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Which is the best 2 stroke Rotax 447, 503 or 582 ????

 
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knowvne(at)aol.com
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PostPosted: Wed Feb 21, 2007 8:53 pm    Post subject: Which is the best 2 stroke Rotax 447, 503 or 582 ???? Reply with quote

I've been told the 503 is the most reliable of the 2 strokes......This
of course is purely second hand info..... I personally would be
interested in the thoughts of others on this as the 503 motor is the
one I've been considering when I finally decide on a airplane.....
thanks

Mark Vaughn

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jetboy



Joined: 22 Jul 2006
Posts: 233

PostPosted: Thu Feb 22, 2007 12:26 am    Post subject: Re: Which is the best 2 stroke Rotax 447, 503 or 582 ???? Reply with quote

503 by far- I have run 2 of them and they are as reliable as 2 strokes can go. The choice depends heavily on application - if you require more power and staying with 2 strokes there is the Siminonni and also a 3 cyl. Hirth to think about but they probably also have the intake valving and water pump/ systems like a 532/582/618. We had a 618 go down the other day with the usual 'cold seize'. I found fuel consumption is the least of your operating problems. Engine consumption is a bigger factor. Theres lots of good free advice on CPS website, and chapters devoted to service/ problem notes for the various models. They have to be used regularly, and cranks or engines changed as a matter of procedure on hours - dont wait for them to warn you - they wont.

Ralph


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knowvne(at)aol.com
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PostPosted: Thu Feb 22, 2007 6:02 am    Post subject: Which is the best 2 stroke Rotax 447, 503 or 582 ???? Reply with quote

Hi Ralph Thanks for the Heads up....

I'm considering a trike only because of its store ability or a KOLB
Firestar for the same reason ...
The 503 will work fine on either...

I'm after a low cost, simple reliable power plant and the 503 seems to
be the ticket..
I do however need to learn more about maintaining the system...

Can you direct me to CPS? Thanks!

I live in New England so it will see seasonal use ..
I understand 2 strokes require moth balling when not used for a period
of time.
It could be up to 4 months between flights during out winter months
...
Maybe a flight or two off our frozen lakes in that time frame Cool

Thanks Again

Mark Vaughn

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