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Thread: 200x fork pressure capacity?

  1. #1
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875

    200x fork pressure capacity?

    I was wondering if anyone here knew how much the maximum ammount of air pressure should be in the forks on a 1985 200x? I have been riding it with 15 psi, and it seems a little soft on some of the jumps. I dont want to put too much air into them, because I am afraid they might explode. Let me know what you think. Thanx.
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  2. #2
    Join Date
    Jan 2003
    Location
    Ashland City, TN
    --
    2,576
    I dunno about a 200X, but I think the sticker on my Tri-Z tells me not to go past like 5 lbs of pressure.
    Trikes:
    1973 Honda ATC70-orange!
    (2)1985 ATC70
    1985 Big Red 250
    1985 250R

  3. #3
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875
    Anyone know for sure?
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  4. #4
    Join Date
    Feb 2003
    Location
    California
    --
    623
    15psi and its soft on some jumps. o My clymer say's don't go past 10psi. shock

  5. #5
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875

    oil

    Okay, I bought 10 wieght oil and the Honda shop, couldnt find 15. I drained the old oil out, and put new in. I was told to put 7 ounces in each fork, and did so. It helped a little to make it stiffer, but I was wondering if that was the right ammount? What is the maximum ammount I could put in? I dont have a manual, so maybe someone here can help me. Thanx.
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  6. #6
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875
    Would it help to make the front forks stiffer if I put more oil in?
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  7. #7
    Join Date
    Sep 2002
    Location
    Detroit, MI
    --
    837
    You are supposed to let your forks hang down with no weight on them and air them up. If your doing that then never mind what I said but I thought it may help... Maybe your forks need a re-build.
    1986 ATC 250R(for sale), 1963 AceCraft boat w/40HP Evinrude, 1981 Arctic Cat El Tigre' 440 L/C, 1992 GMC Safari Van.

  8. #8
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875

    200x

    i have to run it with 15psi, because 10 (maximum ammount) is way too soft for the forks. You wouldnt think the seals are bad, because it holds air. I put a little more oil in the forks today (2 oz. or so) and put 15psi back in. It seems a little stiffer now. I wonder what 30 weight oil with progressive springs would do? twisted
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  9. #9
    Join Date
    Oct 2002
    Location
    Fresno Ca
    --
    2,695
    my mechanic says not to go above 10 if you go anymore than that you are guarinteed to blow the seels

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