what is Cylinder compression ratio / cranking pressure on 2.5 rocket?

[imcool]

I am not talking about compression ratio posted on manual/internet. I want to put a compression ratio guage in place of spark plug and check the compression pressure/cranking pressure of cylinder on the guage.

Does someone know what should be the compression pressure on these rockets?

I have checked all factory manual PDF etc. available and I have check triumph technical website too but there is no information.

I found this thread but its for 2.3 rockets and I think its with Turbo installed,

Compression Check

sounds like a bad piston ring. Any combustion pressure is not supposed to go into the crankcase but its supposed to go out the exhaust valve.

www.r3owners.net

Hopefully someone can chime in.

Thankyou

 

[Kevin frazier]

With the compression release on the new bikes im curious to know what you come up with.

 

[1olbull]

Compression release? Wow!
I've not seen one since my 1956 AJS 600cc Typhoon . . . And it WAS necessary in order to kick start! I still have a couple shin scars.