Yamaha Outboard Lower Unit Rebuild | Yamaha F225 Lower Unit Rebuild | Boats.net

[@cannedham3774]

John, I love watching your videos. I dont even own a yamaha outboard.. But I find myself turning into your videos just to follow your methodology when troubleshooting or making a repair. Thank you.

[@xxthewolfxx]

@BoatParts --I just wanted to say this guy has a gift for instructing/teaching..I have known about him for a few years and always enjoy his instruction. -Just another wrench turner.

[@robertjackson7590]

Excellent tutorial John.......... I've got a VMAX HPDI 250 that I'm getting mounted on my boat soon. I'll do the water pump, change the fluids, wiring the boat now. Again great job and keep it up.

[@briannoh620]

John, thanks for taking the time to put together a informative video. I am in the process of rebuilding the lower unit on my F225 and must have watched your videos at least 5 times today to educate myself. Service manual is nice but it makes much more sense after I watched your video. Question: When measuring the backlash at the end, where do you measure the backlash in relation to the center of your drive shaft? Do you measure the radius of the pinion, add that measurement to the radius? Thanks in advance for the comment you might provide.

[@malikvouvilifvouvil2913]

i've never seen amizing and good professor as you thank's

[@allanthomson4639]

thank you - much appreciated - greetings and health from South Africa - I was looking for the concepts of shimming and found it, also looking for an online course that can teach me more on o/board maitenance+repair+shimming+gearbox setting+engine/powerhead electronics - any ideas?????

[@KoldKillaC]

Could you list the specialty tools? Also, a video on dialing in the drive shaft would be awesome! Thanks!

[@joegarcia9221]

This guy is such a badass!

[@TheDuffman1986]

Brilliant information, my engine wasn’t going forward, just into neutral and reverse, took the gearbox apart n fixed what I thought was the problem but after assembling it back it now goes into neutral and forward but not reverse, I’m starting to think it may be something todo with the shift shaft?

[@havocsquad1]

Well put video detailing the shimming process regarding lower units. Each manufacturer varies in how it is done, but the video does a good job showing that you can't just throw parts in and expect it to work.

[@tunti23]

Hi there, nice video, but... I have a question... The play between the dog and shaft do not affect the total play? How determinate just the gears play?

[@kenlow4028]

Top gun mechanic. Did u find the needle bearing,

[@TheTengkolokusang]

Hi John. Thank you on your very detailed video.. love it.. i dont habe the shim guage yb 06439. Could you be soo kind to provide me with the measurement of the tools so i can fabricate the tools my self. Hope to hear from u soon..cheers

[@happysimeon7624]

Thank for this video because it help allot

[@evanpeters2885]

Hi John. What if you wanted to take apart the gearbox to sandblast it. Will it just go back together perfect or will you need to redo the shimming.

[@janetgidius7817]

while viewing this video when you were measuring backlash I noticed you didn't where the dial indicator should be located. It makes a huge difference where it is mounted. Out 1/4 inch or in 1/4 inch changes indicator reading drastically. On the yamaha tool there is exact mark for the indicator bracket. manual also gives exact height to locate indicator tool. I can't find tool. is there a way to figure out where it should be located?

[@EmmanuelYawson-kw1vy]

Good morning Sir I need parts for Yamaha 40hp,25hp,15hp

[@batmanle428]

If my backlash for forward and reverses is 22.71mm both is about the same measurement do I need to change my pinion shim? The 22.71mm is way off how can I get closer to spec ?

[@raymorgan7177]

can we get a video on changing out the upper housing on yamaha 225 v-max 2003

[@ryangallagher3611]

The F and R under the trim tab do not mean forward and reverse.

[@reelguy8856]

Correct it means forward and rear of the gear case

[@timothyberrian267]

What is the need to pull up on drive shaft while pressing the plastic sleeve with metal cap on.

