Ask the Editors: Zook With a Case of the Ping Pings
Dear ATVC: I have a 1987 Suzuki Quadracer 250 that pings every time I crack the throttle. It has a fresh top end but is still stock spec. The only other mods are a pipe and vented airbox lid. Any ideas? Pinging is actually the result of pre-ignition of the fuel in your engine’s top […] More »
By: Jason Giacchino | April 20, 2012