Join Date: Jan 2013
Location: Montevideo, Montevideo, Uruguay
i agree with you about internet, because that i've looking at the haynes manual in Chapter 2 :Engine.
it seems to have a difference in compression ratio in late US models (10,5:1) and uk ones (11:1), so they talk about 70 and 15 HP respectively.
And in chapter 7 ignition:
US: 26 degrees
UK: 24 degrees
Static ignition timing:
US: 4 degrees BTDC (cranckshaft angle), 0.10 mm BTDC piston position
UK: 6 degrees BTDC (cranckshaft angle), 024 mm BTDC piston position
These are the only differences i can find.
As you say, i just need to ride!.
And as i've read, my bike is from january 86, and the gap between US and IK started " somewere between february and july", so maybe i've this 7h working.