[@ryangallagher3611]

Timothy Berrian it pre loads the drive shaft. If you don’t you will here a knocking noise at idle and will go away with rpm increase.

[@alexgonzalez98]

I have a 1989 yamaha 90hp, I need to reseal my tilt trim. What spanner wrench works for those caps?

[@listentovictor]

Very informative video, unbelievable how prices these tolerances are. So what would cause back and forward (in and out of the housing) play in the prop shaft? I have one Yamaha F150 lower unit that has almost none and the other has quite a bit? The one that has plan in it, STBD side, it quite a bit noiser than the other one in general.

[@randymoseman3698]

I have the same question. I have a LU on a F250XA that has 1/4" of play on the prop shaft. I am putting on a new LU, but wondering what I am going to need to fix the old one to keep as a spare.

[@andrewbielecki7442]

Hi - Great video! If just replacing a prop shaft (2013 F300) do you have to go through the shim process?

[@geraldlacasse7986]

In my opinion, yes. The prop shaft is held in place(in/out) with the reverse gear and bearing carrier. The distance of the final race is also involved. GL

[@reelguy8856]

Yes. 4.2 liter, all v8s and all counter rotating lower units you have to shim. All others if you are just replacing the prop shaft you do not.

[@SD-unlimited]

What if you’re just replacing the dog clutch? Any need to re-shim? 2001 HPDI 200

[@phanchinh2038]

I would like to address to buy tool yamaha sterndrive DE-DHD, please

[@phanchinh2038]

Please, Boats Parts! I need a website that sells repair kits yamaha sterndrive DE- DHD

[@poysunivey]

It’s easier and cheaper to just buy an new lower unit.

[@ralphagbai9951]

whats the name & part number of the yamaha special tool that measures beginning shim size for the pinion gear

[@chadhayes5016]

Sir, I have been a millwright for many years and I must say, I would consider this video and your practices to be of the most professional I've seen! You have my respect.

[@erikprestan]

Español lo video no se incle

[@reinhardtrippmacher8776]

Wow, I like the way you are explaining this precession job! I am looking at this job soon. That was a good school! Thank you Sir!

[@ralphagbai9951]

Could be kind enough to list the speciality tools required to get this job done. Thx

[@orelvys19]

Good morning I have a mercury 2004 225 the same year that was made by Yamaha . If I want to order a lower unit which on do I order in all the f225 . I called boat. Net and they couldn’t tell me . Thank you in advance

[@opticalinch]

This is not a job you invite your buddies over to the garage with some beers to help you. Well done sir.

[@viperfukgoogplus386]

Must be nice to work on a brand new unit untouched by salt water and corrosion. Thanks for showing the disassembly as well. 👍

[@yenealemmulatu6179]

I need for Yamaha F115AET lower unit rebuild.

[@makoumbiurbain3890]

Hi dear I 'eed a training on yamaha gear box please let me know.

[@ahmedafsal5780]

Need detailed shimming video

[@craigd5169]

What’s the part number on Yamaha tools

[@johncerro7486]

I have a 2018 Yamaha 200 HP the lower unit and engine holding bracket is Corroded we’re both need replace went to the outboard shop here in Oakland ca. No one has replacement parts not even Japan a new motor cost $20,000 plus I bought the the boat new it’s a 23 Ranger Tug any advise would be helpful thanks

[@sprinter144]

I had to watch the whole video 3 times plus a couple places again to understand everything, but that’s only because I haven’t seen this done before. The video is well made. Great job!

[@chrisminer5712]

This was a great video. I just had a prop shaft replaced on a 1996 Yamaha 200 and after the repair the prop shaft now moves in and out about a 1/4 inch...prior to the repair it moved 1/16 if at all (just enough to prevent binding). The marine shop didn't touch any of the forward, reverse or pinion gears so I am not sure where or how there can now be movement as there isn't any spacing difference on the output shaft, seals, etc. withing the prop shaft housing? Any thoughts would help as I don't want to run it if the movement has the threat of additional damage?

