Jet ski engines

[Guest dad]

Wet weather day and the mind has been wandering and was looking at alternative power plants and came across this,

 

Yamaha 1200 65U 135 HP Rebuilt Engine

 

Price:

 

$999.00 (excluding tax)

 

SKU:

 

010-2026-01

 

Weight:

 

90.00 LBS

 

MMMM, the mind starts to boggle.

 

 

[Russ]

The yanks are right into these yamaha engines, out of skidoo's etc. Reports are good as they are bolting them into gyros.

 

Will track the site link, and get it here..............

 

 

[fly_tornado]

I thought the snowmobile engines where a bit different to the PWC. I thought they had much bigger blocks due to the superchargers and salt water.

 

 

[Guest dad]

From what I understand there is a heat exchanger so no salt water is drawn into the cooling system and not all watercraft engines were forced induction.

 

The power to weight ratio is attractive with the 2 strokers being lightest.

 

The constant revs of the watercraft is similar to aircraft usage.

 

Peter

 

 

[fly_tornado]

I looked @ PWC engines in my Tornados for a bit and realised that no one was using them and didn't want to be the first. Plus the lure of a big BMW twin in a plane was strong...

 

 

[fly_tornado]

That's what I have been told too. there are a lot of 503 parts in the snowmobile section of ebay.

 

 

[fly_tornado]

that more sales speil than anything, what I find interesting about rotax is that they always start of producing engines for bike companies and once the production run is established the manufacturer drops Rotax. both BMW and Aprilia have done that. Buell used Rotax until there demise. I think KTM also use Rotax engines. I think one day Rotax is going to run out of companies.

 

 

[dazza 38]

that more sales speil than anything, what I find interesting about rotax is that they always start of producing engines for bike companies and once the production run is established the manufacturer drops Rotax. both BMW and Aprilia have done that. Buell used Rotax until there demise. I think KTM also use Rotax engines. I think one day Rotax is going to run out of companies.

HI mate, Rotax made a 504 engine in 1983 for the KTM and 600 engine in 1984.They also make the v twin 950/990 engine LC8 motor.My KTM 640 LC4 engine is made by KTM. ATK motor cycles that where made in the USA used Rotax engines.

Back to thread-Yamaha make a 1800cc inline 4 cylinder Jetski Motor normaly aspirated.It produces 180Hp .That would be nice.

 

 

[Guest dad]

180 hp, mmmm, I think that would be overkill for the sonex.

 

interesting though.

 

This needs some more investigation.

 

 

[Russ]

http://www.rotaryforum.com/forum/showthread.php?t=27116

[dazza 38]

My mate has a PWC with a 230 HP supercharged Rotax motor in it, so he tells me!David

That is true David.Ski- doo.The cost big dollars if something goes wrong.The main mod that i know of. Is on the supercharger, there is a mod to replace a ceramic seal to a stainless steel one.I cant remember but the ceramic seal had to be replaces every hundred hours or so. I have never owned one but i did some research on them because bloke i know wanted to buy one.

 

 

[Guest ozzie]

Honda have a PWC with a 4 cyl turbo around 1600cc. goes like a scalded cat. Good looking engine that screamed out to have an aircraft put behind it.