Yamaha 80hp 4st

TimMcC · 03 April 2006, 10:06

Hi All

Any opinions on the above good/bad ect ?.

Thanks

Simon B · 03 April 2006, 12:07

We have the 100, its the next one up think it uses the same block(?) It is a suberb engine, very smooth across rev range, reliable and so far very economic. Usual good standard of engineering from Yam.

A couple of points; the drag link sheared, this propogated from a crack when it was cold formed in production and dont dismantle the fuel pump if you have the spark plugs out! Those M6 nuts arent captive and are stainless (non magnetic) and are devils for plopping into the pots!

Alex-341 · 03 April 2006, 16:47

Yes we have the 80hp yam, very smooth, and yes it is the same block as the 100 with a different manifold and ECU.

ian parkes · 13 April 2006, 23:34

What sort of fuel economy do you get.

Iam thinking about a bigger boat between 50 and 90 hp 4 stroke and the MPG matters a lot to me and wil be a deciding factor in what I end up with .

Roy Smith · 14 April 2006, 11:39

We had a 100hp on a 560 Avon flat out just under a litre a mile
I have had three Yamaha based on my time with the 100 cant say more than that

Yuley · 20 April 2006, 09:22

Have a 5m Ribeye with Yam 80HP 4-stroke.
With 2 adults and 2 children can do 30-40miles cruising or a whole day w/boarding and towing inflatables..never use more than £30 of fuel.