Poor running and throttle cable query A10 SR

[MickFarmer64]

   Try  removing the big nut under the main jet to check for muck carried over and blocking fuel flow as you draw more fuel. The main jet can be unscrewed for inspection.

 For now it does not matter whether you have the "correct " cables or twistgrip. As long as the throttle slide can close fully without sticking, and the twistgrip can open the slide fully to reveal just the needle, then you can start the basic tuning procedure. Service sheet 708 gives an overview and specific fault finding information.

 If you are sure it is too rich, lowering the needle in the slide will weaken the mixture, as will screwing out the pilot air screw. Smaller main jet and a  throttle valve with a larger cutaway come next, so worth checking your carb set up against published data as a first step.

 Swarfy.

Thank you Swarfy, I’ll give that a quick check. The only reason I’m really mentioning the throttle cable is because it looks a bit ropey where it connects to the carb. Just thought whilst I’m investigating things it won’t do any harm to change.

[MickFarmer64]

Thanks guys got the advise. As a quick update..
After cleaning the petrol tank out it appears I’d trapped the choke cable with the tank so I think the lever wasn’t fully taking the choke off.
One of the spark plug caps was a pretty loose fit.
I’ve checked and altered the plug gaps
There was a small amount of debris on one of the petrol taps.
Seems to be running better, I’ll see how it goes.

Suppose that’s always the way when it’s a new bike until you find your way around and find it’s little ways.