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Thread: 8/07 camshaft

  1. #1

    Default 8/07 camshaft

    Hello,

    i'm searching for 8/07 camshaft the camshaft can have worn out sealing area but lubes must be ok.

    Thanks !

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  3. #2

    Default Re: 8/07 camshaft

    They are extinct! I bought them out about 5 years ago, best suggestion I have is Calflash has a shop the grinds them down, hard chromes is and regrinds the chrome to OEM size. Probubly not to pricy if you take in a dozen and quite pricy if you take in one but I would check with him and see where he is on that
    other option is to off set the seals slightly when you press them in so they are moved over slightly
    [URL=http://www.djhcyclesport.com
    Former Husky Dealer in the '70's, currently Sell Real Estate, Seattle area and as a hobby business I manufactor cam chain tensioners for the KTMs, do Carburetor modification & setup and valve work on KTM & Husky 4 strokes. Full stock of parts for the KTM's. My rides are; Cadillac Escalade (the 1/2 pickup version), 72 ElCamino 454SS, and Triumph 1050 Sprint ST, Iron Butt member

  4. #3
    Lifetime Team KTMTalk caflash's Avatar
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    Default Re: 8/07 camshaft

    I will look to see if I have ones I would sell if you like...
    Rfs DocBob

    Current: rebuild 560 smr motor
    520 to 613.p

    ALL rfs engines available....other than 250s


    2004 613 rfs titled
    2002 520 rfs titled
    2005 483 rfs titled
    1996 620 lc4 titled
    (2)2007 613's in the works

  5. #4

    Default Re: 8/07 camshaft

    i will make a sleeve and plasma nitrated it to 1100hv then hot cold put together and grind it to spec. this would solve the sealing area for ever.

    So i hope

  6. #5

    Default Re: 8/07 camshaft

    Quote Originally Posted by caflash View Post
    I will look to see if I have ones I would sell if you like...
    thanks please let me know

  7. #6

    Default Re: 8/07 camshaft

    Cams are Ultimately a personal choice I have ran stock cam Bobs copy cam, 8/33 cam 8/07 cam and Thumper racing stage 5 cam. Both in the 570 99mm piston and 590 102mm piston Of all those the 8/07 was my least favorite.
    2017 500 exc-f 4.5g IMS, tubliss front and rear, vortex ECU PMB exhaust 14x48 gearing.

    SOLD...2005 588cc exc 102mm ultra light crank 3,775 grams welded frame
    head stay mild port job 41mm carb 8/33 cam trail tech -8 fly wheel trail tech Dc stator, ca street legal, sx exhaust with quiet incert 08 Nost suspension , gpr dampner 14mm clamps tubliss front and rear, squadron xl led headlight.

  8. #7

    Default Re: 8/07 camshaft

    Quote Originally Posted by natekidd View Post
    Cams are Ultimately a personal choice I have ran stock cam Bobs copy cam, 8/33 cam 8/07 cam and Thumper racing stage 5 cam. Both in the 570 99mm piston and 590 102mm piston Of all those the 8/07 was my least favorite.
    really what was wrong with 8/07

    Thanks !

  9. #8

    Default Re: 8/07 camshaft

    Nothings wrong with it, it may fit your set up and riding style just fine. my experience with it I ran it with a 102mm piston stock 12:1 compression, and 41mm carb, It had the weakest bottom end felt and when the power cam on it was a harsh transition. Kind of like a 2 stroke. TR stage 5 is a much better option it has more power bottom to top and is smooth and easy to ride. I would choose any other cam to run over the 8/07 for dual sport and trail riding.
    2017 500 exc-f 4.5g IMS, tubliss front and rear, vortex ECU PMB exhaust 14x48 gearing.

    SOLD...2005 588cc exc 102mm ultra light crank 3,775 grams welded frame
    head stay mild port job 41mm carb 8/33 cam trail tech -8 fly wheel trail tech Dc stator, ca street legal, sx exhaust with quiet incert 08 Nost suspension , gpr dampner 14mm clamps tubliss front and rear, squadron xl led headlight.

  10. #9
    Lifetime Team KTMTalk caflash's Avatar
    Join Date
    Oct 2002
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    San Juan Capistrano
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    Default Re: 8/07 camshaft

    The 8/07 cam was made for the 78mm stroke X 100mm 613 engines. The factory and GWR found that the cylinder filling efficiency was less after 100mm without an increase in stroke. With the 78mm crank larger than 100mm bore worked very well. 102 and 103s

    I am sure some here know better than the pro builders and the factory but they never went past 100mm.

    the factory 576cc kit was a 78mm stroke crank and a 97mm cylinder.

    the 540sxs non import engine was stroked to get to 565. Bore stayed the same at 100mm
    Rfs DocBob

    Current: rebuild 560 smr motor
    520 to 613.p

    ALL rfs engines available....other than 250s


    2004 613 rfs titled
    2002 520 rfs titled
    2005 483 rfs titled
    1996 620 lc4 titled
    (2)2007 613's in the works

  11. #10

    Default Re: 8/07 camshaft

    at the moment i run 97mm sleeved cylinder with wossner 12.5:1,
    wossner conrod in 2003 525 sx crank with laser welded pin and ntn main roller bearings
    41mm carb
    1200 CDI
    bigger oil pumps 15mm scavenge and 12mm pressure pump
    del west titan valves with sintered iron guides
    older style head with smaller intage
    8/33 cam
    full akrapovic exhaust

    my gearing

    1 gear smr 16 tooth
    2 gear EXC
    3/4 gear MXC
    5,6 gear EXC

    main gearing 15/45

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