year

[carlos silva]

hi, i have a yamaha 4hp ac 6eo s 117368 can you tell me what year is this motor thankyou carlos.

[boscoe99]

circa 1990 it appears.

[carlos silva]

swop powerhead

i have a yamaha ac 4hp 6eo s 117368 [1990] powerhead casing number y-2 6eo-01 can i straight swop and fit a powerhead from a yamaha ac 4hp 6eo s 001709 [1981] casing number y-1 6eo-00 [no drain] thankyou carlos.