Quote:
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