Will this motor run after years of sitting? Working on a 9.9 mercury outboard

[@MunkyWrench]

Always a pleasure to watch u work

[@outboardfinatic]

Means a lot. Thought it was a pretty good vid but getting better at showing everything I can

[@maciwinski601]

Ur videos getting really good! Awesome job !

[@chriseisele9969]

Great work brother keep up the great work Chris from OHIO

[@alekthefisherman5676]

These 6,8,9.9 and 15 are a low compression motor. They do that for a easy starting. My dad’s friend who have a mercury shop for 50+ years told me this. He also said that anything below 60psi on these motor, it’s time to change the ring.

[@outboardfinatic]

Appreciate the comment and that’s awesome. From what I’ve read in manuals and just overtime working on them anything below 90 on these for compression will make them run very poorly. I am able to look in the cylinders with a borescope camera so I’m usually able to tell if it’s going to be a runner or not. I’ve never seen one run or even try to run if the compression was below 90.

[@alekthefisherman5676]

Stay safe on the water. And be sure to make more video✌️

[@baileysmith6266]

great vid

[@daveclark8726]

This is a nice video.

[@danevans9347]

thanks

[@chadschafer1723]

What do you need besides the carb kit and plugs to change it from a 9.9 to 15. Where do you get the new larger jet

[@mogrady31able]

So, do you have info on the specific parts needed to turn the 9.9 into a 15hp? I just picked up a decent 1996 9.9hp for $300. I have a nice 8hp yamaha on my dinghy currently but need more hp!

[@chantellemaelei]

nice vids 🤠

[@SaltLife4Us]

Great video! What’s the make/model of that boat you used for the test drive?

[@outboardfinatic]

Thank you for the comment! And it’s a 14 ft mirror craft. Gone have a lot of upgrades over the winter. Gon be redoing the transom and I came up with someone thing to run both longshaft and Shortshaft motors so stay posted for the future content!

[@SaltLife4Us]

@@outboardfinatic very nice. I’m looking for an aluminum boat at that size and like the high bow on that one.

[@theglobalvagabond3074]

Nice video. Is there are reason you didn't lube or fog the cylinders before pulling the cord?

[@outboardfinatic]

I Only do that if the flywheel is locked up or stiff or something like that. I also have a bore scope camera which I wanna show in videos but the camera makes it look weird so I can’t really show what I can see in the cylinder.

[@theglobalvagabond3074]

@@outboardfinatic It would probably be appreciated by your viewers if you went thru the entire process as if the pistons were rusted and seized. You don't have to show the viewer the actual image from the bore scope, but telling them that this is one of the steps would be helpful to IMO.

[@timothyconor]

please help, at the 9.19 mark, where did that ball bearing come from? I just disassembled my carb to clean and now cant figure out where to put that thing . Thanks and great work!

[@outboardfinatic]

Bowl side of carb. Flip it so the opening of the bowl is facing down. Put the ball where the plunger is on the other side. Then you put the tiny spring in with the bolt that is hollow on the inside. And don’t forget your gaskets

[@MegaBait1616]

Subbed ya .... ya near the Delaware River ?? I'm in NJ.....Question : you like Merc's or Yammies ?? TY.....Be Well.

[@outboardfinatic]

I’m close to it I’m in pa. And I personally like both. I’m a Suzuki guy tho when it comes to the newer 4 strokes. But then again I’m suzuki certified cus my job are suzuki dealers. But when it comes to 2 strokes nothing can really beat a Yamaha as they hold their value so we’ll

[@MegaBait1616]

@@outboardfinatic , thanks.......have a great weekend..

[@chriseisele9969]

To bad all off them aren't that easy for you good job Chris from OHIO

[@outboardfinatic]

Honestly wish they were always easy

[@chriseisele9969]

@@outboardfinatic so I see you are in Pennsylvania im in ohio

[@outboardfinatic]

@@chriseisele9969 yup about an hr or so out of Philadelphia

[@ryanyanos2892]

What is the reason for the face mask/shield?

[@outboardfinatic]

Just hides my identity and I enjoy wearing them day today

[@northcarolinabassin7643]

Is that thing missing the thermostat? I did it think those pumped a strong stream til it was good and warm

[@outboardfinatic]

Your absolutely correct. But I already had the motor warm for the video. Also a lot of people forget that there are a couple different versions of this motor. For the most part they are pretty similar but some have different housings that require two washers that go in the water pump. So I’ve seen them pump stream right away and others wait for the thermostat to open. But I always check block for temp w temp gun and never overheated

[@northcarolinabassin7643]

Thanks so much for the reply, I just picked up a mid 90s 15hp. Guy said it wouldn’t run, and when pumping primer bulb it was leaking gas everywhere. I took it apart and found a tiny crack in the float and it had with gas. Got a new float on the way with a rebuild kit. Only other thing the motor needs is a choke knob. If you can would you mind to make a video particularly on these carbs?

[@outboardfinatic]

@@northcarolinabassin7643 absolutely. I know these carbs like the back of my hand at this point lol. What would you like to see in particular. I have in mind I can do removal,rebuild, and reinstall and do my best going step by step. Cus they can be tricky sometimes

[@northcarolinabassin7643]

@@outboardfinatic yeah that sounds awesome, I have done a lot of Yamaha carbs but these seem to have a pretty different design. If you could just explain what each thing does as you go through it

[@vitekvvvy5075]

Where can I find ur engine for sale?

[@outboardfinatic]

I sell them on market place and Craigslist etc but I’m in the pa area and unfortunately I can give my account name just cus I don’t wanna get bombarded w fakes etc

[@Spikexphil]

How could you tell if its a 6hp, 8hp, 9.9hp, or 15hp older merc? If theyre all the same.... Serial number plate gone.

[@outboardfinatic]

Personally I would take the carb apart and look at the main jet that’s in the drain screw. 6hp-.039 8hp-.046 9.9hp- .056 15 hp- .072 One of these numbers should be stamped on the jet located on the drain screw if the carb. As long as it’s the original carbs and hasnt been messed with that’ll tell you what hp it is