Page 3 of 3 FirstFirst 1 2 3
Results 31 to 41 of 41

Thread: Help/advice installing 250R piston (Installing new piston)

  1. 09-07-2006, 06:18 AM #31
    Fox250R's Avatar
    Fox250R
    Fox250R is offline Power User Roostin Away
    Join Date
    Jun 2004
    Location
    Oregon
    --
    1,784
    Could it be a vertex piston?
    1986 ATC 250R
    Ported w/ Cool head
    LED pipe and silencer.
    Vforce3
    Keihin PWK 38mm
    Works Ultra Cross Shock
    LSR +2 Axle
    American Star Racing +4 Swinger
    LED Intake
    Hi-Flite desert seat
    OEM clutch 89 upgrade
    2021 YFZ450Rse Rossier R5 Titanium Header AIS Delete FCI Vortex ECU

    Reply With Quote Reply With Quote
  2. 09-07-2006, 06:21 AM #32
    250r'en +TCB's Avatar
    250r'en +TCB
    250r'en +TCB is offline Power User Roostin Away
    Join Date
    May 2005
    Location
    Southern NH
    --
    1,489
    Ok I took a picture of the box the piston came in, but you can't read anything so I'll type it...

    (Sticker on top)
    20060629
    252 W5032P4 TO295 BB

    (sticker on bottom)
    W5032P4
    LA SL HON TRX250/295 72.95m-2874CD


    clear: 0.0020(0.051mm)
    2874CD CW18
    012306/3/t/1545 Replaces: 8001P7295

    Ok there's all the info on the piston, I guess it's a 72.95mm bore? Don't see that on wiseco's website. Could I just call them and ask if they have or can make that size for a 1985 250R engine????
    "I have but one lamp by which my feet are guided, and that is the lamp of experience." -Patrick Henry

    NEW ENGLAND ATC owners please join!:http://www.3wheelerworld.com/group.php?groupid=27
    Reply With Quote Reply With Quote
  3. 09-07-2006, 07:52 AM #33
    Erics350x's Avatar
    Erics350x
    Erics350x is offline Power User Got the holeshot
    Join Date
    Apr 2006
    Location
    Crestview, Florida
    --
    2,429
    i wouldnt go grinding on a piston thats asking for trouble down the road.
    Reply With Quote Reply With Quote
  4. 09-07-2006, 08:21 AM #34
    Billy Golightly's Avatar
    Billy Golightly
    Billy Golightly is offline Always finding new and exciting ways to not give a hoot in hell Catch me if you can
    Join Date
    Sep 2002
    Location
    Live Oak, FL
    --
    15,070
    Blog Entries
    14
    You can order the big bore pistons from ESR and I believe Nacs racing. Just because Wiseco doesnt sell it out of their catalog doesnt mean they dont make them
    Reply With Quote Reply With Quote
  5. 09-07-2006, 09:03 AM #35
    Pete
    Pete is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Dec 2003
    Location
    Lino Lakes, MN
    --
    229
    the bummer about the 310/330/370 pistons is that they are NOT cheap!
    Reply With Quote Reply With Quote
  6. 09-07-2006, 09:07 AM #36
    SYKO's Avatar
    SYKO
    SYKO is offline Check my feedback before buying from me Catch me if you can
    Join Date
    Jul 2006
    Location
    United States
    --
    7,765
    hey has any one ever used that 440 kit from LA SLEEVE? I was looking at it, and damn if that would be awesome! (didnt meen to rip this thread)
    Reply With Quote Reply With Quote
  7. 09-07-2006, 09:13 AM #37
    ChrisD's Avatar
    ChrisD
    ChrisD is offline Roostin' Away Arm chair racerRoostin Away
    Join Date
    Aug 2002
    Location
    New York
    --
    1,098
    You have a piston from LA Sleeve.....

    from their site:

    Hi-Performance Forged Big Bore Piston


    Part Number W5032PS
    Fits 1987-1989 Honda TRX-250R
    Your Price: $160.00

    The ATC piston is part number :

    Hi-Performance Forged Big Bore Piston


    Part Number W845PS

    Fits Vehicles:
    1985-1986 Honda ATC-250R
    1986 Honda TRX-250R
    Your Price: $149.95

    For a forged piston:

    http://www.lasleeve.cc/index.cfm?pro...uct_type_ID=18

    You have the 87-89 piston. "S" at the end of the part number denotes the size of the overbore. It is replaced with a number.

