28-03-13, 10:21 AM
The problem you are describing is most likely what is known as pinking or pre ignition.
Occurs when you pull away with to low a throttle. Usual causes are idle set to low, not enough throttle taking off, over advanced ignition, incorrect grade plugs and low octance fuel. Since it happens when cold and two up it appears you are letting the revs drop to low when taking off.
A few things to do/check to stop it happening:
Set the idle speed (when hot) to 1200/1250 rpm
Balance the carburettors
Set the TPS to ensure it reads 5000 rpm on the rev counter after balancing the carburettors and adjusting the idle speed. There is a small range of adjustment in where it will stay at 5000 rpm. set it to the 10000 rpm side of the adjustment. (Your only means of adjusting the ignition timing on the fazer).
Check the plugs are CR8E not the colder CR9E which are recommended for the Southern Europe and warmer climates, 'Colder plugs' will also exacerbate the issue,
I know, I know :wall many will say, but I always use 9 without issues, but then that do not have the issue described in this post
Keep the revs a little higher when taking off.
Occurs when you pull away with to low a throttle. Usual causes are idle set to low, not enough throttle taking off, over advanced ignition, incorrect grade plugs and low octance fuel. Since it happens when cold and two up it appears you are letting the revs drop to low when taking off.
A few things to do/check to stop it happening:
Set the idle speed (when hot) to 1200/1250 rpm
Balance the carburettors
Set the TPS to ensure it reads 5000 rpm on the rev counter after balancing the carburettors and adjusting the idle speed. There is a small range of adjustment in where it will stay at 5000 rpm. set it to the 10000 rpm side of the adjustment. (Your only means of adjusting the ignition timing on the fazer).
Check the plugs are CR8E not the colder CR9E which are recommended for the Southern Europe and warmer climates, 'Colder plugs' will also exacerbate the issue,
I know, I know :wall many will say, but I always use 9 without issues, but then that do not have the issue described in this post
Keep the revs a little higher when taking off.