Originally Posted by
vyt666
guess i'll try to change my plug to an os p3,currently im using a nova medium plug c6tf. about air filter,i always use clean air filters on my engine.last week the engine rips on our local track without flame outs,no idle drops,no lean bogs,tuning errors whatsoever,maybe nova plugs do not lasts like the os plugs.
try the plug first but if the engine was ripping last week and now won't idle and you changed nothing give it a close once over for air leaks etc..these engines rarely need more than a tweak once set up properly so a sudden change is more likely to be something else.Mine was the nipples on the exhaust pressure line cooler had unscrewed..bugger to spot as it was only causing a tiny intermittent air leak.Nothing dramatic just motor not as snappy as it should be..fixed it and return of the rocketship