Replacement oil injection hose

[lime4x4]

Working on 1987 yamaha 150 2 stroke engines.Had to rebuild my port engine over the winter. While reinstalling i took notice the oil injection lines are starting to get hard ans slightly brittle. Most of the lines are no longer available. Any idea what i can use to replace them?

 

[grady_22]

Are you referring to the lines running from the external reservoir or the lines on the engine? I just repowered my 88 226 Seafarer with a 2001 Evinrude DI 250. I essentially went over everything before installing the outboard on my boat. One of the things I ended up doing was checking and replacing any worm-gear clamps with Oetiker (ear-style) clamps on fuel and oil lines. Thankfully, all of my preformed lines under the cowling were in nice shape.

I did end up replacing the feed and return lines from the reservoir as they were brittle from sun exposure over the years. I used Shields low permeation marine fuel hose type A-1, just make sure you are using the manufacturer specified ID for the hose. In my case it was 1/4 inch ID for the feed, 5/16 in ID for the return. If you need to replace the lines that are under the cowling with preformed bends, I suppose depending on how tight the bend needs to be, you could replace it with a piece of new hose, however you need to be careful of kinking the lines at the bend. Otherwise, I suppose some used parts from ebay might be an option. Regardless, I would definitely recommend getting the Oetiker style clamps for any fuel/oil connections however if you are in there. Here is a link for a good supplier for SS Oetiker clamps that I used.

http://www.ebay.com/itm/331038223477?_t ... EBIDX%3AIT

 

[seasick]

If you are referring to the lines from the oil pump to the carbs, I found them on several web sites, just Google the part numbers ( Boats.net has the part numbers. That said, the oil is not under a lot of pressure and I would think that any oil rated hose of the correct size would do and be a lot less expensive than the yami part. Get the correct clamps, regulat tie wraps don't work well, especially for small diameter hoses.

 

[lime4x4]

It's the hoses from the pump to the carbs. I tried googling the part numbers and i found all but 3 of the hoses. I was thinking of using the yellow hose that weed wackers use for the fuel pickup

 

[Tucker]

Lime you're right-on with weedwacker hose. Some Yam jetskis had problems with the oil hose failing and that's what guys were using instead of OEM. I had carbed 200HP Yams with the same setup. I think those little clamps are fine with the soft pliable hose you're using.