One Lung Polaris Race Snowmobile Part 4. Engine rebuild and test runs! Vintage Polaris Snowmobile.

Рет қаралды 6,529

5 ай бұрын

A full engine rebuild including crank bearings, A seat upgrade to an XCR seat and Test Runs! I take it all the way to the finish line in this video. Great snowmobile sounds!
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Brass fuel tank pickup with screen for 1/4" fuel line. amzn.to/46d5k91
Battery I used for project Walnuts amzn.to/3rvxb5r
My favorite (almost) universal tether. Works on all vintage Polaris amzn.to/3LLn3gm
99502H 2RS bearings - oddball smaller bearings used in some Polaris skids. amzn.to/3D9yLfO
Rivnut tool we use in the shop: amzn.to/3H98pNp
The O-rings for Polaris TX carbs amzn.to/3wc25hG
Shoe Goo -- Fix your sled seat! amzn.to/3XAJfgc
Shake and Break! The Ultimate Philips impact driver! amzn.to/3CcJgyk
62052RS bearing I have been using. Cheap, but seem OK for my use: amzn.to/3h2ZimS
Wix 33001 1/4" Fuel Filter for sleds: amzn.to/3zs1x9A
Brass 3/4" hose barbs: amzn.to/3Fvrjh4
Spring Compressor - right size for sleds: amzn.to/3MU5Jo1
Really deep 12mm socket for above compressor: amzn.to/3uIDyjE
9/16 6 point socket, 1/4" drive: amzn.to/3EYDQcF
Mayhew Dominator Pry Bar set: QUALITY!!! amzn.to/3yvg0B6
Genuine Hella H4 headlight for wedge Indys: amzn.to/3LjQOmq
Insulation for belly pan near pipes: amzn.to/3DqyOEU
7PSI lever lock radiator cap for Vintage Polaris (large cap) amzn.to/3BhUjVN
1/4-20 flat nuts for vintage Polaris: amzn.to/3qGa18e
9mm hose clamp for fuel lines: amzn.to/3xBS51Q
Three Bond 12-11: amzn.to/3JVU4CM
Ultrasonic cleaning solution that I use: amzn.to/3scP7PX
Heavy Duty Voltage Regulator: amzn.to/3sY1m1W
LED light that fits TX and TXL: amzn.to/3Hcb2vEtage

Пікірлер: 63

@nuttersspeedshop 5 ай бұрын

Want to support the channel? Go To Nutter's Speed Shop Patreon Page: www.patreon.com/nuttersspeedshop

@tomrogers9467 4 ай бұрын

Dang! I had two ‘74 Colt SS. 250 twin free airs. Installed temp gauges under the plugs, since I did a lot of bush whacking in warmer weather. Those sleds would climb anything. (One climbed ten feet up a tree leaning over a cliff. - we stopped at the top to admire the view and a sticky new belt idled the machine right off the edge!). Suspension left a lot to be desired travel wise, typical to the era. Wish I could have kept them. Still have a box of new old stock for them and all the special tools too. And you absolutely MUST have studs on those metal grousers =. Those tracks would slide sideways like a luge on a run. Don’t ask.

@connorsvintageelectronics909 5 ай бұрын

I went to a snowmobile show with my old sno prince and did not expect so many people to like it so much

@nuttersspeedshop 5 ай бұрын

Very cool!

@darrylsmart1783 5 ай бұрын

You got as much snow as we did !! Glade you got test runs in !!

@nuttersspeedshop 5 ай бұрын

It was great to ride on snow, even if it was just yard riding.

@tca375 5 ай бұрын

That is a trip down memory seeing that 250 rip around.

@toddclyne3493 5 ай бұрын

Dang Lonnie was four fingers in and still was having a hard time making it happen 🤣🤣🤣🤣🤣🤣

@TCM_Productions 5 ай бұрын

Even though I've done plenty of quickie top end jobs, in general always preferred to pull the crank out for a full clean and inspect, little bit of time and some case seals always made me feel better, even when the bearings and everything else was intact. Funny how by the late '70s those car like bodies looked so old and dated, now they seem pretty freakin' cool again! I bet you could scrounge part of an old tank or a simple bend of metal to make a tank extension and fill that gap at the front of the seat nicely. Kudos for keeping the extreme vintage alive.

@nuttersspeedshop 5 ай бұрын

Thanks.

@bigboresledder 5 ай бұрын

Another good video and nice driving to miss all those trees!!

@MidnightPolaris800 5 ай бұрын

"We are not going to hit anything with this hammer" 😂😂😂

@larryarvidson835 5 ай бұрын

Awesome to see another 1 linger making noise over there! I’m digging the 72 hood too.

@nuttersspeedshop 5 ай бұрын

Right on!

@alaskarailroad3996 5 ай бұрын

Very nicely done John.

@nuttersspeedshop 5 ай бұрын

Many thanks!

@IowaBudgetRCBashers 5 ай бұрын

That thing rips for a little 250

@user-mi2wg9sh6c 5 ай бұрын

i think a good name for that colt would be natter from the cars movie.one headlight.

@MidnightPolaris800 5 ай бұрын

When putting in staples its best to put them at a 45 degree angle for 2 points of contact when it stretches. My mom did alot of recovering and taught me this

@trentdavis1354 5 ай бұрын

The real question is what were you drinking?!😂

@nuttersspeedshop 5 ай бұрын

Grain Belt light.

@alecjagol2447 5 ай бұрын

Today I pickup decker pipes for the 650

@nuttersspeedshop 5 ай бұрын

Nice!

@toddnewman2835 4 ай бұрын

Awesome job guys!

