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Old 27 November 2006, 16:10   #1
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Country: Ireland
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Boat name: RIZZO
Make: RIBCRFT
Length: 6m +
Engine: YAMAHA 200HPDI
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Yamaha 200HPDI ??

Just wondering about the yamaha 200hpdi ?? was looking at getting a four stroke for a 6.3m ribcraft but have had some poor expierences with four strokes on dive boats with regard to pick up. it was found that out in abit of a swell where your constantly working the throttle the boats just weren't picking up fast enough. I was told to look at the yamaha 200hpdi apparently has the pick up of a 2 stroke put comes very close to the fuel efficency of a four stroke any views out there ??
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Old 27 November 2006, 16:36   #2
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RichardB as had one for a few years with no probleams (I think)
you might want to pm him
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Old 27 November 2006, 16:54   #3
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Good engines - as are the Evinrudes FICHTs. I love 2 strokes!!!
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Old 27 November 2006, 17:31   #4
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Yep, had ours for about three and a half years. To date, no problems over about 450 hours use, and after talking with the mechanics at dealers I'm not aware of any modifications, which is more than can be said for Optis and Etecs. Ours is worked hard and still achieves 1.1 to 1.2 litres per Nm. Oil consumption is higher than other DI engines though.

One minor fault to watch out for is the lower trim unit pivot bolts working loose and falling off. I now check them every trip and tighten them with a half inch ring spanner.

Pick-up is great, and our boat is a pleasure to drive with this engine.
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Old 28 November 2006, 09:46   #5
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Originally Posted by codprawn View Post
Good engines - as are the Evinrudes FICHTs. I love 2 strokes!!!
How do you know this? Have you had years of experience as Richard and Allan do with these engines - or is this just another case of you not being able to help yourself and feel compelled to respond to each and every post and then finish off with your statutory 3 exclamation marks ...
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Old 28 November 2006, 09:53   #6
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Obviously as compelled as you are to be an obnoxious git with nothing better to do than attack people!!!!!!!!!!!!!!!!!
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Old 28 November 2006, 17:18   #7
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Is there much difference in fuel consumption between these and some of the whizzy technology ones like Optis and Etecs?
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Old 28 November 2006, 17:33   #8
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Is there much difference in fuel consumption between these and some of the whizzy technology ones like Optis and Etecs?
Uh? These? You mean Yammie HPDIs? They use the same "whizzy technology" as the Optri and Etec! It's just implemented in a slightly different way as Orbital Engineering have the patent on the high pressure system that Optis use, so Evinrude and Yamaha have had to re-invent the wheel for their 2-stroke fuel injection system.
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Old 28 November 2006, 19:02   #9
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My Suzuki DT225 efi is one of the older type systems apparently and yet it seems no worse on fuel than the newer 2 strokes and 4 strokes. Maybe it's the twin spark that helps - just like my old Alfa!!!
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Old 28 November 2006, 19:31   #10
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Uh? These? You mean Yammie HPDIs? They use the same "whizzy technology" as the Optri and Etec! It's just implemented in a slightly different way as Orbital Engineering have the patent on the high pressure system that Optis use, so Evinrude and Yamaha have had to re-invent the wheel for their 2-stroke fuel injection system.
Ah I see - sorry I thought for some reason that the Yammerhammer HPDI's were a generation behind Opti/Etec in terms of injection technology and that maybe that was why they don't go wrong. Looks like Mac specify Yamaha for the plastic bathtub boat so I'll hopefully find out about the Y reliability first hand within about 12 months or so
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