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Thread: quick question

  1. #1
    Join Date
    Jan 2014
    Location
    leabnon tn
    --
    56

    quick question

    ok on a 200x are you supposto use rtv where the valve cover bolts to the head or is there a gasket cause I bought a full gasket kit and there wasent one for it
    94 chevy k 1500 350 5 speed 4x4 , 89 blaster ported with boysen ports 66mm naumra piston 21cc head dg pipe and silencer boysen dule stage pro reeds dg nerfs lowered 2" in the front and 2 1/2 in the rear yfz 450 wheels and kenda klaw tires wiseco crank and stock main bearings 12 42 sunstar sprocket rk chain oneal crome bars shorty clutch lever race cut seat , 1985 200x, 1984 200x high compression wiseco 1mm over xr200head 14/51 gearing , 1 beyond 150

  2. #2
    Join Date
    Jul 2009
    Location
    South Florida
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    6,811
    No gasket on the tappet cover , use hondabond or yamabond sealant their .
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  3. #3
    Join Date
    Jan 2014
    Location
    Massachusetts USA
    --
    782
    Permatex also makes a similar product called Motoseal. I have used that, as well as Yamabond, both are in my drawer of chemicals.
    1985 Tri-Z 250
    1985 ATC250R

  4. #4
    Join Date
    Jan 2014
    Location
    leabnon tn
    --
    56
    Well when you to tourk it down is the cam supposto spin freely because it's not
    94 chevy k 1500 350 5 speed 4x4 , 89 blaster ported with boysen ports 66mm naumra piston 21cc head dg pipe and silencer boysen dule stage pro reeds dg nerfs lowered 2" in the front and 2 1/2 in the rear yfz 450 wheels and kenda klaw tires wiseco crank and stock main bearings 12 42 sunstar sprocket rk chain oneal crome bars shorty clutch lever race cut seat , 1985 200x, 1984 200x high compression wiseco 1mm over xr200head 14/51 gearing , 1 beyond 150

  5. #5
    Join Date
    Jan 2014
    Location
    Massachusetts USA
    --
    782
    Yes, the cam should spin freely for maybe 80 degrees or so of rotation if the lobes are down. You won't be able to move it by hand once a lobe tries to open a valve against the spring pressure. I hate to ask, but are the head and the cover an original matched pair? The cam journals are machined after the cover and head are cast and machined, so mixing and matching heads and covers results in out-of-round cam journals.
    1985 Tri-Z 250
    1985 ATC250R

  6. #6
    Join Date
    Jan 2014
    Location
    leabnon tn
    --
    56
    Yes they are I took the dr head off and put the stock head and cover on and I know there good because the bike I took it off was running
    94 chevy k 1500 350 5 speed 4x4 , 89 blaster ported with boysen ports 66mm naumra piston 21cc head dg pipe and silencer boysen dule stage pro reeds dg nerfs lowered 2" in the front and 2 1/2 in the rear yfz 450 wheels and kenda klaw tires wiseco crank and stock main bearings 12 42 sunstar sprocket rk chain oneal crome bars shorty clutch lever race cut seat , 1985 200x, 1984 200x high compression wiseco 1mm over xr200head 14/51 gearing , 1 beyond 150

  7. #7
    Join Date
    Jan 2014
    Location
    Massachusetts USA
    --
    782
    Sounds like something is not assembled correctly. Did you put the cam cover on the head with the cam already in place? I wonder if the right side cam bushing got cocked somehow and is binding.
    1985 Tri-Z 250
    1985 ATC250R

  8. #8
    Join Date
    Oct 2002
    Location
    Northeast
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    17,493
    You could be 180 out on the cam and hitting the valve with the lobe.

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  9. #9
    Join Date
    Jan 2014
    Location
    leabnon tn
    --
    56
    sorry its been a while but i got it sorted out i had the xr cam in the stock head i mesured it and it was a couple thousants bigger so im guessing that was my problem and i was also having a problem about it felt like somthing was binding it was the kick starter was binding up so i made another gasket to give it a lil more room and it works good the only problem i am having mow is its some times barley getting any spark but most of the time it doesent get any any ideas
    94 chevy k 1500 350 5 speed 4x4 , 89 blaster ported with boysen ports 66mm naumra piston 21cc head dg pipe and silencer boysen dule stage pro reeds dg nerfs lowered 2" in the front and 2 1/2 in the rear yfz 450 wheels and kenda klaw tires wiseco crank and stock main bearings 12 42 sunstar sprocket rk chain oneal crome bars shorty clutch lever race cut seat , 1985 200x, 1984 200x high compression wiseco 1mm over xr200head 14/51 gearing , 1 beyond 150

  10. #10
    Join Date
    Mar 2010
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    Slidell, LA
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    Make sure your pulse air gap setting is correct.
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