stutter on steady throttle FI

[mikey devon]

HI all got a k8 when cold runs fine when warm at steady throttle at 3500 revs bike seems 2 stutter as you increase revs it smooths out any 1 any ideas been back 2 dealer 5 times they say its normal yeah right:rolleyes:

[gazza]

I would check the throttle position sensor is set correctly as 3500rpm was the engine speed that my bike ecu changed its fuel map, i believe it is meant to change at approx 1500ish rpm. Use the search facility to find the THROTTLE POSITION SENSOR set up thread. I carried out the mod and made a massive difference. The TPS may not be what is causing your problem but the general consensus of all who have done it is that it makes a big difference.

[Bluepete]

I'll second that Gazza. MIne stuttered around 3.5k, but the TPS mod sorted it right out. Makes town riding sooooo much easier!

[dual-power sv]

mine's done that for the 3months ive owned it, thought it was normal, definatly going to get it sorted this morning.

i'll let you knw mike if it sorts it out

[mikey devon]

thanks for yr help guys may have a go later on k8 there is 2 take it i need too adjust rear one:)

[Sid Squid]

Adjusting the TPS alone is pointless, check the throttle balance first.

On all FI bikes there are two TPS, the primary is the lower one.

[dual-power sv]

hey mike, ive just done mine, made loads of difference,
also i had my throttles balanced at 11k service only 2weeks ago.

[mikey devon]

Glad you sorted yrs DP did mine didn,t make any difference. its ok when cold prob starts when hot:confused:

[dual-power sv]

try getting your throttle bodies balanced and also if there are any mods to the fuel or ignitoin system (like a TRE) try running them without it as i took my TRE orr mainly cuz it doesnt make much difference and because even the 'smart' TRE's make them run like a bag of poop at times