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Thread: Another 86R Rebuild Thread!

  1. #1
    Join Date
    Apr 2009
    Location
    Parker, CO
    --
    607

    Another 86R Rebuild Thread!

    Yesterday after work I decided to repack my muffler. Next thing I know This happened.



    I got this trike about 4 years ago. Here is what it looked like when I first got it (except for the bark busters)





    After the throttle stuck on WOT one time, I figured I should overhaul it a bit. Here are a few pictures of that process

    Old piston, really dodged a bullet there!


    New bore, new piston.


    More new stuff




    First start after rebuild




    Trike really came alive after the rebuild. But it needed new suspension. I put a Works shock on the back and progressive rate spring on the front



    Here it is with the new suspension and some new rubber






    Now it's time to clean the trike up again. I have it mostly tore down right now. Waiting on parts. Plan on doing:

    New crank seals
    New water pump seals and bearings
    New swing arm seals and bearings
    Inspect the top end and see how its doing. Check the play in the crank while in there.
    New shrouds
    New stickers
    New hoses for radiator
    New chain and sprockets
    New muffler - both exhaust hangers on the muffler failed when I landed a jump and I didnt notice right away, so the muffler got all beat up :\
    Other odds and ends

    I'll keep this thread updated as I go. Sure I'll have some questions for you guys.

    Does anyone have a decent OEM exhaust hanger, the one with two bolt holes that goes on the top of the exhaust, they want to sell?
    Will Mayer plastic fenders looks bad with my OEM tank and shrouds?
    Got any suggestions for other things I should replace/check while I'm at it?

    Thanks eveyrone for this site and all the help ya'll have been to me over the years!

  2. #2
    Join Date
    Sep 2010
    Location
    NEPA
    --
    7,040
    Looks great. Maier plastic will look great.
    Please help those who cannot help themselves.

    ALWAYS buying Museum quality machines,3 and 4 wheels. And any and ALL ,NOS parts,EVERY brand.

    I am turning my PM's Off,my Email is billsracing@hotmail.com,put 3WW in the subject. Thanx!

    Gun laws do not stop criminals. BULLETS do.

  3. #3
    Join Date
    Feb 2012
    Location
    Pennsylvania
    --
    54
    Am I the only one that drools over the original tires...?

  4. #4
    Join Date
    May 2011
    Location
    The Granite State
    --
    914
    Quote Originally Posted by RPMRestorations View Post
    Am I the only one that drools over the original tires...?
    No sir, in MHO theyre the best sport ATC tires ever made performance and looks... IM WITH YA!
    86 350X ::: 85 250R


    Projects
    350x


    Come and Gone
    86 350x : 84 250r X2
    85 350x X2 : 84 200es X3
    83 200e : 78 ATC90

  5. #5
    ONEBAD350X's Avatar
    ONEBAD350X is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2008
    Location
    Iowa
    --
    339
    Quote Originally Posted by RPMRestorations View Post
    Am I the only one that drools over the original tires...?
    Nope sir, I do too haha!
    85 350X
    85 330R
    85 250R
    86 250R
    AVATAR IS MY OLD 350X

  6. #6
    Join Date
    Apr 2009
    Location
    Parker, CO
    --
    607
    Got a press so I can rebuild the swingarm. Always wanted one Sure makes things a lot easier.
    I bought this rebuild kit: http://www.ebay.com/itm/390667535454...%3AMEBIDX%3AIT
    One thing worth noting, this does not come with any of the bearings or seals that go in the bearing carrier. So now I'm waiting on that stuff to finish the swingarm.


  7. #7
    Join Date
    Apr 2009
    Location
    Parker, CO
    --
    607
    I have noticed on my kick start assembly I seem to be missing two washers. Can anyone confirm that these two washers are infact a part of the 1986 kick start assmbly? ( the outer ones going on either side of #9 )
    I only ask because in some digagrams I see, they are showing parts that I know only go on the 85r.

    In this diagram they are #10, I dont seem to have either one of them... I might have lost them during disassembly, but I don't think so.



    Thanks!

  8. #8
    Join Date
    May 2010
    Location
    Ripon, Wisconsin, United States
    --
    861
    Maier fighting red matches pretty good.
    ]1986 ATC 330R
    1985 ATC 250R vintage PSI racing ported motor
    Get your replacement ATC 250R decals and custom Big Bore #'s here http://shop.3wheelerworld.com/catego...=2&pagegroup=1

  9. #9
    Join Date
    Apr 2009
    Location
    Parker, CO
    --
    607
    I agree, after looking at some pictures of the fighting red fenders installed, I think they look pretty sharp and match much better than the other Maier plastics.

  10. #10
    Join Date
    May 2011
    Location
    The Granite State
    --
    914
    I cant say yes or no for sure but usually when parts or part #'s are in a bracket like that it denotes a change in design from year to year...say from 85 to 86
    86 350X ::: 85 250R


    Projects
    350x


    Come and Gone
    86 350x : 84 250r X2
    85 350x X2 : 84 200es X3
    83 200e : 78 ATC90

  11. #11
    Join Date
    Aug 2008
    Location
    devore,ca
    --
    1,001
    There is something different in the kicker assembly from 85 to 86 and it does have something to do with that area. The 85's kicker started to "slip" after a while and it had to do with that spacer-washer area.
    YAMAHA 450 HYBRID
    85 350X- RED
    85 350x -BLACK
    86 350x-WHITE (with Goki)
    85 250r
    83 atc 70
    84 atc 70
    84 atc 110
    09 yfz 450
    2006 Arctic Cat Prowler
    RZR XP 900

  12. #12
    Join Date
    Jul 2011
    Location
    Colorado
    --
    141
    According to the parts catalog #10 belongs on the 85R only.

  13. #13
    Join Date
    Jul 2010
    Location
    O.C., Oregon
    --
    919
    Quote Originally Posted by mohadib View Post
    I have noticed on my kick start assembly I seem to be missing two washers. Can anyone confirm that these two washers are infact a part of the 1986 kick start assmbly? ( the outer ones going on either side of #9 )
    I only ask because in some digagrams I see, they are showing parts that I know only go on the 85r.

    In this diagram they are #10, I dont seem to have either one of them... I might have lost them during disassembly, but I don't think so.



    Thanks!
    The 2 washers are used on the 85 motor only. They updated to a longer collar after 85.
    1985 250r-LED Performance 4mm Stroker motor
    1978 ATC70 w/ Piranha 140cc
    1972 - K1 - CT70 w/lifan 125cc
    2017 YZ 250x- Braap

    Youtube channel = http://www.youtube.com/user/ter5678/videos

  14. #14
    Join Date
    Mar 2014
    Location
    New Brunswick, Canada
    --
    147
    So can you run an 86 collar on an 85 without the 2 washers?

  15. #15
    Join Date
    Jul 2010
    Location
    O.C., Oregon
    --
    919
    Quote Originally Posted by rdonald1979 View Post
    So can you run an 86 collar on an 85 without the 2 washers?
    Yes sir, no problem
    1985 250r-LED Performance 4mm Stroker motor
    1978 ATC70 w/ Piranha 140cc
    1972 - K1 - CT70 w/lifan 125cc
    2017 YZ 250x- Braap

    Youtube channel = http://www.youtube.com/user/ter5678/videos

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