I made a 120 mile round trip on day one of a flw tournament motor ran great day two we had 5 footers 20 min into taking it as easy as i could the motor shut down and would not run over 1300 RPM in the water it cuts out at 4000 RPM out of water sounds like its hitting the rev limiter. if you mat it either way it will just shut down i changed plugs and am getting spark to all cylinders all filters have been recently changed and took off lower unit to check exhaust tuner and impeller computer is not showing any codes but says 2-3 cyliders are not firing but i see good spark when hooked up to plugs
PLEASE HELP