KF3 with rotax 670 on floats

[KFfan 151]

Looks like a great performer, if you can stand the weight gain...

 

https://www.youtube.com/watch?v=ZcT5CwstASg

 

Lou

[Dusty 126]

Maybe it's the exhaust but the 670 has a distinctive sound.

It would be harder(without a clutch) to do a runup on floats,but from shutdown to full power with a two stroke is asking for a cold seizure and once agin the engine (especially a 670)will get blamed.

But still impressive,thanks for posting.

[KFfan 151]

Maybe it's the exhaust but the 670 has a distinctive sound.

It would be harder(without a clutch) to do a runup on floats,but from shutdown to full power with a two stroke is asking for a cold seizure and once agin the engine (especially a 670)will get blamed.

But still impressive,thanks for posting.

Harder to do a runup?  Just hold the brakes...

Edited 21 Sep 2015 by KFfan

[TJay 1041]

Wonder what the weight difference really is. I have a 582 for mine with the E gear box, wonder if the 670 with a C box would be about the same?

[C5Engineer 1170]

Since he was in the middle of the lake I think it's safe to assume he had just landed. Sure the water temp was already up. I think the 670 with the proper set up will make a great engine. It was the workhorse of Ski Doo for many many years.

[Dusty 126]

The difference in weight 582vs670 is regularly quoted as 10pounds,the crank is heavier and the barrels are only slightly bigger.

The correct exhaust is a Lot bigger,but awesome power to weight!

Even a warm engine will nip up under the right conditions,20 seconds at a high power setting is cheap insurance