60 merc vs 40 tohatsu

[CajunChristian]

Originally Posted by keakar

restrictor plate ???

I thought that was just for nascar?

do all 4 stroke motors have restrictor plates?

does my 2002 Suzuki df40 have one?

The tohatsu is a 2 stroke direct injected motor, the 40hp has a restrictor plate on the intake. Just like the 4 cylinder 4 stroke Merc and the 50hp 4 cylinder, 4 stroke merc has a restrictor plate in the intake. Intake restrictors is an old trick used by manufacturers for 25 years Some even use exhaust restrictor plates. Just a small steel plate with a hole drilled in the center, the plate was inserted into the exhaust pipe on some outboards.
D