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

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
GudeMN

Yamaha 3hp Question

5 posts in this topic

I have a 1990-something 3hp Yamaha I tried out tonight for the first time. Fired up great, ran like a top except for one concern I have. No water coming out of the "pee hole". I actually couldn't find a pee hole on the thing. It didn't seem right and after 5 minutes or so.... performance seemed to lag and the motor would kill. Overheat I assumed. Back on shore I took the hood off looked everywhere inside and out but couldn't come up with a hole I was confident water should be coming out of. I know some low HP motors are air-cooled but I didn't think this one was. Any insight from any one. The tag with serial/model number is absent so I can't be sure of year/model but the seller assured me it was mid-90's. Clean as can be on the inside and ran great. Just a bit concerned about the absence of a steady stream coming out. Thanks for any help.

Share this post


Link to post
Share on other sites

Hey Gudemn,

I have a mid 90's 3hp, I havn't run it for a while. I will put in on a small boat this week and report back to you.

Share this post


Link to post
Share on other sites

Check to see if it has a water intake on the lower unit...If there is a screen down there, it's water cooled (and probably is) and you either have a plugged water tube someplace or your impeller needs replacing.

If you can find the tell tail (Pea Hole), check to make sure it's not plugged by sticking a Paper clip or something in the hole and see if it is plugged (it's the smallest hole in the system past the intake screen). If it is plugged with a small pebble or something, disconnect the end of the hose while running in water and let the water flush it out.

If all that looks good, then you need to replace the impeller. You can bring it somewhere to have it done or do it yourself. It's really not a hard job, and can be done pretty quickly if you're fairly handy. The hardest part is figuring how your particular lower unit comes apart, then it's just dropping it out, taking the water pump housing apart, and replacing the impeller the same way it came out...It's just things like lining up the shafts, water tube, etc again when putting it back together that can be a pain once in a while.

Good luck...and if it is air cooled??? Forget everything I said. grin

Share this post


Link to post
Share on other sites

The 3 HP is water cooled. I'm certain of that.

What I'm not certain about is if it has a telltale stream - some smaller motors exhaust all of the water through the exhaust port.

Take a look under the hood - are there any hoses that run from the head / block area to the cowl?

marine_man

Share this post


Link to post
Share on other sites

Thanks for all the responses guys. It is water cooled, that I found out for sure. But I haven't been able to to find the pee hole to be sure. There aren't any hoses running to the base of the cowl so marine_man may have nailed that one. I'm going to stick it in a tub and run it for awhile to get a look before I take it in. I had it on a MoMarsh Fatboy marsh boat while running it and there was no way to get a good look at the motor while underway. Thanks for the help. I write if I discover anything.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Looks interesting. They have those nets that you put down a hole that do the same thing, but I can see where some people would prefer this more solid version.
    •   The land in question is a 40 acre parcel up near Remer. My FIL's uncle has owned it since my FIL was a small child and he has been spending time up there ever since. It's a cool parcel of land with lake frontage but it is hard to get to. The last mile or so is basically an ATV trail. When it is dry enough we can get in with trucks but the last time I was up there there were a lot of trees across the trail that would need to be cleared.    I would love to be able to own that land but ultimately it has to be an immediate family member. My FIL says he was supposed to inherit it because his dad used to be half owner as well. It is looking less and less likely that will happen because the current owner's wife is in a nursing home and the money has run out. We think there may be a lien on the property already but don't know for sure.    My FIL needs to talk to his uncle about the situation before it's too late but I think he is holding out hoping to inherit it. I hope that happens but I'm pretty sure it won't.
    • This is a good way to keep them crisp
    •   I was just wondering where it was since you said you needed a 4 wheeler to get into it. I know the woods up in that area pretty well after years of hunting, snowmobiling and Dual Sport riding all over. Not thinking of buying but just wondering where it was?
    • I'm not fighting with anyone.   Many ways to make antennas, and for receivers in cars wavelengths aren't all that important.   Class up your vehicle with a wire nut or a fox tail or whatever you like.  
    •   Still a possibility but due to family dynamics it would have to be a joint venture with my FIL. He is the one that would have to technically make the purchase and we would go halves with him but he isn't doing anything about it right now.    It may still be a possibility but I'm not holding my breath.
    • sounds like draw length is too long
    • Wax all the string except where the serving is as the wax can get under it and cause it to slip   You should be able to tell the serving because the string will be thicker. Serving is just a thin string wrapped around you bow string. Will be around your peep sight around your d loop   If all else fails just go to your local archery shop and ask them for some pointer about waxing and other general bow maintenance that you should be doing hope some of this info helps though good luck!  
    •     http://www.lancasterarchery.com/blog/how-to-wax-a-bowstring-and-other-basic-string-maintenance/  
    • try boiling in water then let soak a couple days and blast them with pressure washer
  • Our Sponsors