Notices
The Boating Forum

Can anyone ID this engine?

Old 11-28-2019, 08:10 AM
  #1  
Member
Thread Starter
 
Join Date: Aug 2018
Location: Weeki Wachee, FL
Posts: 97
Likes: 0
Received 5 Likes on 5 Posts
Default Can anyone ID this engine?


Old 11-28-2019, 08:12 AM
  #2  
Senior Member
 
Join Date: Dec 2014
Location: Land down under
Posts: 11,644
Received 2,165 Likes on 1,276 Posts
Default

It is a Yamaha LZ150TXRB.
Old 11-28-2019, 08:13 AM
  #3  
Admirals Club Admiral's Club Member
 
Join Date: Dec 2005
Location: Palm City, FL
Posts: 654
Likes: 0
Received 151 Likes on 83 Posts
Default

2003 Yamaha 150 hp HPDI

Old 11-28-2019, 08:15 AM
  #4  
Senior Member
 
Join Date: Dec 2014
Location: Land down under
Posts: 11,644
Received 2,165 Likes on 1,276 Posts
Default

I stand corrected.
Old 11-28-2019, 08:17 AM
  #5  
Senior MemberCaptains Club Member
 
Join Date: May 2005
Location: Seattle, WA
Posts: 8,748
Received 761 Likes on 452 Posts
Default

Left hand (counter) rotation, 25” (Extra Long) shaft
Old 11-28-2019, 08:22 AM
  #6  
Admirals Club Admiral's Club Member
 
Join Date: Dec 2005
Location: Palm City, FL
Posts: 654
Likes: 0
Received 151 Likes on 83 Posts
Default



The LZ indicates left hand rotation.

X is 25” shaft.

B is the year 2003
Likes:
Old 11-28-2019, 08:24 AM
  #7  
Member
Thread Starter
 
Join Date: Aug 2018
Location: Weeki Wachee, FL
Posts: 97
Likes: 0
Received 5 Likes on 5 Posts
Default

Thanks all, that's what I was looking for. I take it the HDPI 150HP was a decent engine? How does the mileage compare to a newer four stroke?
Old 11-28-2019, 09:44 AM
  #8  
Senior Member
 
Join Date: Dec 2014
Location: Land down under
Posts: 11,644
Received 2,165 Likes on 1,276 Posts
Default

Mileage will depend upon a number of variables. What type of bote?

That was a particularly good Yamaha motor. Very fuel efficient for its time. Not quite as good as a four stroke Yamaha.


Old 11-28-2019, 09:47 AM
  #9  
Senior Member
 
Join Date: Dec 2014
Location: Land down under
Posts: 11,644
Received 2,165 Likes on 1,276 Posts
Default


Old 11-28-2019, 11:18 AM
  #10  
Member
Thread Starter
 
Join Date: Aug 2018
Location: Weeki Wachee, FL
Posts: 97
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by alloyboy View Post
Mileage will depend upon a number of variables. What type of bote?

That was a particularly good Yamaha motor. Very fuel efficient for its time. Not quite as good as a four stroke Yamaha.


It's a 2003 CC Pro-Line with twin 150's
Old 11-28-2019, 01:22 PM
  #11  
Senior Member
 
Join Date: Dec 2014
Location: Land down under
Posts: 11,644
Received 2,165 Likes on 1,276 Posts
Default

Not a Pro-Line but it might be close.

Likes:
Old 11-29-2019, 04:43 AM
  #12  
Member
Thread Starter
 
Join Date: Aug 2018
Location: Weeki Wachee, FL
Posts: 97
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by alloyboy View Post
Not a Pro-Line but it might be close.
Awesome thanks! How would that compare to 150 four strokes?
Old 11-29-2019, 04:58 AM
  #13  
Senior MemberCaptains Club Member
 
Join Date: Oct 2003
Posts: 7,630
Received 569 Likes on 368 Posts
Default

Originally Posted by Chevjerico View Post
Awesome thanks! How would that compare to 150 four strokes?
How long is the boat? A pair of 150 HPDIs on a 2470 Pursuit WA will get 2.4 MPG @ 30 MPH. The F150 isn't any better at cruise but slightly better at idle speed. However, the trade off is the F150 is weaker on low and mid-range torque which matters when you are trying to hold the boat on a low speed plane in rough seas.
Likes:
Old 11-29-2019, 05:20 AM
  #14  
Member
Thread Starter
 
Join Date: Aug 2018
Location: Weeki Wachee, FL
Posts: 97
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by Whaler27 View Post
How long is the boat? A pair of 150 HPDIs on a 2470 Pursuit WA will get 2.4 MPG @ 30 MPH. The F150 isn't any better at cruise but slightly better at idle speed. However, the trade off is the F150 is weaker on low and mid-range torque which matters when you are trying to hold the boat on a low speed plane in rough seas.

More great info. Thanks! It's a 25' Pro-Line sport. So pretty close to your example. I think I'd be okay if I find an older boat with HDPI
Old 11-29-2019, 06:10 AM
  #15  
Senior MemberCaptains Club Member
 
Join Date: Oct 2003
Posts: 7,630
Received 569 Likes on 368 Posts
Default

Originally Posted by Chevjerico View Post
More great info. Thanks! It's a 25' Pro-Line sport. So pretty close to your example. I think I'd be okay if I find an older boat with HDPI
Should have similar performance. HPDIs need clean fuel so one thing you might consider doing upon acquisition is refreshing the fuel filters (boat, engine inlet filter and the medium pressure filter between the VST and the high pressure pump) so you know you are starting out with new. HPDIs and other Yamaha V6 2-stroke sometimes develop an oil leak in the oil level float switch/cap on top of the engine oil reservoir. When inspecting the engine, look for any cracks in the cap that run in the direction of and along side the wires that come out of the cap. If cracked, it will probably leak at some point. Not a big deal if it leaks, just makes a little mess in the engine well.
Old 11-30-2019, 07:29 AM
  #16  
Member
Thread Starter
 
Join Date: Aug 2018
Location: Weeki Wachee, FL
Posts: 97
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by Whaler27 View Post
Should have similar performance. HPDIs need clean fuel so one thing you might consider doing upon acquisition is refreshing the fuel filters (boat, engine inlet filter and the medium pressure filter between the VST and the high pressure pump) so you know you are starting out with new. HPDIs and other Yamaha V6 2-stroke sometimes develop an oil leak in the oil level float switch/cap on top of the engine oil reservoir. When inspecting the engine, look for any cracks in the cap that run in the direction of and along side the wires that come out of the cap. If cracked, it will probably leak at some point. Not a big deal if it leaks, just makes a little mess in the engine well.
Thanks, I'll refer back to this thread if I get HDPI's. Just looking at the moment trying to gain some knowledge. We have a house being built that should be done by January. Then I will be seriously looking.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.