New Member

[glenrj]

Hello to all.
I am in the process of changing my 75hp 2stroke Mariner to a Suzuki 80 4stroke. This will be my 1st 4stroke in 50 years of fishing/boating.
I have had Yamaha, Johnson, Mercury, Mariner, Evinrude motors so this will be an experience that will see me out till I fall off the perch
Cheers, Glen.

[Moonlighter]

Hi Glen

Welcome to the forum!

You are in for a treat with your new Suzuki, you will not believe how quiet, smooth and fuel efficient they are! Be careful not to leave it running when you pull the boat out of the water!!

You are probably aware that the DF80A is the middle model in the DF70/80/90 family, that all share the same block and engine weight. Did you consider getting the 90 given its the same weight and size as the 80?

One thing that is a bit different to the 2 strokes is propping. 4 strokes can be a bit more difficult to prop to get the optimum performance, but a good dealer will be all over this and will sort you out.

Many of us have found that the Suzuki OEM props work very well with these engines, better in many cases than after-market ones. If you can afford it and its suitable for your operating conditions, the stainless steel props are much better than the alloy props too.

Dont hesitate to come back and ask questions, most of us here are just enthusiasts that have been around Suzuki outboard engines for quite some time and have learnt as we go, others are experienced mechanics.

Cheers from downunder!

Grant

[glenrj]

New member

Hi Grant. I didnt know about the weight similarity.
After I was given the OK by the wife I acted very quickly!
I was given a generous trade in for the 1998 75 Mariner so I opted for the 80.
I dont fish too far out in Pt Phillip bay & I didnt want anything bigger to rattle the life of my ancient Savage Lancer.
I will have a chat to the dealer re the prop selection.
Thanks for the advice. I should have it on the water by next week.
I will give you a update.
Cheers, Glen.

[Moonlighter]

Glen, good to have more Aussies on the forum! Keep encouraging more to join, we will take over eventually!

I agree, its good to act quickly when the Minister for War and Finance issues an approval!

[glenrj]

New member

My wife is quite taken by her new title bestowed by you!
She has deleted ''The Cook'' from her Will & now answers to your branding.
Cheers, Glen.

[Moonlighter]

Commander-in-Chief of the Opposition Forces

Admiral of the Western Fleet

SWMBO (She who must be obeyed)

And the list goes on.....! ��

[Solarman]

Fantastic Grant!
This must be the voice of experience! Haha!
Ralph

[glenrj]

New motor

Grant, finally got a chance to put the new 80 in the water.
The M4W&F came also.
Launched the boat & turned the key. Bloody hell! How quiet is this.
Water out of the tell-tale so it must be idling.
Ran at idle speed for 15 minutes then 2700 for 30 minutes.
2nd prop fitted was 3 x 13.75 x 19. Alloy.
Petrol used was minimal compared to the old 75 2stroke.
Hopefully tomorrow I can get out again for some more variation in the revs.
Cheers, Glen.

[Moonlighter]

Well done on the initial run Glen. Keep following the run in instructions and you will be good to go.

Once you can give her full throttle, make sure that at WOT and trimmed out, she revs out to somewhere close to 6000rpm's. That will give you a good idea if you have the right prop or not (see the sticky on the forum re selecting the right prop).

We mostly find that they "loosen up" noticeably after the first 100 hrs or so. Fuel economy improves then too.

If you get the option, the Suzuki stainless props are a good bit better performers than the alloy ones.

See if the Chancellor of the Exchequer will let you buy one!

[glenrj]

new motor

Looks like an indoors day with the Easterly winds for a while.
Might count the Shekals with the Treasurer to see if the amount will cover a S.S.
Only disappointment with the motor is not receiving a new fuel tank.
It is running off a Yamaha.
How is that for multiculturism!!
Cheers, Glen.