It is currently November 14th, 2024, 2:41 am

Updates on T750 Yamaha/Mariner 15 inch

View active topics

All times are UTC - 5 hours [ DST ]


Post new topic Reply to topic  [ 1 post ] 
Author Message
 PostPosted: October 27th, 2024, 12:00 pm   
Team Member
User avatar

Joined: April 3rd, 2012, 1:52 pm
Posts: 3153
The search for information and locating original parts has been very frustrating. It seems simple just find a 48, 55 or 60 hp twin cylinder and you have what you need. That is true but to build the best motor you just can’t use any motor. The problem is Yamaha built several different models....3 different cubic inch displacements from 45 to 49, 3 different exhaust systems, and 3 different gearcase ratios.
They did limited production runs of 2 models...the 60D which was raced prior to the 70CES...and the 6f0 which is the 49 cubic inch version.
The strange part is the cylinder sleeve porting is similar on all the motors, as is the crank.

Our T750 rules allow two cylinder up to 49 cubic inch models to race. That allows the 6F0 Yamaha blocks and the Suzuki motors to race.

The Suzuki model is very rare and I have only seen one short shaft with power trim in Ontario.
https://alberton.southafricanlisted.com ... 68463.html

I started this thread years ago and got some people interested and one person building a Mod version.
Here is where he started posting about his project.
https://www.boatracingfacts.com/forums/ ... maha/page6

Now years later here is the finished project
https://www.facebook.com/reel/1140064363912807

Now if your wondering why would you want to race this Yamaha against the dominant SST 45 blocks in the class?
Reason...it is impressive!
https://www.boatracingfacts.com/forums/ ... ecord-1986


Top
 Profile Send private message  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 17 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  


Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Style originally created by Volize © 2003 • Redesigned SkyLine by MartectX © 2008 - 2010