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johnmc408

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  3. Anyone Make Up Their Own Ossa Diagnostic Cable?

    in OSSA

    Posted

    Found a full datasheet on the cable:

    http://www.ftdichip.com/Support/Documents/DataSheets/Cables/DS_USB_RS232_CABLES.pdf

     

    According to the web, some cables come with a unique ID burned into it them. 

    Not sure you can burn this ID yourself if you purchase a new cable though.

    And then not sure if they use that ID as part of a larger software system...

     

    If the software is free and isn't tied to a specific cable (or we can re-use an ID), I am hopeful somebody will have success.

     

    ---

     

    When I took my explorer to the mountains, I had to manually adjust the throttle position bolt/nut...to keep the bike from stalling.

    I think the preferred way is to use the software...so would be great to have that option!

     

     

     

  4. Front Wheel Won't Spin When Tighening Axle Nut

    in Gas Gas

    Posted

    Thanks Jim, that makes sense.  Because the Sherco uses 37 foot pounds on that nut and the prior owner of the Pamp had a blob of "glue" on many nuts, I didn't get a great feel for how tight it was screwed on (it is a BIG nut after all ;-)

     

    I am sure the axle won't come out as it is in there pretty tight, but I might put some blue locktite or some glue to make sure the nut doesn't fall off.

     

    BTW I have 1 pinch bolt on left and 2 on the right (when looking at the bike).  The pink slip says 2003, but when I did the VIN decode it was made in Oct 2002.

    It is a very fun bike!

     

    Thanks again

  5. Front Wheel Won't Spin When Tighening Axle Nut

    in Gas Gas

    Posted

    (2003 Pampera)

     

    Hi, I removed the front axle to look at the brakes and their overall condition and after I put the axle back on, when I tighten the nut (even a bit), the wheel stops spinning.  I have done this before on my Sherco trials for a tire change, so I wasn't expecting any problems...

     

    I did notice that the left side of the axle has mushroomed out a bit probably due to hitting it.  It is probably 1/8inch out from flush.

     

    The only thing I can think of is to get a new axle and see if this helps.

    Wanted to check before I purchase.

     

    Thanks!

     

     

     

  7. Tube And Tubeless Question

    in Gas Gas

    Posted

    Hi, just got a 2003 Pampera and the rear tire says tubeless and the front say tube.  They are Maxxis - Trial Maxx tires.

     

    If I am riding slow (& no jumps), can I run at 8psi(USA) in the front and 5psi in the rear?  (My first ride I put in 12psi in the front/back and wouldn't mind it a bit lower).  I have a Sherco trials bike and run 7-8 in front and 4-5 in back.

     

    Would like to know the lower limit and then I'll raise it up, depending on the terrain, rocks, and speed I am riding.

     

    Thanks!

  11. 2002 Pampera 280 - Fluid Questions:

    in Gas Gas

    Posted · Edited by johnmc408

    The manual says 10W40 750cc.  The Internet says ;-) 650cc if just an oil change.  And I have seen 10W30 as well.

    Other posts recommend ATF (F? or Dexron3?) as that seems common for GG trials.  It *looks* like ATF is in there now (red-ish)

    I haven't heard of 10W40 for a trials bike, so I thought I would double check.

     

    Right now the clutch is "grabby" in first gear when riding a figure 8 (so bad it is kinda hard to do at idle speed).  The bike probably had been sitting for 3-4 months.  Wondering what is updated wisdom on this before I change out the oil.

     

    ------

     

    Also, the manual says this for gas/oil ratio:

    A semi-sintehetic or synthetic oil for twostroke engines should be used for the oil-fuel mixture, with a ratio of 1,5.

     

    Does this mean 50:1 or 80:1?  I have an older trials bike that is 80:1, would be great to use that.  Or maybe both at 70:1?  Not sure how sensitive these bike are to the ratio...

     

    ------

     

    Thanks!

