Thread: ultra 150 oil injection removal
09-01-2009, 07:16 PM #1
- Join Date
- Jul 2009
ultra 150 oil injection removal
putting new motor in an ultra 150. customer wants to remove oil injection. is this possible since the oil pump looks like it lubricates the countershaft bearings. there are oil lines from the pump to the cases in these areas.
09-01-2009, 08:10 PM #2
Very poor idea unless he wants to pay you to pull the motor and change the oil a couple of times a season
You are correct in that the oil pump supplies oil to the front and rear balancers. There are 2 check valves inside the engine cases that pass oil from the balancers to the #1 & #3 cylinder, So to block it those check valves would need to be plugged. The balancers would need to still have oil hence it would need to be changed.
Usually what kills an ultra is cracked oil lines, most commonly #2 since it is the only cylinder that gets all its oil from 1 line. I would put all new tygon oil lines on it and leave the injection pump. Then mabe in a couple of years change them again. Be sure you got the oil lines on the correct outputs since they are different. What killed his original motor?
09-02-2009, 10:28 AM #3
you can also disconect the oil lines going to the carbs and block them off and leave the oil lines to the counter balancers, take a piece of copper or stainless wire and tie the oil pump in a 1/2 to 3/4 open position, and then run premix in the gas for the cylinders. I bought a ski that was set up this way and it ran with no problems.
That being said the oil injection on the ultra is very reliable with the exception of a broken or damaged oil line. I would probably think in the long run if it were not for the oil injection on the skis there would be as many if not more engines bite the dust from improper mixing of the fuel by the owner than by oil pump failure. The oil injection is also way more convient than mixing. My wife will stop by and fill the skis for me but she never would mix the oil, said she didn't want that responsibility.
10-02-2009, 10:56 PM #4
- Join Date
- Apr 2008
I too agree with changing the lines and making sure they are routed neatly and protected. Just tell the owner to be careful when working around the lines, keep an eye out for oil in the hull (usually there is some sign of a bad line) and inspect them twice a season
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By twinstack1 in forum Kawasaki How To & FAQsReplies: 10Last Post: 10-09-2016, 09:52 PM
By Jeff_5_7 in forum Kawasaki Open DiscussionReplies: 4Last Post: 08-05-2011, 06:58 AM
By w-nut in forum Yamaha PWC Performance (2-stroke)Replies: 10Last Post: 08-26-2007, 11:58 PM
By twinstack1 in forum Kawasaki Tech Tips and InfoReplies: 0Last Post: 06-21-2007, 10:30 AM
By ChewsteR in forum Yamaha How To & FAQsReplies: 0Last Post: 06-17-2007, 10:59 AM