These are out of a 02' single spark after 3k miles and the bike has done 36k miles overall.
When I have panniers fitted the box next to the silencer soots up quite quickly and that's how I first noticed it.
Bike runs well and gave me an average of 50mpg on a trip with a pillion last year so there can't be much wrong !
I've changed the plugs, air filter, fitted a spare TPS I had, changed the injectors for a newly cleaned and balanced pair but the right side plug is still showing rich.
So...done a compression test and the results seem inconclusive ( for my limited knowledge anyway ).
LH cylinder shows 150psi with throttle closed and 215psi fully open.
RH cylinder shows 140psi with throttle closed and 205psi fully open.
Add a squirt of oil to the right side and it shows identical readings to the left.
Is that slight drop in pressure on the right pot enough to cause the dark plug, I thought that if they were within 10% of each other that would be considered as reasonably well balanced ?
New rings
Or is there anything I've missed ?
Mike.
When I have panniers fitted the box next to the silencer soots up quite quickly and that's how I first noticed it.
Bike runs well and gave me an average of 50mpg on a trip with a pillion last year so there can't be much wrong !
I've changed the plugs, air filter, fitted a spare TPS I had, changed the injectors for a newly cleaned and balanced pair but the right side plug is still showing rich.
So...done a compression test and the results seem inconclusive ( for my limited knowledge anyway ).
LH cylinder shows 150psi with throttle closed and 215psi fully open.
RH cylinder shows 140psi with throttle closed and 205psi fully open.
Add a squirt of oil to the right side and it shows identical readings to the left.
Is that slight drop in pressure on the right pot enough to cause the dark plug, I thought that if they were within 10% of each other that would be considered as reasonably well balanced ?
New rings
Or is there anything I've missed ?
Mike.