  15. Ossa Tr280I Fi How It Works

    in OSSA

    Posted

    On adjusting the idle, I heard both "you can" and "you can't".

     

    I called up Adrian and he said you can adjust it w/o the SW or changing the TPS.  Maybe only minor adjustment?  Don't know.

     

    I did mine today and seemed to work fine. I am bringing it to the mountains and am hopeful that it will run good!

     

    ---

     

    To adjust it, you use a 7mm wrench to loosen the nut on the throttle anchor stop (right side).  With the nut loose, you use needle nose pliers to move out the  threaded bolt to adjust the "stop" in/out...so that the throttle really just doesn't close.  Very mechanical ;-)

     

     

  18. Oil Filler Cap (For Temp Usage)

    in OSSA

    Posted · Edited by johnmc408

    Ossa Explorer/TR280i:

     

    I have an order for one of these, but in the meantime, is there another brand that might fit (KTM, Yamaha, etc.)?

     

    Both of my bikes are broken, and am trying to get one ready for the 3 day weekend !!!

     

    Thanks!

  20. Ossa Tr280I Fi How It Works

    in OSSA

    Posted

    Does anyone know if any riders at SactoPits have the SW and cable?  I am wondering if I went to an event I could get a quick check and then compete in an event ;-)    LS can be difficult to get to as they are Mon-Thu I think

  22. Explorer - Low Fuel Lite Comes On Too Quick (I Think)

    in OSSA

    Posted

    Thanks Mark, just to double check, the fuel from the "top tank" drains from the underside of the "top tank" into the "bottom tank", right?

    The air hose between the tanks, allows air to circulate between tanks and does not pass fuel, right?

    The top tank is the only one with a breather hole (yea it leaks ;-)

     

    I do think it ran out of gas once I turned around. It could have been the poor idle, so I am not sure.

     

    If all else fails, I'll just fill up the lower tank manually with a hose.  I did have one in my pack, and if I was really stuck, I assume I would have noticed that I had lots of gas in the top tank.  Fortunately once I got it started, I made it back.

     

    thanks again

    -john

  25. Explorer - Low Fuel Lite Comes On Too Quick (I Think)

    in OSSA

    Posted

    Thanks!

     

    I don't have the vacuum stuff at the moment, but I did find:

     

    The bottom tank was full (I could see the gas).  If the manual is correct, it is .70 gallons in there.

    The top tank also had some gas, so I removed it and poured it into a can.  Maybe 1 gallon (might have messed up my counting ;-)

     

    So, tons of gas, why did the light turn on...

     

    Since you mentioned vacuum, does the top tank drain into the lower tank because of vacuum?

    If so, I might have idea.  The bottom fuel tank cap has a brass hose attachment to connect the "fuel tank air hose"

    7 9435010512 ALUMINIUM FUEL TANK CAP 1

    That brass hose attachment swivels freely and can be removed.  It is NOT air tight.  I assumed that gravity moved the

    gas between tanks, but I don't know.  The parts_diagram just shows 1 piece for the "aluminum fuel tank cap" and doesn't

    show the brass hose attachment...

     

    What does yours look like?  What do you think?  I'll take a picture tomorrow.

     

    Plus, if the bottom tank was always full, why would the low gas light come on?  It is possible that I rode ~5 miles on the

    bottom tank, the light came on and then blowing into the top tank started to push gas to the bottom tank.  After that,

    the low gas light did seem to not be as bright, but after it came on the first time, I was sure I was going to be a long walk from home,

    so might not remember correctly ;-)

     

    Strange things...

     

    ps (and a few more questions)

     

    I am in San Jose, Calif.

     

    Do you know if I can take off the "stuff" that need the software update and just send it to the shop?

    Or, do you have to hook it up and do the settings while it is running?

     

    And finally, is there any manual idle adjustment that might be "good enough" until I get the software done?

    Just want something to get by...

     

     

     

     

  
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