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    Yamaha rpms and prop?

    I asked this question in the prop section but only got one responce. I have a 91 Pursuit 2550 w/twin 150 Yamahas running 19 props. I took it out this weekend for the 1st time since buying it and got 48mph@5200rpms. Should I just leave it alone or go with a 17 prop. I had about 100gals of fuel...
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    Yamaha Props and Rpms

    I have a 91 Pursuit 2550 w/twin 150 Yamahas running 19 props. I took it out this weekend for the 1st time since buying it and got 48mph@5200rpms. Should I just leave it alone or go with a 17 prop. I had about 100gals of fuel me, my wife and 2 kids. I ran the boat by myself ad them with them no...
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    Cored hull and wood brand?

    I was trying to find out if my 91 Pursuit has a cored hull and if it does where. Also what brand or company of wood does Pursuit use. Is it Greenwood.
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    Sterss/Spider cracks?

    I own a 91 Pursuit 2550. Today i had to change out a ball valve in the bilge. When I was in there I noticed stress cracks around the thru hull fitting. They extended about 3-4 inches around the fitting, lenght wise front to back. Also when i got under the boat to take out the fitting to reseal...
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    Twin engine setup?

    I have a Pursuit 2550 w/twin 150 Yamahas. How do I know if the engine height is right. Also how do I measure the the toe. Should it be in or out.
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    2-Stroke oil check valve?

    I am going to be posting quite a bit sincce I just got this boat with these engines. Anyways, how are the check valves that are each one of the 2-stroke oil oil lines suppose to work. I took one of them of to and I cant blow in either direction, but I can suck air if I do it by where the oil...
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    Yamaha Part # problem.

    I have twin 93 Yamaha 150's. I am trying to buy the roller that goes on the middle carb that works off the cam accelerator. I have been to 3 dealers and no one can fnd it on the micro fiche. I have been to the yamaha web site and cant find it either. Does anyone know the part # or were it is on...
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    Yamaha trim gauge?

    I have twin 94 150 Yamaha with Yamaha gauges. The only thing that is not working on the gauges is the trim indicator. I read in other posts that it also has to do with the oil pump operation. I am new to Yamaha outboards. I will be ordering a manual to get familliar with these engine but mean...
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    Twin 94 150 Yamahas rpms?

    I have a 91 Pursuit 2550 with twin 94 150 yamahas. At WOT both engines run around 44-4600 rpms@42-43mph(GPS). If I let of the throttle to 3/4 throttle I maintain the same rpms and speed. The props are 19's. Does this sound like a engine or prop problem. I have not done a compression test yet, I...
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    Twin 94 Yamaha 150 Props

    I recentlly purchased a 91 Pursuit 2550 Cuddy and at 3/4 to WOT it stays at 44-4500 rpms@ 42mph. I need to re-prop to be able to reach the 5500rpms that the engine normally turns at WOT. What do you guys recommend. Thanks
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