[@suhailriyami454]

I have a Yamaha F250TXR 6P3 2010 make, I need a video of how to totally rebuild the low end. I'll appreiat if you could point me in the right direction if it is not the same as in a 225hp.

[@charleshooper3889]

I have a 115ETLJ and in the rear I have a nipple 6E5-45378-00-00 with a hose 90445-07MF2-00 connected to it and is closest to the gear shaft. When I was changing the Impeller I had to disconnect this hose when pulling out the lower unit and was wondering what this hose connection was for.

[@mikeireland8032]

Hi John, I have mercury out board lower unit on a inline 6 115 Hp, and they recommend loctite on the pinion gear. What loctite do you recommend the blue? Mike

[@BnShanhAkrmSalmBnShanh]

احسنت اخي الكريم

[@ttractortt5663]

Hello, I have a 15 hp Mercury engine, when I reverse it makes a shock and seems to barely go, it tends to rise up

[@andyvan5692]

at 15:50, one solution, use a plastic "bung" (for sealing leaking fittings on boats), or a sprung steel sheet, rolled up, this forces the needles out, keeping them in position; the insilation of the shaft can push this out, and with the spring steel, this can be removed afterwards quite easily.

[@zacklennard2925]

Im trying to rebuild a 2017 f70 lower and i have no idea where to find the gear shim tools i need or what the part numbers to them are

[@sammontgomery2067]

John I have a150 hp Yamaha with less than 200 hours. The prop shaft is bent .Can I replace the shaft and seal without messing with shaming Sam m

[@seanjordan5635]

great video! where can I find that slide hammer you used to pull the reverse gear out of the bearing carrier? appreciate the great info thank you

[@franciscomolina4871]

hola el ajuste del eje vertical en un yamaha de 80cv como se hace un el cojinete solo limita el ajuste hacia los piñones un saludo

[@marcoaurelio9879]

boa tarde, nosso motor e um yamaha 60 2 t, a alavanca do comando do piloto esta passando direto frente e ré não trava em neutro, pode me indicar uma solução, desde ja agradeço.

[@marksimmo9968]

when you put the gearbox back on the leg does it need a gasket or it bolts straight on

[@Trapper_812]

Can you get a whole lower unit for a 1987 Yamaha 25hp short shaft?

[@warrentphillips87]

Do you not need to check backlash? Im trying to figure it out right now

[@vernalwalters]

Is the M 0 the same for all housing if not how do you find the M 0

[@joemarquez2915]

Great tutorial, are you going to have one on a 250 pro sx in the future?

[@geraldlacasse7986]

Great video, very professional work! Just one thing. When you measure the backlash I believe, by listening the sounds that the measured backlash includes the ''slack'' in the clutch dog. Remember the forward. The prop shaft does not move but there is a slack between the tooths of the clutch dog and the tooths where the clutch dog 'bit' in the forward and reverse gears. Think about it and let me know!

[@happysimeon7624]

Pls sir need real details of the math

[@josevalovolovotikomailepan1215]

Do you have the lower unit overhaul kit for ek40j

[@kaleblong9765]

Helpful for me being a marine mechanic student

[@wglgee1347]

Hello John, how difficult would it be to convert a 30” engine to a 25” engine is it just a matter of replacing the input shaft and removing the extender?

[@geraldlacasse7986]

You will also need to replace the shift shaft for a shorter one. GL

[@DCmite1]

same process for an hpdi lower unit?

[@allanthomson4639]

thank you - watched again

[@Mr_Navil_Campo]

I would like to see a video of a detailed mid section ( exhaust rebuild ) of a 4 stroke F200 f225 or any of those with corrosion in the exhaust!!

[@BoatParts]

We will be addressing that in a upcoming video.

[@Mr_Navil_Campo]

Boat Parts that would be great

[@chunkyfather29]

John Tally is the Man !

[@davidpena6834]

Spanish pleace