1988 Yamha 25hp - Rev limiter? (Rodbolt?)

[Snowdrggn]

Would anyone happen to know if this engine is equipped with a rev limiter? If so, at what rpm does it activate? I would like to limit the top speed of a small, light boat by prop selection, but not over rev the engine.

Any input would be appreciated.
Thank you in advance,
Snow.

 

[Snowdrggn]

Re: 1988 Yamha 25hp - Rev limiter? (Rodbolt?)

Let me clarify, I would have to under prop the motor quite a bit to keep the top speed down to a safe level, but do not want the motor to get damaged by an inexperienced operator. Installing a tach, or enforcing heeding it is not an option, as it is a tiller motor on an inflatable.
Thank you for any input,
Snow.

 

[bigbrownbuku]

Re: 1988 Yamha 25hp - Rev limiter? (Rodbolt?)

i had to speed limit a fleet of v6's. i custom made throttle stops that i mounted on the engine to limit throttle travel. dont rely on the limiter.

 

[deejaycee_2000]

Re: 1988 Yamha 25hp - Rev limiter? (Rodbolt?)

yes it has, probably around 6000 rpm, you can adjust your throttle stop to make it less .....

 

[rodbolt]

Re: 1988 Yamha 25hp - Rev limiter? (Rodbolt?)

actually,I dont know.
but if you willcall the yamaha consumer help line ,have the engine model and seriel number, I am sure they can get an answer to your question. I see maybe 3 25 HP motors a year.some years less.
most every thing I see is V6 and twins or triples. little motors always make me read the F manual .

 

[Snowdrggn]

Re: 1988 Yamha 25hp - Rev limiter? (Rodbolt?)

Thanks, I'll give that a try. I can't seem to get a straight answer from the dealer or the service manual.....

Cheers,
Snow.