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Honda Spada VT250

Discussion in 'Honda 250cc Twins' started by marc, Mar 8, 2014.

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  1. marc

    marc Member

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    runs again but idols rough and hates cold starts not too bad when its warm starts quite good any ideas ?
     
    marc, Apr 14, 2014
    #21
  2. kiffsta

    kiffsta Senior Member

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    Valve clearances
     
    kiffsta, Apr 14, 2014
    #22
  3. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    My thoughts too. A lot of tuning issues come back to incorrect valve clearances. Valve too tight (particulary exhaust) will cause a 'half miss' until the cylinder head heats up and expands enough to allow some clearance. Too loose and the rocker or cam will be pounding on the valve stem sounding like a hammer hitting the cylinder head. It is always wise to check the clearances before stripping the engine looking for mechanical faults or before trying to tune carburettors.
     
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    Murdo, Apr 14, 2014
    #23
  4. marc

    marc Member

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    how do i set valve clearences never done them in my life time wouldnt know where to start

    to get it going when its cold i need to wind the idol screw up or it wont start once its going rides perfect just seems to have a miss on idol but if i leave it for a day or 2 when the idol was set up i have to wind it up again for some reason
     
    Last edited by a moderator: Apr 19, 2014
    marc, Apr 19, 2014
    #24
  5. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    I've never seen inside a Spada, so cannot advise you. Go to the manuals section and it may tell you how to check them.
     
    Murdo, Apr 19, 2014
    #25
  6. marc

    marc Member

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    so that would cause it too run rough on start up then ? and sound like its missing on idol ?
     
    marc, Apr 20, 2014
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  7. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Could do. Have fixed a few engines that have been 'unable to be tuned' by checking and adjusting the valve clearances.
     
    Murdo, Apr 20, 2014
    #27
  8. marc

    marc Member

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    doesnt want to start at all today some times sounds like the cogs are hitting each other unless its the valves hitting the pistons ?
     
    marc, Apr 22, 2014
    #28
  9. marc

    marc Member

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    any one know what this part is called ? cant seem to find it anywhere i thought it was timing wheel but nothing comes up when i try and search it need to replace it as a couple of fins are damaged on there takes ages to get it started still once warm starts easy
    IMG_20140414_130515.jpg
     
    marc, May 2, 2014
    #29
  10. XCite Bikes

    XCite Bikes Parts and Accessories Staff Member 250cc Vendor Contributing Member

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    XCite Bikes, May 3, 2014
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  11. marc

    marc Member

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    thanks will try there also when it comes to checking voltage from battery when running what should it be between 13.6 and 14.5 wont go no higher than that on revs with bike off it is 13.98 when bike is off is this too much ?
     
    marc, May 3, 2014
    #31
  12. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    GreyImport, May 3, 2014
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  13. marc

    marc Member

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    dont need to worry about it now the old girl is gone swapped her off for a 05 hyosung gv 250 aquilla
     
    marc, May 3, 2014
    #33
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