Advice on Yamaha 2 stroke, 1999 vintage.

psycho · 13 January 2016, 19:28

I need some help from people in know please...?

I am interested in a Yamaha 2 stroke 25hp, and have one in my sights.The seller says it is a 1999 model. The thing that puzzles me, is after doing a lot of research on tinterweb, I still cant find the answer.

Most of the engines from that period, have the F/R lever in front of the cowl, just behind the tiller. The one that I have seen, has it on the starboard side of the cowl. I cannot for the life of me, find any info or manual, for a 2 stroke 20hp, with the F/R lever on the side.

I have asked the seller for the serial No, but until I get that info, I cannot figure out if the year is correct. The only info that I can find, is that the commercial 2 strokes, are slightly different. Does anyone know if this is correct, or am I barking up the wrong tree??

Poly · 13 January 2016, 19:35

I have a 20hp, 2005 model (last of the two strokes) which is on remotes with the throttle and gear changers on the stbd side. I believe the remote / tiller difference is irrelevant.

Edit: just checked the service manual on tiller the gear change is on a mini remote next to the the tiller.

psycho · 13 January 2016, 19:45

I hear what you say about the relevance, but it just seems weird, that no info or manual is available. Which in turn, casts a doubt in my mind.

Does anyone have any info on the commercial range please, as I am led to believe that these are much more sought after and are meant to be nearly bullet proof if looked after.

Confused now.....!

Poly · 13 January 2016, 19:47

Quote:

Originally Posted by psycho

I hear what you say about the relevance, but it just seems weird, that no info or manual is available. Which in turn, casts a doubt in my mind.

Does anyone have any info on the commercial range please, as I am led to believe that these are much more sought after and are meant to be nearly bullet proof if looked after.

Confused now.....!

I'd get the serial number and model to check the age. I don't think there is a different commercial spec (other than the 2str only being available commercially now).

psycho · 13 January 2016, 19:59

I know that you should not believe everything that you read, but this is where that I read it.............

http://www.rib.net/forum/f10/yamaha-...sib-68531.html

dave3235 · 13 January 2016, 21:24

Hi all

Could be an optional extra.Mariner do kits not sure about Yam though.

Poly · 13 January 2016, 23:09

If you can get a picture of the model number this should confirm it's age etc: http://yamahaoutboards.com//sites/de...code_chart.gif

beerbelly · 14 January 2016, 13:49

think the commercial spec has single carb and is pre mix instead of autolube

Landlockedpirate · 14 January 2016, 18:57

They also made an 'Origin' model, 25hp, gear change on the side and twin cylinder. I cant remember the exact dates but they were still selling them in the early 2000's

psycho · 15 January 2016, 16:30

Right then, I have the serial number to hand, and it translates to.......

25 hp two stroke, 2 cylinder, Vmax series, manual tilt, short shaft, 1999.

Has any one , any knowledge or experience of these engines please?

Edit. It is not auto lube.