Ok guys I have a 1991 yamaha 225 pro v. It has low compression on one cylinder and since I am going to have it apart, should I remove the oil injection and go to premix? Also, does anyone know where I could find a coned lower unit? Thanks in advance. And can someone tell me the max rpms of this motor.
Why do you want a coned LU? Yamaha may have the best oil inj out there. I would not remove it.
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
Do not, repeat, do not, remove the oil injection system.
The last time there was a Yamaha oil injection system failure was in... Wait, can't remember ever hearing of one failing.
https://bobsmachine.com/product-cate...tes-skegs-etc/
Are you going to just remove the intake system and cylinder head to remove just the one piston and rod or ????
Unless you are running over 80+ mph, You dont need a coned LU... Infact you will loose bow lift and speed on a slower set up.
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
Red line RPM should be 5500.
I concur 100%, I have a 30 year old ProV and never an issue with the oil injection system.Originally Posted by 21XDC
Ok thank you for the replies. I was just wondering about the oil injection, I'm used to the old 2.5 merc
Yam911, I am picking the motor up tomorrow and dont know how much will need to be done
Reply With Quote
.jpg)