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Thread: Bike pulling left

  1. #16
    Join Date
    25th March 2004 - 17:22
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    RZ496/Street 765RS/GasGas/ etc etc
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    Wellington. . ok the hutt
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    Pity F1 engineering is so far away in Cameltron. I have a bike I'd like to get checked on their jig too.
    Don't you look at my accountant.
    He's the only one I've got.

  2. #17
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    28th May 2006 - 19:35
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    suzuki
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    lower hutt
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    unbolt the sidecar and go for a ride

  3. #18
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    9th November 2006 - 18:42
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    Ducati V4S Streetfighter
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    Quote Originally Posted by marty View Post
    i'd call road camber too. my busa always did that too - it's such a long wheelbase.
    Only happens when both wheels are touching the tarmac.

  4. #19
    Join Date
    26th May 2005 - 20:09
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    Prolight 250,XR4hundy
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    Murch....
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    It'll be because you'll have one arm shorter than the other
    Or one longer...
    The Heart is the drum keeping time for everyone....

  5. #20
    Join Date
    28th August 2006 - 22:14
    Bike
    2002 Hayabusa and 2001 Honda XR650R
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    Wellington
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    After checking many, many possibilities, three remain:

    1. Frame not straight - I really hope it's not this one 'cause I don't have the money to check and fix it. Also, this bike is my daily commuter so I can't afford to keep if off the road for days or weeks

    2. Bent forks - will be checking them shortly miself.

    3. Uneven oil level in the forks - does anyone know if I can check this without completely disassembling the forks (like the manual says)?

    4. Fucked/damaged damping valve(s) in one of the forks - have no ideea if this is possible and how to check for it (without full fork disassembly).

    Anybody know how / if I can do points 3 and 4 without disassembling the forks? I can easily remove the top fork cap but anything after that (spring removal, etc...) involves tools that I don't have so will have to be done at the shop which means money that I don't have - just bought a new set of tires for the bitch.

  6. #21
    Join Date
    25th March 2004 - 17:22
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    RZ496/Street 765RS/GasGas/ etc etc
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    Wellington. . ok the hutt
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    I'd ignore 3 & 4. I can't see it puling to one side or another as a result. That front end is pretty well tied together.

    You could also try putting a spirit level on one wheel or disc till the bike is upright, then on the other wheel to see that it is in the same plane.
    Don't you look at my accountant.
    He's the only one I've got.

  7. #22
    Join Date
    28th August 2006 - 22:14
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    2002 Hayabusa and 2001 Honda XR650R
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    Wellington
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    Took the forks off today and did a basic check on them.

    The only thing I found was the rods (the thinner half of the fork) seem to be slightly bent to one side - both forks in the same direction. However, I don't know if this bent is big enough to make a difference: with a straight rod secured to the thicker half of the fork and running in parallel to the rest of the fork, the distance between the rod and the fork at the end of the suspension travel part (where the wheel axle mounting unit is "glued" to the fork) variates about 2 mm.

    Would this be enough to create my problems?

  8. #23
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    9th June 2005 - 21:05
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    blackbird,africa twin,xt600,xt 600tenere
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    chch
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    Bet you its a bent fork,had the same problem with mine pulling to the left and it looked ok till I stripped it and found a kink in the fork.Checked everything same as you did......

  9. #24
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    7th May 2006 - 00:35
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    Quote Originally Posted by centaurus View Post
    After checking many, many possibilities, three remain:

    1. Frame not straight - I really hope it's not this one 'cause I don't have the money to check and fix it. Also, this bike is my daily commuter so I can't afford to keep if off the road for days or weeks

    2. Bent forks - will be checking them shortly miself.

    3. Uneven oil level in the forks - does anyone know if I can check this without completely disassembling the forks (like the manual says)?

    4. Fucked/damaged damping valve(s) in one of the forks - have no ideea if this is possible and how to check for it (without full fork disassembly).

    Anybody know how / if I can do points 3 and 4 without disassembling the forks? I can easily remove the top fork cap but anything after that (spring removal, etc...) involves tools that I don't have so will have to be done at the shop which means money that I don't have - just bought a new set of tires for the bitch.
    Don't rule out rear swing arm being slightly bent either and also dont just check the alignment front to rear also as verticle alignment also has a bearing on direction, if your tyre (fromt or rear) is at an angle to the road surface it will try to climb.
    Has it ever bothered you that Therapist is The Rapist if you break the word in two? It bothers me, especially when they suggest hypnosis.

  10. #25
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    5th November 2007 - 14:46
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    BMW
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    hamilton
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    Man i went down this road with my race bike! My problem was everything we looked at was bent so I couldnt tell you which piece actually fixed the problem haha

    We had a bent frame, bent forks, bent wheels and triple clamps haha Im pretty sure the last thing we replaced was the forks and that fixed the problem

  11. #26
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    9th January 2005 - 22:12
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    Street Triple R
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    christchurch
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    Quote Originally Posted by Reckless View Post
    Shivers mate sounds like you've checked all things that any normal guy can check and I'm a panelbeater by trade. IF I had to take an "internet" guess I'd say its in the front somewhere from your last post????

    My only other suggestion is to take it to the guys that certify a bike that's been crashed and de-registered then fixed. They have the equipment to check the chassis and probably a lot of knowledge in this area.

    My guess is its something very simple you have missed like an unseated axle or its bent somewhere.
    Good luck let us know how you go!
    what he said.

    not sure who that is in Wellington.

    my neighbour has a CBR1000RR that be bought as a damaged writeoff. first thing on getting it back on the road was to get it laser aligned. I think it cost him 400 plus GST? something like that. they do it with (Dr Evil voice on) "lasers" or something. (Dr Evil voice off)
    I thought elections were decided by angry posts on social media. - F5 Dave

  12. #27
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    9th June 2005 - 21:05
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    blackbird,africa twin,xt600,xt 600tenere
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    chch
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    Definately your forks,now you have to strip the forks and do a runout check.....roll the shiny silver bits on a flat surface to see how much it wobbles....2 mm is a lot of differance...

  13. #28
    Join Date
    30th March 2004 - 21:29
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    GL1800
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    Matiere, King Country
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    Had a similiar problem but found it was only while riding past bottlestores and bars, worth a check
    "If you haven't grown up by the time you turn 50, you don't have to!"

  14. #29
    Join Date
    28th August 2006 - 22:14
    Bike
    2002 Hayabusa and 2001 Honda XR650R
    Location
    Wellington
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    359
    After removing the forks and installing them back, things are better. I also found a plastic label on one of the forks that was caught in the lower triple clamp. It is possible that was changing the alignment too.

    Now, at high speeds it's almost unnoticeable. If I take my hands off the bars it will still go one side, but while normal riding, the pull is so small, it doesn't feel more difficult taking left hand corners.

    The bend in the forks that I have seen must be from the factory. Neither the frame or the forks have any scratches to point to a crash and the bike's history is clean (was first registered in NZ).

    For the moment it's good enough for me. Instead of spending thousands of $$ trying to get it perfectly straight, as long as the problem is small enough, I prefer spending the money on petrol and tyres.

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