WOW....
"i just did the math on this the other day. on one of my motors, i have 3 years on it.. 4T oil only, 14 oz each change.
i have over 3000... 1/6 mile laps on this one engine. I lap the valves every 4 races. (about 1000 laps or 6'ish hrs of racing) each race is between 40 and 60 miles. it is use primarily for entrance races. once and a while we run it in the regular program is someone brakes a motor or kart. We are talking about honing the cylinder and putting in new rings this year. OH when we lap the valves we check the torque on the rod bolt... just to be sure.. NO mods to this motor at all..."
advertisement for PREDATOR MOTORS? like the Mc Crary brothers riding Honda Trail 50/70's across the US, 100 miles a day...3000 miles to show Honda's reliability. the brothers weighed ~730#/ EACH