Slow Vegas XT

Randy I have a 1985 Vegas XT with a 2001yamaha 200 HPDI v max  /Bobs nose cone & land & sea jack plate. I have tried chopper props/ Raker props & torque shift props. Nothing seems to get the boat above 65 mph & at that point the boat chine walks very bad because of over trimming. I am very frustrated any help would be much appreciated.

Thanks
Bill

 

Bill, 

Unfortunately, the new Yamaha outboards have the most hideous gearcases for the Vegas. Adding a cone just made it longer and added to the problem (they are also 5+" is diameter, so they blow a big hole in the water). I did a Vegas like yours with the same basic motor a few years ago. With a 27 Pro series Yamaha prop it ran 75ish. With an old '88 excel gearcase it went almost 80. Put the propshaft at 2" below the pad and don't mess with it. Then don't try to drive through the chinewalk. You can't. The faster you go, the more it will walk. There is no cure, but just learn the steering corrections to control the walk. Drive up to the point but not past it and master it at that speed. Then, move to a new speed and master that. It's like riding a bike, once you learn you'll never forget and you won't think about it. It will just happen naturally. Also if you have the Yamaha trim indicator only trim to 4 on the gauge. "5" is for later. 

Randy

 

 

Please submit whatever questions you have to IHRTechTalk@yahoo.com.  All questions and answers selected will be displayed on this page as they come in.  Note: though all boaters are welcome, priority may be given to I.H.R. members.  Randy can not be held responsible for any advice given.  Though his information and expertise is second to none, he has no control over what you do with your boat.  It is up to you to boat safely and act responsibly, and his advice is only to be used as a guidance for your high performance boat/motor of which you are the one responsible for the risks involved.

Thanks,
Mark C.

 

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