the 1977 srx was built for oval racing. there was an optinal gyt kit for them that included circle m fuel injectors. hp was in the 98-100 hp range at 9800 rpm. It had a 2 gallon gas tank and weighed 338 lbs.It was and as far as i know still is banned from racing in isr sanctioned events. it was a political thing. no other sled could beat it when properly tuned and with a good driver on it. Truely one of the fastest production sleds of its time. still deadly as a drag sled. if they allow you to race it! here is a pic of one
http://www.vintagesleds.com/treasure...7SRX/77srx.htm
AS a sidenote in 1978 yamaha built the SSR. Production numbered around 100 of these rare sleds. It had the same engine as the 77 srx but had independent front suspension,of a style that was not re- introduced until the late 90s
http://www.vintagesleds.com/collecti...amaha/1978.htm
