slight misfire at 2500 ish revs

[BlueBird]

as my other gs is currently under going a rebuild ive got the spare out, dont ask how I ended up with 2 but it wasnt planned,
its developed a misfire low down, its at town speeds and very annoying,
it starts fine and ticks over but when you ride it it then gets this misfire.

I tried this so far,
replaced plugs,
replaced all coils,
reset tps,
valves and ref are spot on,
checked all connectors.

Noticed that lower plug on left cylinder was black and sooty,will check this again after a good ride today.

Done all the searches and cant find anything to look for except doing the stepper motors.
I dont have a gs911 so next is dealer to connect to GT1 and see if that shoes anything
any ideas

 

[autogs]

replace the lambda sensor on the sooty plug side

 

[Pukmeister]

replace the lambda sensor on the sooty plug side

What he said.

 

[Bendy toy]

The lambdas are all that's left but you could swap them left/right to prove the problem. Missfiring side will have a cooler exhaust header pipe.

 

[BlueBird]

It was the right hand throttle cable coming from the splitter box, it had come out of the box, sending the throttle bodys out of sync, I must have dislodged when bleeding the brakes.

Thanks for the input

 

[Pukmeister]

It was the right hand throttle cable coming from the splitter box, it had come out of the box, sending the throttle bodys out of sync, I must have dislodged when bleeding the brakes.

Thanks for the input

I should have thought of that. Thanks for the reminder and glad you got it all sorted.