@nuttersspeedshop 4 ай бұрын

Thanks so much!

@user-bp1wm7iw3j 5 ай бұрын

Nice runner! Love the how to rebuild the brake piston! Do u have any videos on rebuilding Polaris 650 triples water pumps? Or know of any kits that might be available? Awesome channel!

@nuttersspeedshop 5 ай бұрын

Sorry, no videos on water pump rebuilds.

@craigcooper9328 5 ай бұрын

We're having our vintage show today in Michigan North Dakota I'm taking the 77 Colt SS 340 and the 75 Colt 340 I haven't done anything with the 73 Colt 250ss yet

@nuttersspeedshop 5 ай бұрын

Nice! Have fun at the show.

@MidnightPolaris800 5 ай бұрын

Too bad your 2 hours away or I'd be there

@vjkubert 5 ай бұрын

Any snow where you are? I put mine away for the season 😢I only ask because you haven’t shown any riding footage. Love what you do! Keep up the good work!

@nuttersspeedshop 5 ай бұрын

It's been horrible this year. bare ground until the middle of last week. The snow you see in the video came in mid-week. The end of the video was shot yesterday and we were already losing a lot.

@jameskirk5906 5 ай бұрын

Cool sled! MAGA 2024!!!

@scottbement5739 5 ай бұрын

Recently, I just free build a 250 motor myself. You mentioned rebuilding the car my change in the pilots in Jets, but she didn’t offer the information on the size of the Jets and you mentioned you were going to do some clutching, and just for the sake of future, hope you are going to, tell the size of the clutch weight and spring pound age thank you in advance

@nuttersspeedshop 5 ай бұрын

It's pretty easy to melt a piston and my setup might just do that on a different sled so I don't give out that info. Tune at your own risk. You can find the 1972-1981 factory service manual for free on vintagesnow(dot)com and the stock jets and clutch setup is in there.

@craigcooper9328 5 ай бұрын

We have no snow yet

@IowaBudgetRCBashers 5 ай бұрын

I’d like to find an sm292 Yamaha and make a 1 lung racer out of it.

@terryzig 5 ай бұрын

Save those knee pads out of that old XCR seat cover. Might need them some day.

@jrhaines30 5 ай бұрын

Pretty sure that motion pro wrench needs to be at a 90 degree angle. Also congrats on 5k subs.

@nuttersspeedshop 5 ай бұрын

Thanks for watching. I looked at the instructions and that is not the case about needing to be 90 degrees. 90 degrees also makes no sense for how the calculations are done.

@jrhaines30 5 ай бұрын

@@nuttersspeedshop I think when it is at 90 degrees no calculations need to be made. Set the wrench and you're golden.

@nuttersspeedshop 5 ай бұрын

That is not what the instructions say, but you do whatever you want.

@kengilmore4384 5 ай бұрын

Love these old sleds. A buddy and I have been having terrible luck with piston rings. We honed and reringed a 74 colt 250 twin and after 15 minutes of run time the rings were toast. Any suggestions?

@nuttersspeedshop 5 ай бұрын

That's an iron bore cylinder so the rings should be chrome faced. Otherwise it's a matter of getting the right finish and breaking them in properly. I'm using about a 180 grit stone for the final finish. Some might say that's too coarse, but it works for me.

@nuttersspeedshop 5 ай бұрын

I should add - you need to make sure your cylinder is round. Putting a cross hatch on a tapered or out of round cylinder is pretty useless. If you go back to the video where I honed this cylinder you can see the equipment I used. A ball hone or a weak three finger hone won't bring a worn cylinder back into shape. You might need to get it bored for the next size piston, but just finding a good used motor is often cheaper.

@kengilmore4384 5 ай бұрын

Thank you much. Love the channel

@andyceranski6823 5 ай бұрын

Hey John I’m re building a 74 tx 250. Will any year Indy brake master work or is it just certain years?

@nuttersspeedshop 5 ай бұрын

Pretty much any 80s or 90s master cylinder should work. They all had a 3/4" bore. Just look for one that looks like what I used in this video.

@IowaBudgetRCBashers 5 ай бұрын

Are you using ether, carb clean or wd40 for starting fluid Nutter??

@nuttersspeedshop 5 ай бұрын

squirt bottle with pre-mixed 2 stroke.

@hoffbug 5 ай бұрын

Any plans or Scheming going on for the Bullwhip?

@nuttersspeedshop 5 ай бұрын

It's on the list of projects. It will get done eventually.

@brianwilber4347 5 ай бұрын

Where did the seat cover come from?

@nuttersspeedshop 5 ай бұрын

Ebay. Seller was gumtwo32

@alecjagol2447 5 ай бұрын

Well bought a 88 rxl 650 someone put a 159 track engine has been build 100 octane she a little bogge clutch setting not right and has a single pipe would triple pipes ill see what can find

@nuttersspeedshop 5 ай бұрын

Sounds like a fun sled.

@kevinandres5053 5 ай бұрын

I have a rxl i can't find your email to send you pics. How do I go about this?

@nuttersspeedshop 5 ай бұрын

It's in the description of every video.

@junkyardkid8717 5 ай бұрын

You need 2 people around to put in circlips incase you need to dial an ambulance.

@nuttersspeedshop 5 ай бұрын

LOL!

@junkyardkid8717 5 ай бұрын

You should have 9 and 1 predialed

@MrStorbeck 5 ай бұрын

Nothing worse than sending a wrist pin clip into another dimension and NOT hearing the little "ting...ting ting". Welp, that no longer exists in our universe. Get a new one.