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Thread: good literature on 250r engine building

  1. #1
    Join Date
    Jan 2006
    Location
    Huntersville, NC
    --
    106

    good literature on 250r engine building

    Hi,

    I was wondering if anyone had or know of a good book to rebuild atc and trx 250r motors.


    Thank you.
    10 Buy it
    20 Beat it
    30 Break it <----- Sometimes this is the end of the routine
    40 Fix it
    50 Sell it
    60 Goto 10

    Current
    1985 @TC 350x, 1986 @TC 600x <---need to make a 250r into a 500r next.

    Past
    81 KLT 200 ,82 ATC 185S Restored, 84 Tri Moto 125,
    84 200es Big Red, 85 250es Big Red
    85 1/2 TRI-Z 250 Fully Restored 2nd place in competition @ Metrolina bike show March 2011
    85 350x, 86 350x
    86 250r Restored ,87 250es Big Red, 87 200x Restored

  2. #2
    InPiEcEs's Avatar
    InPiEcEs is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Apr 2004
    Location
    Northeast Wisconsin
    --
    378
    I would start with getting ahold of a Honda factory service manual. There was book I remember some time back that had a few tricks and tips for a little extra edge, but I can't recall what it was. I may remember eventually. If you just need something to guide you through a complete teardown, including tranny, the Honda manual is what you want. Keep in mind that they made a few minor tranny changes in the TRX,and also keep an eye out when mixing cylinders from different years, as the later TRX had the long-rod crank.
    One piece at a time. Status: The Beast is Done..06-23-07
    Back in the saddle again
    Currently owned rides:
    My sleds, and.........
    1995 CBR600F3
    1976 Kaw 400 triple-smoker......SOLD
    1986 250R...owned since 1990
    06-23-07........the R is finally done!!!
    ESR pipe, Aktive reeds/CR cage, 38mm PWK, +4 Dominator
    mild clean-up porting, an open K&N, CR and YZ calipers.......among other things

  3. #3
    Join Date
    Jan 2006
    Location
    Huntersville, NC
    --
    106
    Ok thanx, I have 2 1986 atc 250r motors all in pieces, I went through them with a parts diagram and I definately have 1 full one in parts. Too bad those parts diagrams dont say much. I do also seem to have 1 banshee shift drum and forks. what the hell is that for? Is there a tweak? I really would like to know all the cool little tweaks to do before putting this back together also.
    10 Buy it
    20 Beat it
    30 Break it <----- Sometimes this is the end of the routine
    40 Fix it
    50 Sell it
    60 Goto 10

    Current
    1985 @TC 350x, 1986 @TC 600x <---need to make a 250r into a 500r next.

    Past
    81 KLT 200 ,82 ATC 185S Restored, 84 Tri Moto 125,
    84 200es Big Red, 85 250es Big Red
    85 1/2 TRI-Z 250 Fully Restored 2nd place in competition @ Metrolina bike show March 2011
    85 350x, 86 350x
    86 250r Restored ,87 250es Big Red, 87 200x Restored

  4. #4
    Join Date
    Jan 2006
    Location
    Huntersville, NC
    --
    106
    think I can sell 2 motors in parts to get a good running one?
    10 Buy it
    20 Beat it
    30 Break it <----- Sometimes this is the end of the routine
    40 Fix it
    50 Sell it
    60 Goto 10

    Current
    1985 @TC 350x, 1986 @TC 600x <---need to make a 250r into a 500r next.

    Past
    81 KLT 200 ,82 ATC 185S Restored, 84 Tri Moto 125,
    84 200es Big Red, 85 250es Big Red
    85 1/2 TRI-Z 250 Fully Restored 2nd place in competition @ Metrolina bike show March 2011
    85 350x, 86 350x
    86 250r Restored ,87 250es Big Red, 87 200x Restored

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