Hi..this is my first post on this forum; hopefully the link below shows my bike
I'm currently working through a CB750F from 1980 that I recently imported into Australia from New York. It's a one owner bike with what, I believe to be, a genuine 11,000 miles. The bike has sat (indoors) for 10-15 years, so needs a fair amount of attention.
The bike starts easily with but runs quite rough. I'm now working my way through, timing, carbs, electrics etc.
However, my question is on valve clearances.
I know all about the factory specs, and how the general opinion is that .004"-.006" is now the preferred clearance in order to prolong valve life.
I've just measured my clearances, with the results shown below. Question:
On the face of it, I should be re-shimming any of the valves where the clearance is .003" or below? (i.e. it's only going to get worse from that point forward).......would you agree? or given I ride very conservatively these days, should it give it another 2-3,000 miles and recheck the clearances again?
I'm currently working through a CB750F from 1980 that I recently imported into Australia from New York. It's a one owner bike with what, I believe to be, a genuine 11,000 miles. The bike has sat (indoors) for 10-15 years, so needs a fair amount of attention.
The bike starts easily with but runs quite rough. I'm now working my way through, timing, carbs, electrics etc.
However, my question is on valve clearances.
I know all about the factory specs, and how the general opinion is that .004"-.006" is now the preferred clearance in order to prolong valve life.
I've just measured my clearances, with the results shown below. Question:
On the face of it, I should be re-shimming any of the valves where the clearance is .003" or below? (i.e. it's only going to get worse from that point forward).......would you agree? or given I ride very conservatively these days, should it give it another 2-3,000 miles and recheck the clearances again?