Hi iv got a beta rev 3 on a 2003, when I put her under load ie up hill climbs the engine knocks, could this be a fuel grade prob or

timing? I use unleaded but Iv read that Beta's like a higher grade fuel to run better, any experiences on this? Re timing any views on this?

Thanks

Hi iv got a beta rev 3 on a 2003, when I put her under load ie up hill climbs the engine knocks, could this be a fuel grade prob or

timing? I use unleaded but Iv read that Beta's like a higher grade fuel to run better, any experiences on this? Re timing any views on this?

Thanks

Same bike - I cured the problem by using Shell V Power.

Does the bike knock when you let off or back off the throttle or when you twist the throttle on?

BillyT

Edited June 9, 201115 yr by BillyT

my 2003 rev 3 will only run knock free on super unleaded ( doesnt matter what brand) i run PJ1 silver fire at 70.1

Lift the needle a notch. Clean the carbon from the head and piston top. It helps but doesn't eliminate it.

Billy T - The knocks/clanking is when throttle open, I also wondered if the prob was merely the engine was at its max!!!! I will try higher grade fuel at weekend and keep u posted with the results

thanks guys