Yes, as a car gets older its compression ratio will change. This is because the rings within the car will gradually age and rust.
force of compression
Compression.
It all depends on your riding.racers change 25hrs or so.I ride every other week end 3-4 hrs,its giong on 3yrs since last top end.Buy compression tester 170psi needs top end,my compression 220.KTMs piston are forged like wisco,But austria quality.Usually bike has lost power,runs but not as peppy ,depending on compression. tbiker67@yahoo.com
force of compression
An additive change shows horizontal translation.A multiplicative change shows horizontal stretch or compression.
resurfacing the head will not change timing. It will change compression.
No. Only heat, compression, or decompression can change the size of a gas/liquid.
Do a compression test
Shave the head or change pistons. See Miata.net
The most common cause for no compression after a timing belt change is improper timing. Make sure that tdc is set correctly, and is not 180 degrees out of sync.
Compression clothing purports to keep the muscles warm, which prevents muscle strain and fatigue. It also wicks away sweat, which can prevent rashes. It is often worn by athletes.