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2015 Street Triple - 28,000km.

I've been trying to figure this one out for a while now. When accelerating at normal pace my bike seems to have a slight hesitation around 4,000rpm (in any gear). If I hover around 4,000 I can sort of (ever so slightly) feel a slight hesitation. It's very minor but it bothers me (as does the damn rattle/ticking sounds).

If I'm on the throttle hard I don't feel anything at all.

Recent work done (last season):
  • valve adjustment at 20,000km (all exhaust valves re-shimmed)
  • new spark plugs & air filter
  • balance throttle bodies via DealerTool
  • Ran TuneECU adaptation thing
  • New chain and sprockets (issue was present before new chain + sprockets)
Would a stretched cam chain cause this? Why only at around 4,000 rpm?

Appreciate any tips/help.
 

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Registered
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2015 Street Triple - 28,000km.

I've been trying to figure this one out for a while now. When accelerating at normal pace my bike seems to have a slight hesitation around 4,000rpm (in any gear). If I hover around 4,000 I can sort of (ever so slightly) feel a slight hesitation. It's very minor but it bothers me (as does the damn rattle/ticking sounds).

If I'm on the throttle hard I don't feel anything at all.

Recent work done (last season):
  • valve adjustment at 20,000km (all exhaust valves re-shimmed)
  • new spark plugs & air filter
  • balance throttle bodies via DealerTool
  • Ran TuneECU adaptation thing
  • New chain and sprockets (issue was present before new chain + sprockets)
Would a stretched cam chain cause this? Why only at around 4,000 rpm?

Appreciate any tips/help.
Check fuel pump pressure 43psi…
 
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