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04-23-2007, 11:13 PM
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Engine Questions - What's my Yamy?
I just bought a new '06 21CC powered by a Yamaha 150TXR old school two-stroke.
1) How much does my engine weigh? 2) What is the size and pitch of my prop? It feels like it's set up for hole shot - I pop up on plane in 2-3 seconds at 3,000 rmp, and can't max out my RPM when I go WOT at about 34mph (GPS). Yamaha has stripped all their specific engine specs from their website, and the owner's manual is as vague as a politician's campaign promises. Thanks! 
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04-24-2007, 07:10 AM
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I googled "yamaha 150TXR and found this web link that shows it at 475 lbs.
http://www.yamaha-motor.com/outboard...models_web.pdf
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04-24-2007, 09:19 AM
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that is not an old school 2 stroke. that is fuel injected and I believe probably one of the hpdi engines. Not sure on the last part but if it is, it is an awsome motor. rpms shoule be around 5500 . I have a 150 yamaha hpdi and turn a 14.25 dia 18 pitch 4 blade stainless.. I can only turn 5250 rpm but my speed is average around 42
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04-24-2007, 09:22 AM
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The two strokes are listed on the bottom of the chart...the 150 TXR is listed as 426 pounds.
__________________
170CC Owner (Name: Effie) Chuck Thanks, Dad, for taking the time to show me how to fish!!
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04-24-2007, 09:32 AM
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opps my bad....read the wrong model number
sorry
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04-24-2007, 10:47 AM
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You're right Cagrove...426. I saw the model # and didn't notice it was for a 4-stroke vs. a 2.
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04-26-2007, 05:32 PM
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Thanks for the engine info, guys.
So it weighs 426 lbs, and the prop is (probably) a 14.25 diameter 18 pitch four blade? I need to buy a second prop, and I needed a starting point. Much obliged!
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