1989 Yamaha 9.9hp Outboard: Can I get this old 4 stroke running?

[@krisjcleveland]

Awesome video and how you breathed new life into an old motor was very instructional too! Appreciate your efforts 💕

[@pop4725]

Bought the same outboard yesterday, $300, gonna follow what you did and hopefully get it running … thanks

[@JohnSmith-pl2bk]

Hopefully you did not exactly follow this vid... or if you did you modified it to use a logical and well thought out pattern to bringing yours back to life...

[@123pwop]

Worked out, put a new pull rope, new Impeller, lower grease, then found out the power pack was bad , replaced, took it out ran like a top, still running strong! Thanks .

[@paulsullivan9117]

Nice job..... very good information and I enjoy how you just get with it on your video and not wasting time talking more then what is needed. Thanks

[@djtime45]

You made this very digestible for a beginner I really feel now I can do some restoration with my new boat it’s old bit looks good so thanks

[@isaackappy1509]

I have the same motor, has no spark. Thinking cdi or coils. Looks like a fun machine

[@davidbrewer8309]

There's supposed to be a hard clear plastic cover over that plunger on the carb. Mine also looks like it has an electric starter but didn't come with a factory button.

[@JohnSmith-pl2bk]

Why did you not clean those "dirty" lines up? Why did you not replace those brittle fuel lines to and from the pump? Why did you not ground both spark plugs at the same time (using crocodile clips and wires) so the CDI unit would not be at risk of blowing up? Why did you not take every electrical plug and connection apart and clean them...as corrosion is the worst thing for an engine used in a wet environment? Why did you not immediately disassemble the leg and check the impellor before it shattered and drove all those bits of rubber up into the head and cooling passages?

[@wesleystancombe2309]

Can I get a picture of the wiring for the is my wires got twisted in the flywheel and I’m trying to rewire it I’m lost tbh lol I have the exact same motor

[@JohnSmith-pl2bk]

Google should have answered your wiring diagram query???

[@johncarlberg4481]

This Channel is so underrated!

[@chriseisele9969]

Great job man that yamaha is quiet 🤫 Chris from OHIO

[@JoeMaher-r8m]

What is the little adjuster on top of carburetor, has small straight blade slot. Looks stainless and has rubber sleeve around it?

[@Scott.Farkus]

That looks like it has the wires(2 green wires) so you can put a rectifier on it to charge your battery.

[@krisjcleveland]

I have a question regarding the same motor but it has controls to a remote control box. How would I find a schematic of how the shift and throttle cables are installed and connected?

[@bestgreenhomestead]

I have the same issue with control box needed. Did you find anything?

[@EdikTORONTO]

Very nice video! Everything understandable and clear! QUESTION: Is there an oil filter? Or how the engine oil filtrates ? Please let me know. Thank you in advance!

[@JohnSmith-pl2bk]

Hopefully you have found that Google gives the answer..it has a replaceable oil filter...

[@TerryNugent-ds5ys]

Is the red button on the front the starter

[@wish2fish37]

Good job on this one.What size adapter did you need for compression test?

[@MakeItBetter1]

It is a 10mm adapter. Here is the link to what I ordered on Amazon. 10 mm Spark Plug Adapter

[@123pwop]

You Da` man , wish I had your calm and patience to try to do more of my own work on my motors !! Thanks for the encouragement ! I`ve been trying to find more info on this particular motor, theres one for sale, near me asking $1000 OBO ? Is that a fair price ? Supposed to have been fully serviced 3 yrs. ago, pretty much been sitting since ? Never had a four stroke ?? Thanks, Philip.

[@JohnSmith-pl2bk]

How did you go with your motor?

[@robertlong9552]

What is the compression spec on this motor if you know please 🙏. Great video nicely put together

[@MakeItBetter1]

Compression was ~89 and 90

[@robertlong9552]

@@MakeItBetter1 and is that in spec according to the manual?

[@MakeItBetter1]

@@robertlong9552 I don't have the service manual for this model. Generally 90 psi and above is considered acceptable.

[@robertlong9552]

@@MakeItBetter1 great stuff man thank you

[@bestgreenhomestead]

I have same motor. I can’t get a compression tester to fit. Bought a leak down tester kit but the spark plug well is too narrow to fit it. Do you have a link for me for one you used? Thanks

[@jamesg4195]

when you change the oil on this engine do you fill it all the way up to the line or halfway in the grid pattern on the dip stick? Thanks.

[@JohnSmith-pl2bk]

read the manual..... don't forget the oil filter...

[@RustyShakleford1]

why was the compression so low? did you have the throttle body closed and not all the way open?

[@serdarbozkurt2348]

That was my first idea...I guess he did´nt open the throttle.

[@georgemcghee4512]

man i just picked one up about 3 weeks ago. didnt have a carb so i though i could source on.. i cant find one anywhere. would you happen to know if i can use a newer 9.9 carb.??

[@MakeItBetter1]

I'm not 100%, but I think they used the same carb up into the early 90's.

[@msgt1942]

Were did u get adapter for plugs to check compression also the impeller I ordered on but it was to big link or part number would be a big help thanks I just bought same motor 1988 trying to get it to run.

[@MakeItBetter1]

Impeller Link amzn.to/3s1NEKl Compression Tester Adapter amzn.to/2VA6v3h

[@msgt1942]

@@MakeItBetter1 thank you do much!!!! I kept buying wrong impellers from amazon always seemed slightly to big.

[@robertlong9552]

@@msgt1942 they are suppose to be slightly bigger than housing and fins sit at an angle inside .helps to twist shaft to get it to go in.

[@caveman_period6282]

Congratulations! I used to own the same model in early nineties. Fantastic machine. You will love it. Have you bought this one just recently? I think I saw a similar motor for sale a few weeks ago.

[@MakeItBetter1]

Yes, I just got it a couple weeks ago.

[@cvaladez5]

Anyone else have this outboard or parts for it?

[@djtime45]

I haven’t got around to my first ew boat yahmaha 9.9 similar to this outboard it rained a few times any tips?

[@MakeItBetter1]

I love these old yamahas. Change the fluids and impeller and let her rip!

[@djtime45]

@@MakeItBetter1 will do

[@djtime45]

Would you recommend spark plugs as well? Or anything else? Still haven’t tried it yet

[@JohnSmith-pl2bk]

@@djtime45 Change the oil filter.....

[@cvaladez5]

I'll buy that carb!

[@user-be2qq2ed7g]

I have a similar 1992 T9.9EXHQ. I put it away in storage, 5 years later when I take it out of storage, I have no spark. I'm troubleshooting with a DVA and I get values that are within spec for the charge coil (105v)and pulsar coil (4.05v), but the CDI output is lower than spec, 60v actual, spec is 95v. Is this enough on it's own to stop the spark? Or more importantly, to warrant buying a CDI ? Love to hear about it anyone has had a similar experience.

[@JohnSmith-pl2bk]

Hopefully by now you have got a new or new to you CDI unit. If you test the spark plugs out of the head like shown on this vid, without clamping both sparkplugs to ground at the same time using crocodile clamps and wires.....you risk blowing the CDI unit...

[@guyanesegamer1693]

I just picked one up for 140 bucks

[@garycotz563]

Ok let's see some FISH!