SR250 pre 1981
Don't have a clue, sorry mate :/
120 Compression.
what should the compression be on a yamaha big wheel 80
Yamaha banshee stock , how's the compression should be??
A yamaha blaster should have at least 120psi 150 is recommended
120 psi minimum
6.8:1
87 - 04 compression standard 121 psi minimum 114 psi max 128 psi
480 psi minimum
i did the math and the exct commpression is 183.75 psi
That depends on what brand and what model it is and also what kind of shape its in. The average price in 1982 was much lower for example. Comparable bike. 2007 Yamaha YZ2501-Cylinder2-Stroke249ccS.R.P $5,110 1982 Yamaha SR250 Exciter1-Cylinder4-Stroke250ccS.R.P $825.00 Source = http://www.kbb.com/kbb/Motorcycles/Retail.aspx Hope This Helps.