748-running problems.

Discussion in 'Technical Help' started by blue steve, Apr 28, 2013.

  1. Hi,could anyone please help.I'm having problems with the bike going over 7000.If you rev it or accelerate hard over 7000 it cuts out,but restarts when drops back below when riding.But when revving it just dies but restarts off the button.It ticks over and revs below 7 o.k.Any ideas? cheers Steve.
     
  2. Steve, when you say it cuts out do you mean just the engine, or does the rev counter and lights shut down as if the ignition switch is turned off? Also what model year is it
     
  3. hi i mean the engine cuts out it a 98 thanks
     
  4. could it be a dodgy earth / electrical connection? vibration related?
     
  5. Not entirely sure what you mean by 'cuts out' ,as Denzil mentioned, does the rev counter and lights shut down as if the ignition switch is turned off, or does it just completely loose power.

    Might be restricted fuel filter so the engine is cutting out due to fuel starvation, another possibility to consider is the petrol tanks' vent valve not working correctly having the effect of restricting fuel flow.
     
  6. Crank position sensor can give this type of fault.

    brian.
     
  7. I've known the TPS fail at certain throttle openings, be worth checking it.
     
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