Bit of advice if you would. The F2 is now very close to completion and engine start day has almost arrived.
The engine has had a freshen up ie. skimmed head and barrels (PO going mad scraping gaskets with a screwdriver), very light hone of bores to deglaze, new piston rings, valve grind-in, new cam chain etc.
Thought I would compression test it before attempting to start now I can spin it over on the starter. Very disappointed with the results as No1 was down at 90psi, but jumps to 155psi with oil in bores. The others are slightly better but still low but also jump up when oiled. Testing was done cold without the carbs fitted, but exhaust on.
Am confident the valve timing and the rocker to valve settings are good, rings were fitted 120 degrees apart.
Is this likely to improve as the new rings bed in, or should I not risk starting it?
Cheers.