Jump to content
  • GUESTS

    If you want access to members only forums on HSO, you will gain access only when you Sign-in or Sign-Up .

    This box will disappear once you are signed in as a member. 😀

  • RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE

    You know what we all love...

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

Sign in to follow this  
Chapo

Yamaha 115 / 4 Stroke ?'s

Recommended Posts

I recently bought a boat with an 02 Yamaha 115, 4 stroke. No manual with boat and previous boat owner had everything done by the marina. This is my first 4 stroke, the questions I have is:

What octane fuel is best to use?

What viscosity oil to use/would full synthetic be better?

What to use for the lower unit?

What has to be done for winterization?

Thanks for your help.

Share this post


Link to post
Share on other sites

Use non-oxy gas when possible

10w-30 Marine 4 stroke oil-High quality major brand

Marine Gear Lube-High quality major brand

To winterize, Stabalize the gas, change gear lube, engine oil and filter, fog engine, grease all zerks and drain the VST tank (vapor separator)

Share this post


Link to post
Share on other sites

Chapo....good questions! Pending the checkout at a dealer tomorrow I may also have an 02 Yamaha 115 4-stroke in my garage this weekend. My first boat so great timing on this post!

Share this post


Link to post
Share on other sites

I have a 03 Yamaha 115 4 Stroke and love it. I run Amsoil 4 stroke oil in it and their lower unit oil. I run Premium gas most of the time but I go through a lot of gas so regular unleaded is used often too. I just wouldnt run it all the time I guess.

If you dont like Amsoil than just run the Yamaha Oil.

When I winterize I put Stabil in the tank and run the boat for that last day out. I then change plugs and change filter and oil and lower unit lube. Make sure you drain all the water out of the boat and livewells and grease trailer and charge batteries up. I keep them in the boat in the garage and charge monthly. Take all graphs inside.

If you have mice around put dryer sheets in all storage.

Share this post


Link to post
Share on other sites

The VST is behind the intake manifold. There is a slotted drain screw at the bottom of it.

Share this post


Link to post
Share on other sites

Just do a search for Yamaha on the net, and you can download the exact manual you need, for free. I know because I did it this past fall when I got my new setup. I didn't print it out because it is like 80 pages, but I saved it on my laptop if I need to look at it. All of those questions are of course in the manual.

Share this post


Link to post
Share on other sites

Just do a search for Yamaha on the net, and you can download the exact manual you need, for free. I know because I did it this past fall when I got my new setup. I didn't print it out because it is like 80 pages, but I saved it on my laptop if I need to look at it. All of those questions are of course in the manual.

Just FYI... I don't think you can print these manuals. Something in the PDF that won't allow it. But yes, you can download them and save the electronic copy on your PC.

Share this post


Link to post
Share on other sites

I know there have been other posts, but how much harm will using a non-marine synthetic oil in a four stroke cause? Can Mobile 1 sythetic be used safely in a Yamaha f150?

Share this post


Link to post
Share on other sites

I would go with what's recommended. Its cheaper than a new motor. (I also agree with marine_man

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Your Responses - Share & Have Fun :)

    • Looks like fish to Me? Not a veggie in sight.🤔   I'm not particular though --I'd still eat em . The Rings--I've used worse-- ?
    • Swiveldigger gets the big win with----346 pts. 2--Juneau4                    298 3--icefishinnut               291 4--BlackLundProV         290   (Ouch)   Just checking for a response.🤐 5--Fishing_Novice         286 6--Rip_Some_Lip           283 7--huckfin                        279 8--mnwildman                257 9--rl_sd                            197   ------------------------------------------------------------------------------------------ Season totals: 1--Fishing_Novice                  6756                         You've  gotta quit taken the same picks.😁 2--Juneau4                              6547 3--BlackLundProV                  6504 4--huckfin                                6488 5--Rip_Some_Lip                    6353 6--icefishinnut                         6311 7--Swiveldigger                       6189 8--mnwildman                         6166 9--rl_sd                                     5696
    • If things in there were actually a bargain they might’ve moved more stuff.  I’ve picked up a couple things there but not more than 5-10% of the times I’ve visited it.   The pricing coupled with the “as is” , no returns policy kept me a bit gun shy of making it a viable source of gear.
    • At least you’re settling for three strikes and you’re out!   Tough start but at least you know now and have a chance to rebound in some way.  Hopefully you can at least get that late season hunt on the “old” property.  Always tough when the permission starts fading after working and and getting to know a good property.
    • Looks like severe heartburn to me!😄
    • As stated for the above reasons....I totally agree.  I can tell you this much, I also hunt late into the season if I am not tagged out, and I loosen my sling more so my thick gloves will slide through it and I can grip my bow.  I have always shot with one, so i can't speak to shooting without one.  I get a piece of mind having it that I can relax my grip and now worry about the bow "jumping" out of my hand,
    • Antsy?  That would be an understatement.  I got out bow hunting 1 time last year due to the job I was working at the time.  That job is history and am now working a job that will allow me to hunt as much as I used to.  Last month has been pretty much a disaster.......the land that we hunt on, first when we went in to kill the areas for the food plot, the guy running the sprayer decided it would be a good idea to put Roundup on the clover plot I put in last year.  It was thick and awesome and I could tell the deer were just hammering it.  Mostly does and fawns, couple small bucks, but hey, when the does need a man, he usually shows up.  Needless to say, I was a little upset when this happened.  Almost lost it when the guy got done spraying the plot and then drove over to me and said "I killed that plot, we should plant a clover or chicory plot there".  Just shook my head and walked away.  Strike one......then about 2 weeks ago the owner of the property informed us that we would no longer be able to bow hunt on his land.  Only muzzleloader, and that's only if they are completely tagged out by then.  STRIKE TWO........so I just planted over 200 dollars worth of seed in food plots that I may never even get to hunt over.  STRIKE THREE!!!!   So now I am in scramble mode to try and find some private land to hunt or start getting out to scout public land in hopes to find a good spot.  All i can do is make the best out of it and hopefully things work out the best.  Either way.....I'm going to up a tree somewhere and totally loving the experience of sitting in the woods with mother nature, with a huge smile on my face!!!!
    • Hey all...........thinking about pulling the trigger on a new bow for the upcoming season (I know a little late in the year, but it is what it is in my world).  Right now I am shooting an Elite GT500 which is a double cam bow.  Thinking about possibly going to a single cam instead of the double but not really sure if that is the route I want to take.  Looking for opinions from folk who shoot either and what they like don't like about the bow.  Not looking for any bow bashing, just what everyone likes and why.  Thanks!
    • I did this with a friend. I actually think it was what is called back bacon not buckboard as he cut it out of the rear loin instead of the shoulder. IMHO it tastes really good. Like a ham of sorts. If it goes over well then I'll do a batch from the shoulder and I think the extra fat content will work better.   I used a bacon mix from Walton's that I ordered. 
×