2002 Triumph Trophy1200

Discussion in 'Technical Help' started by rob1961, Jun 25, 2017.

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  1. rob1961

    rob1961 New Member

    Apr 21, 2017
    3
    3
    stirling, scotland.
    Hi I am looking for some advice when my bike is first started it runs fine, but when it is hot in low revs it is like kangaroo petrol. I have used a fuel additive but it hasn,t made any difference I would be greatfull for any input.Regards Robert
     
  2. MickEng

    MickEng Noble Member

    Sep 29, 2016
    1,805
    450
    West Yorkshire
    Welcome to the forum Rob.
    You're not using that new'Buckaroo' Australian petrol are you ? lol
    It's either your ignition timing that is slightly out or your carburation.
    A good clean out of the carbs would be my first task.
     
  3. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,064
    1,000
    Central France
    Hi Rob, you're not trying to run too slow in to high a gear are you? At what revs do you normally change gear when you're going up the 'box 12,3,4, etc
     
    • Useful Useful x 1
  4. rob1961

    rob1961 New Member

    Apr 21, 2017
    3
    3
    stirling, scotland.
    it is not that as it happens in 1st gear plus when it is hot it doesn't tick over very well and often cuts out
     
  5. Oldyam

    Oldyam Grumpy Old Git

    May 14, 2017
    613
    500
    ireland
    Is the choke coming off fully ?
     
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  6. Rocker

    Rocker Elite Member

    May 1, 2016
    1,662
    800
    Suffolk
    Blocked air filter?
     
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  7. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,452
    800
    East Riding of Yorkshire
    Sounds like the crank position sensor is failing. If the bike runs ok when cool but starts to play up when hot and then runs ok again again when left to cool down somewhat, then it will almost certainly be the cps. This is not an unknown fault apparently.
     
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    • Agree Agree x 1
  8. steve lovatt

    steve lovatt Something else

    May 12, 2014
    9,212
    1,000
    North Yorkshire
    Hi and welcome - agree with Steve :)
     
  9. rob1961

    rob1961 New Member

    Apr 21, 2017
    3
    3
    stirling, scotland.
    I have studied the Haynes manual for my bike and can't find any mention of a crankshaft position sensor for this model
     
  10. Oldyam

    Oldyam Grumpy Old Git

    May 14, 2017
    613
    500
    ireland
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  11. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,452
    800
    East Riding of Yorkshire
    • Useful Useful x 1
  12. rob1961

    rob1961 New Member

    Apr 21, 2017
    3
    3
    stirling, scotland.
    Do you know where to locate the cps on the bike and is there a simple test which can be done to see if it is faulty
     
  13. Sprinter

    Sprinter Kinigit

    Aug 17, 2014
    6,027
    1,000
    uk
    isnt it in the clutch casing?
     
  14. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,452
    800
    East Riding of Yorkshire
    Small black wire exiting clutch cover at about 1 o'clock position (ish!), then running back behind the breather pipe toward the air filter box.
    Don't know of a specific test to check its health, but I guess that checking the connections etc wouldn't hurt.
     
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  15. rob1961

    rob1961 New Member

    Apr 21, 2017
    3
    3
    stirling, scotland.
    is it an easy fix or is there anything complicated in fitting a new one
     
  16. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,452
    800
    East Riding of Yorkshire
    Never had to do it on mine (kiss of death there!) but it seems probably more fiddly than difficult. But you need to leave an air gap between the rotor and the pick up itself - according to Mr Haynes Book of Fairy Tales that should be 0.6 to 0.8 mm - it says here!
     
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  17. Sprinter

    Sprinter Kinigit

    Aug 17, 2014
    6,027
    1,000
    uk
    so you need feeler gauges
     
    • Agree Agree x 1
  18. rob1961

    rob1961 New Member

    Apr 21, 2017
    3
    3
    stirling, scotland.
    As tonight was the first dry night we have had all week I went out and tried to locate the cps then noticed the breather pipe was not connected to the air box so I fixed this and wonder if this could have been the problem all along
     
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  19. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,452
    800
    East Riding of Yorkshire
    Wouldn't have helped. Cheap fix if that is the case - and one for my memory banks!
     
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