"I have a 1999 DT 225 EFI and
"I have a 1999 DT 225 EFI and all of a sudden it will not rev past 1800 RPM's. It has new plugs (May), New Impellor and thermastat(may).
I took it to a Suzuki dealer and they said it is running hot so they flushed the engine with "On/Off" and said it was fine...