Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

  • Announcements

    • Rick

      1st Please Post Your Fishing Report - Then Join the NEW - Private Fishing Report Clubs   01/24/2018

      Private Fishing Report Clubs - Click Here - Post Your Fishing Report Before Joining
      1st, be sure you post a fishing report in the forums, then ask to join after you post a fishing report in your area forum. The Private Fishing Report Clubs are where folks can share private fishing information with club members who have proven they know what's going on. Fishing Report Clubs Link also in Menu above. Apply to become a member today, while it's still easy. 

    You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

  • 0
Sign in to follow this  
anchor man

Oil change for Yamaha 4 stroke F150 outboard


anchor man

I'm looking at doing my own oil changes and have had the shop do it during winterization for the past few seasons so I'm not to certain on the procedure for this engine. Is it as simple as pulling the drain screw, changing the filter and adding fresh oil? Is there anything else to be aware of? Also, is there a big difference in quality for the oil filters from name brand to cheapo brands?


Share this post

Link to post
Share on other sites

2 answers to this question

Recommended Posts

  • 0

Changing oil can be very messy with the Yamaha 4 strokes. The oil plug is above the prop and when you pull the plug oil drips down the whole lower unit making a messy clean up. What I found works is to get a fitting the same size as the plug and connect a hose to it and drain into a pail.

Move the motor up and down and let it sit for a hour or so. This gets most of the old oil out.

I also then change the filter out. Get the Yamaha Filter. Its not much more. I run amsoil and run the yamaha filters and have had very good luck with them.

I also drain out the lower unit and fill it up. I do this all once in the summer and right when I winterize.

I put on a lot of hours on though so most people wont need to do this but once when winterizing.

Share this post

Link to post
Share on other sites
  • 0
Water Hazard

If your 150hp is anything like my 60hp Yamaha 4-stroke, you shouldn't have much trouble at all.

I bought the boat/motor new last year and didn't have any experience changing boat motor oil and I was able to figure it out. I followed the instructions in the manual and things went really smooth.

I start by opening the cap where you will eventually fill the oil. Then I open the drain plug and let the oil drain. There is a short rubber hose (maybe 1" long) built into my motor that drains the oil away from the motor housing.

Once the oil flow slows to a trickle, put the plug back in.

The oil filter is a little trickier. It is a horizontal arrangement...I made one heck of a mess last year with this. In order to make less of a mess, I'd turn the motor so that the oil can drain into the filter as much as possible. Stuff a couple of absorbent rags under the filter. Unscrew the filter and have something to catch some of oil right away.

Reinstall the new filter with some oil on the rubber seal.

Refill the oil using the quantity in the owner's manual and you are good to go.

Share this post

Link to post
Share on other sites
This topic is now closed to further replies.
Sign in to follow this  

  • Your Responses - Share & Have Fun :)

    • derbier122x
      Mine says it expires 2/25 this year. Either that or it' too work out to read.
    • mrpike1973
      Fished 4 days this last weekend. 1 tullibee, 1 walleye, sun up to sun down drilled and moved several times. Fun to fish but came home and limited out on sunnies on a small lake near me the allure of the big pond is over for me. Just my 2 cents good luck and have fun if you go.
    • Ron Vroom
      When I purchased them at a sports show, the guy doing the demo recommended the small duckbill pliers he was using sold by Menard’s. I tried using a small needle nose as well as a leather man, and ruined quite a few. I got the duck bills at Menard’s and that was the ticket, just like the guy said! I think the pressure is spread more evenly over the stop.
    • Alex wilhelmi
      That's what I want to hear. Thank you sir
    • monstermoose78
      It’s still a blast to fish
    • Alex wilhelmi
      thank you tom sawyer good to know,
    • Tom Sawyer
      Walleye numbers are strong. Unfortunate for the fisherman, the perch forage base on the lake has exploded. Lots of 3" - 5" food for the walleye = a tough bite....  
    • Alex wilhelmi
      Ok guys just a question not looking for places to go or tips. Just a question about the fish numbers. I've read multiple reviews that are good and bad, some say the Indians are over fishing it, others say all the sleeper houses are over fishing it. That and when the DNR does their number count. Walleye numbers are really low. Others say it's awesome fishing. But the bass and big walleye and Pike are eating all the young eyes. It's a huge lake it has to be good! Friend of mine went up with a portable Last weekend for the tournament and a 2.5 lb tullibee won the whole thing. And he didn't catch a thing. Long trip from Iowa to get beat down like that. I want to fish this lake so bad, with a portable or sleeper. But is it worth it? Fish numbers good or not? Thanks guys
    • Wanderer
      Yah, that lake is going to be crazy busier than normal this weekend. Another poster asked about rental wheelhouses a week or so ago and they were pointed toward C l I s t.  You could try that as well since they’re dealer based.
    • Sculpin
      Not sure who you have tried,  but it can be difficult as a result of the Perch Extravaganza. I have to believe somebody has a shack yet. I'll throw out some name's: Jerry Brandts,  Eddy Lybacks, Kevin McQuoids (Macs Twin Bay), Hunter Winfields, Dickies, Castaways, Agate Bay, Hunters Point, Barnacles, Red Door, Twin Pines, Garrison Sports, Rocky Reef, Appledorns, KJ's Ice fishing, Randys Rentals. Good Luck, hope you find a shack
  • Share & Have Fun