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Author Topic: 1977 Polaris TX 250  (Read 18737 times)

cloughrin

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Re: 1977 Polaris TX 250
« Reply #30 on: January 20, 2018, 03:41:16 am »
Here is model number 0770523
Couldnt get picture to load.

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    emrickmn

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    Re: 1977 Polaris TX 250
    « Reply #31 on: January 20, 2018, 10:57:34 am »
    Cody
    You have the correct 250 motor.
    Polaris used 340 bottom ends for both the 250 and 340 motors.
    If you still have the tag on the front, PTO side of the crankcase go by that ( the earlier tags were printed and could get scrubbed back to just aluminum). As well as the cylinder cast number.

    For your brakes, remove the hand lever, pull out the piston and clean everything with a Q-tip. Make sure both the big and very small holes are clear. Get the jelly out, refill and make sure to bleed it well. You'll probably be fine then.
    79 RXL +++++++++
    79 Centurion +++++++
    78 RXL +++
    78 TX +
    78 TXL
    78 Doo S/S
    77 TXL           
    76 SnoPro 340 +
    ------------------------------

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #32 on: January 20, 2018, 03:24:07 pm »
    The tag number on the PTO side is 600418.. I did not look at cylinders. I will check those out today.

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #33 on: January 22, 2018, 12:02:07 am »
    Some disassembly and cleaning today.

    acrneon

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    Re: 1977 Polaris TX 250
    « Reply #34 on: January 22, 2018, 01:27:35 am »
    That one is in nice shape. I have the same sled. Make sure to service the clutches. You will be surprised of the performance of the 250.
    Good luck and enjoy!

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #35 on: January 22, 2018, 09:28:41 pm »
    Thanks ACRNEON

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #36 on: January 25, 2018, 01:03:23 pm »
    Worked on the sled last night for few hours. Got both primary and secondary clutches removed for service. Took the brake apart and started clean up. Talk about nasty old sludge. Anybody have a line on the gasket that goes on the cover of the master cylinder? How about original hand grips? I want to remove the cylinder from the bars to clean up the black peeling paint. In trying to do this, I could not get the old grip to come loose. I may have to cut it off.

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #37 on: January 25, 2018, 01:18:28 pm »
    One thing I forgot to ask, what is the best way to drain the chain case oil before removing the cover? I didn't notice a drain plug anywhere. Any trick for this with out getting oil on everything? thanks

    emrickmn

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    Re: 1977 Polaris TX 250
    « Reply #38 on: January 25, 2018, 01:30:03 pm »
    Cody
    Try to save the hand grips. Those on the 77 are very hard to find. It's kind of difficult to do, but a long screw driver, some WD-40 and an air compressor almost always works.
    Give me a call tonight and I can walk you through it. Our number is on our website:  www.VintageSnowmobileRestoration.com

    For the chaincase, just pull the cover and wipe up the mess. There's only 4 oz of oil at most in it.
    79 RXL +++++++++
    79 Centurion +++++++
    78 RXL +++
    78 TX +
    78 TXL
    78 Doo S/S
    77 TXL           
    76 SnoPro 340 +
    ------------------------------

    chris r

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    Re: 1977 Polaris TX 250
    « Reply #39 on: January 25, 2018, 01:31:33 pm »
    Worked on the sled last night for few hours. Got both primary and secondary clutches removed for service. Took the brake apart and started clean up. Talk about nasty old sludge. Anybody have a line on the gasket that goes on the cover of the master cylinder? How about original hand grips? I want to remove the cylinder from the bars to clean up the black peeling paint. In trying to do this, I could not get the old grip to come loose. I may have to cut it off.

    I'd check with Mario who has a lot of Polaris parts for the gasket.

    On the grips, I use a long thin skewer type too and carefully slide it between the bars and grip, then I stick the tube on the WD-40 in and give it a quick shot. Sometimes I do it in two or three different locations and then I just twist with my hand to try and loosen it up. I try to stay away from the heat gun (though it might work) because I don't want to take a chance on melting the plastic, and I also don't want to use any type of channel locks or pliers. Even with a rag or something to soften the contact point, I worry that I might damage the grip.

     :)
    If you can't look back on your younger self and realize you were an idiot, you're probably still an idiot.

    chris r

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    Re: 1977 Polaris TX 250
    « Reply #40 on: January 25, 2018, 01:32:26 pm »
     ;D

    We posted the same thing at the same time.

    If you can't look back on your younger self and realize you were an idiot, you're probably still an idiot.

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #41 on: January 25, 2018, 03:15:22 pm »
    Thanks for the responses. I did try the air hose trick last night but did not use WD - 40, I will try that next. Probably mess around again on Saturday.

    chris r

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    Re: 1977 Polaris TX 250
    « Reply #42 on: January 25, 2018, 04:00:16 pm »
    Thanks for the responses. I did try the air hose trick last night but did not use WD - 40, I will try that next. Probably mess around again on Saturday.

    Use something narrow enough to just slip the tube on the WD between the grip and bar. I would be cautious as far as prying on it too much.

     :)
    If you can't look back on your younger self and realize you were an idiot, you're probably still an idiot.

    cloughrin

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    Re: 1977 Polaris TX 250
    « Reply #43 on: January 28, 2018, 01:21:35 am »
    A little more work in the shop today. Got brake all cleaned up and reassembled. Need to bleed the system yet. Also got chain case removed and started cleaning up. Going to replace bearings right away while its apart.

    ShaunB_827

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    Re: 1977 Polaris TX 250
    « Reply #44 on: January 28, 2018, 04:19:27 am »
    Looking nice and clean!! I'm curious, has anybody on here ever experimented with "rit dye" for restoring faded plastics??? These TX plastic pieces are getting hard to find.. It's available pretty cheap, and I've seen it used on motocross plastic parts with great results...
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