Results 1 to 6 of 6

Thread: Bike problems!

  1. #1
    Join Date
    7th December 2009 - 21:39
    Bike
    1991 Yamaha FZR
    Location
    Waitakere
    Posts
    3

    Bike problems!

    Hey guys,

    I just got my licence and my first bike - an FZR250, it's an awesome bike to ride but I'm constantly having problems with it stalling and then not starting again very easily.

    Usually after it stalls the only way I can start it again is by hitting the start button and fully opening the throttle just to get it to idle - usually I have to hold it open for a few minutes then it will start to rev again.
    The bike tends to go fine after that if it's on the flat or going down-hill but if it has to go up it will generally rev fine but when I release the clutch and start going up the hill it loses power and stalls again.

    The bike doesn't have a fuel pump but gravity feeds, so I'm wondering if that might be the cause of part of the problem but I'm also thinking that maybe the EXUP valve isn't functioning properly.

    If anyone could tell me what's wrong and what I could do to fix it I'd really appreciate the help, cheers.

  2. #2
    Join Date
    19th January 2006 - 19:13
    Bike
    mutton dressed up as lamb and a 73 XL250
    Location
    On any given sunday?
    Posts
    9,032
    Sounds like its flooding,can you smell fuel?Take the carb of and check out float etc,probably sticking.
    Be the person your dog thinks you are...

  3. #3
    Join Date
    13th April 2007 - 17:09
    Bike
    18 Triumph Tiger 1050 Sport
    Location
    UK
    Posts
    3,802
    It doesn't sound like an awesome bike to from what you desribe. It sounds like a problem with the choke still being on slightly?

    You need to check your carb jets are clean.
    Your spark plug gap is correct
    Your contact breaker points have the right gap.

    Once you have checked those basics, let us know what is then going on.
    (bet it's the choke - )

  4. #4
    Join Date
    8th November 2004 - 11:00
    Bike
    GSXR 750 the wanton hussy
    Location
    Not in Napier now
    Posts
    12,765
    Sure sounds fuel related.
    Could be a number of reasons. Either too much or not enough fuel.
    One thing to check is that the tank is venting properly. Under increased throttle, you use more fuel...and if you have a vacuum forming in the tank, this is when it'll show up.
    Is there a filter in the line? Replace it.
    Do you realise how many holes there could be if people would just take the time to take the dirt out of them?

  5. #5
    Join Date
    31st July 2008 - 12:29
    Bike
    Thumpapotamus
    Location
    Tauranga
    Posts
    383
    OK so FZR's should have fuel pumps.
    If the engine is warm you'll need to open the throttle atleast 1/3 open to start but not full open.
    maybe check you Idle Air Screws.
    Resistors in leads may need a clean and Coil spade terminals too.
    Spark plugs looking at wont hurt. no 3 (from left) collects water if out in rain, lean bike to right to drain.
    Get yourself a 3LN manual from FZR250.com

    or save yourself a headache and take to the shop.

  6. #6
    Join Date
    7th December 2009 - 21:39
    Bike
    1991 Yamaha FZR
    Location
    Waitakere
    Posts
    3
    Thanks alot guys! I'll see what I can do

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •