FZRSupport: the FZROnline Archive

Do the clearances generally change in the break in period after a rebuild?
Ive replaced all the intake valves and ground lapped the lot on a 1K motor. Just wondering if they tend to tighten up a bit in the break in period? In your experience.
Cheers.
P.S I was a bit surprised how buggered the intake valves were after only 40,000 Ks. Good thing they were quite cheap to buy I thought.

It's worth checking them.

IIRC there was a check (and adjust if necessary) at the break-in service (600 miles in the states), then you were good to go for 8000Miles (12,000)

Il answer that question myself now.
After two hours running since rebuild. My clearances have all tightened anywhere between 0.02-0.05mm but most of them 0.03mm.