    They also have cast pistons too:

    http://www.lasleeve.cc/index.cfm?pro...uct_type_ID=17

    Good Luck!
    Reply With Quote Reply With Quote
  8. 09-07-2006, 11:28 AM #38
    hrc85250r's Avatar
    hrc85250r
    hrc85250r is offline Someone put sand in my panties. Roostin Away
    Join Date
    Jun 2004
    Location
    potsdam ny
    --
    1,227
    just get a rod kit 88/89...its cheaper...
    1985 Honda ATC250R drag trike with s/t kit and full drag CR hybrid motor and drag chassis...
    1986 Honda ATC250R daily rider fully modded engine, +4 swinger,etc...
    1997 Polaris Storm 800 triple, boyesen reeds, dg individual silencers, 240 studs, 123mph on radar...
    Reply With Quote Reply With Quote
  9. 09-07-2006, 03:03 PM #39
    250r'en +TCB's Avatar
    250r'en +TCB
    250r'en +TCB is offline Power User Roostin Away
    Join Date
    May 2005
    Location
    Southern NH
    --
    1,489
    Called LA sleeve and I need a W845P4 piston for 149.95 plus shipping, proubly get like 2 or 3 day shipping cause I'm imaptient lol

    Thanks agian ChrisD!!! One day I'll have to try and venture out to NY and give you a run for your money on the ice Or maybe I'll see you at TF 07???

    Thanks guys for all your help! I'll post pics when she's installed!
    "I have but one lamp by which my feet are guided, and that is the lamp of experience." -Patrick Henry

    NEW ENGLAND ATC owners please join!:http://www.3wheelerworld.com/group.php?groupid=27
    Reply With Quote Reply With Quote
  10. 09-07-2006, 06:42 PM #40
    badasskfx's Avatar
    badasskfx
    badasskfx is offline Got The Holeshot Arm chair racerJust too addicted
    Join Date
    Aug 2006
    Location
    new hampshire
    --
    914
    you going to be ready for the nh r+r beds?
    1982 ATC 70
    1983 ATC 200E yard rat
    1984 ATC 200X
    1984 ATC 200S (X2)
    1985 ATC 70 (X2)
    1985 ATC 200S
    1985 ATC 250R
    1986 TRX 70
    1986 ATC 350X
    2004 kfx 700 XC
    2006 prarie 700 XC
    2009 Brute Force 750
    2020 CF Moto 600
    Reply With Quote Reply With Quote
  11. 09-08-2006, 07:21 PM #41
    250r'en +TCB's Avatar
    250r'en +TCB
    250r'en +TCB is offline Power User Roostin Away
    Join Date
    May 2005
    Location
    Southern NH
    --
    1,489
    Here's the new piston before I install it. My dad walked up to me and said "So I'm guessing this is gonna up the HP a little huh???......... Just made that assumption when I compared the honda piston to this one and realized it was about 1/4 bigger........" hahahaha I just answered with "good guess....."


    Anyway the guy i bought this from said i can run the OEM honda head, but I'm not sure about the OEM head gasket...... It sticks out in the cylinder about an 1/16 of an inch......... Is that ok????? Should I try and trim it first or is it ok??
    "I have but one lamp by which my feet are guided, and that is the lamp of experience." -Patrick Henry

    NEW ENGLAND ATC owners please join!:http://www.3wheelerworld.com/group.php?groupid=27
    Reply With Quote Reply With Quote
//ArrowChat Integreation Code //