vibration?   ;D

Are you going to do a torque converter and a jack shaft, mini bike style or are you going to primary belt/chain it into a transmission?
“Fight on and fly on to the last drop of blood and the last drop of fuel, to the last beat of the heart.”
— Baron Manfred von Richthofen

Please check out:  http://www.VetTix.org

These are on a low simmer out in the shop:
'75 Honda CL360: http://www.dotheton.com/forum/index.php?topic=56547.0
'70 Rupp Roadster: http://www.dotheton.com/forum/index.php?topic=67459.0