installing a new inboard

[Rene]

Pete7,

Hi Pete

Thanks for the Reply and information on the boat.

Are you the Pete, I bought the boat from ?? a few years back.

Osprey Viper 5.95 Callsign 'XRAI'

The boat is great and the handling i near to perfect...... If thats posible)

Only problem --> the boat is getting smaller I mean I'm getting used to it, and when we put 7 divers in it, there is not much room left.

Regarding the engine. The yamaha if still going strong. When i bought the boat, is was in perfect condition. Later on i got a fuel problem which i could not solve myself. So I got a yamaha dealer to look at it, and since I'm having problem starting the engine.
I have talked to the people down there and they claims that they can't do anything about it.

So every time I'm starting the engine, and the engine is cold, I have to use a can of "Diesel Start" I hope you know what that is

That's the only reason, I looking at orther engines.

But I might just get a bigger boat while I'm at it.

When you have tried a rib, nothing else matters

Rene

[Keith Hart]

Quote Rene "When you have tried a rib, nothing else matters "

How true. Why the heck would any one buy an ordinary boat???

Regards

Keith (talking to the converted) Hart

[Pete7]

Hi Rene, yes I am the same Pete. The Yam is 1989 vintage so its doing well, but wouldn't expect anything else from a Yahama, You certainly have to pay enough for them to start with!

I suspect that it needs a compression test to check to see if the cylinders are worn, a dealer should be able to do this, last check was in 1997 and they ranged from 145 to 152 psi for each cylinder. Using easy start or something similar is asking for trouble and it has no lubrication and causes very quick wear in the bores. This means the engine will become even more difficult to start without it, and becomes "hooked" on it.

However do check the basics first. Is the fuel shut off lever on top of the fuel tank open ? the handle is on the wrong way round so it would fit inside the console, so be careful when checking. Is the fuel tank clean, the inspection hatch can be unbolted to check. Has the fuel filter been replaced, its a diesel filter but works with petrol. Are the spark plugs in good condition. A two stroke will destroy plugs so they need changing every year regardless of what Yamaha says. There is another fuel filter a small white one under the engine cover to check as well. Finally the carb jets, main and pilot may need cleaning with compressed air, especially if the engine hasnt been run for a while as the petrol turns to varnish. whilst your there are the floats okay and set corrrectly. The fuel pump was changed prior to a cross channel holiday with Alan Priddy and seven other ribsters in 95, there are rubber diaphrams inside which can perish over time. I wish the Yam 115 4 stroke had been available 5 years go, I would certianly fitted one. Regards Pete

[Rene]

Pete,

I going to get the compression test, to see if it will solve the problem. I will stop using the easy start, as that will not solve the original problem.
I'm going to test the other things you suggested.

When I collected the boat from you there was absolutly no problems, it started very easy (I would really like it to do that again).

As for the console, do you know if it's posible to change it to something like the offshore console.

I have built a new console to put one the right side of the one built onto the boat. I needed the space to put my new vhf, radar and color fishfinder in. But it's not the same as a prof. one.

As for the GPS (Lowrance) that you put in the boat, do you know which Datum system it's using (WGS80, EDO50, OR.....)
I´can't seem to find the wrecks...... Maybe it's just me (I don't think so)

Rene

[Pete7]

Hi Rene, I think you will have problems moving the console because the fuel tank goes down below the deck, and I know Osprey relly glass them in well. It would be an awful job to try and take it out. No sure it the same tank would fit across the boat so that might need replacing as well.
Suggest you leave the console as it is. Instead why not make a box to go on top of the existing console to house the new electronics. It could go further forward as there is plenty of room in front.
I think the GPS standard is in the manual but it is an early Lowrance bought in 1992, you could try sending them an e mail. Probably best to go straight to the USA for that as Simpson Lowrance the UK importers are in trouble here in this country.

Have a look at this link for a new engine: http://www.ribsforsale.com/
They have a 100 Yam 4 stroke for £5700 which seems good although you might prefer the 115 for seven divers. They also have a big Prosport 8 - 9 m rib which has been for sale for a long time, offer a low price and see what happens.

Also Fairweather Marine have a site and offer good prices and come strongly recommended by everone. http://sites.yell.com/passport/goto/...rine/home.html

Regards Pete

[Pytheas]

Hi Rene

Yes, all Scorpion ribs perform superbly and this one is also very good with twin four stroke 115hp Yamaha.
We are talking about Greek made Scorpions though, same brand made under licence here.I am sure british Scorps can only be even better(but here you get a slightly different layout, med style with lots of extras)

I am not sure about trailing for I have never trailed a boat in my life nor I intend to.

Why take it by the road when you can just rib it there!(we are living in Greece but Danemark is full of islands too)