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

Find the parts for your Yamaha F225 lower unit rebuild here: http://bit.ly/Yamaha-outboard-lower-unit-rebuild

Watch as we do a lower unit rebuild on a Yamaha F225 outboard motor. This is a complex process, and in reality it would make little sense to undertake this entire job from a financial standpoint. A unit with this much damage? It would be much easier to replace the whole unit.

However, we want you to see each part of this process in case you need to perform repairs on your outboard. In the video, John will start with an essential step: understanding the deviation from zero in the lower unit. This will allow you to fine-tune the position of the forward, reverse, and pinion gears so that they interact correctly using a range of shims. John will show you how to shim the lower unit to get the gears to the right place.

Then, we’ll install the forward and reverse gears and get the prop shaft housing ready for installation. Next, we’ll work on the input shaft and shift assembly. We’ll turn our attention to the output shaft and then get the prop shaft housing installed.

After we get the shift shaft built up and installed, the process turns back to the math. John will explain how you need to figure out the forward and reverse gear backlash and get the right shims for the pinion gear to position it correctly. This will involve a little work, since we’ll have to disassemble, reassemble, and then check components, but this is the best way to ensure the lower unit works properly.

See a diagram of the lower unit on your Yamaha 225 outboard here: https://www.boats.net/catalog/yamaha/outboard-by-hp/225hp/lf225txrc-2004/lower-casing-drive-3?utm_source=youtube&utm_medium=video&utm_campaign=description_btf_BDN

Read how to do this job step by ste: https://www.boats.net/blog/yamaha/f225/outboard/lower/unit/rebuild?utm_source=youtube&utm_medium=video&utm_campaign=BDN-description-blog-link

Need to know how to disassemble a Yamaha lower unit? Start here: https://youtu.be/MnuyN-qHilg

See how an outboard lower unit works here: https://youtu.be/A2TWPJibCQo

Learn how to replace the input shaft seals on your Yamaha F225:
https://youtu.be/VYaR8BL_fOI

Watch a Yamaha 225 output shaft seal replacement:
https://youtu.be/N07HmX0GEJM

VIDEO HIGHLIGHTS:
Finding deviation in lower unit - 3:15
Finding shim size - 4:20
Installing shims and driving bearings - 6:40
Prop shaft main bearing installation - 8:30
Reverse gear shim installation - 11:29
Installing needle bearings - 12:10
Input shaft installation - 15:55
Shift assembly - 18:45
Output shaft installation - 22:50
Installing prop shaft housing - 23:30
Building and installing shift shaft - 24:10
Calculating pinion gear shims - 25:30
Measuring backlash - 26:00

Find Yamaha outboard parts here: https://www.boats.net/catalog/yamaha/outboard-by-hp?utm_source=youtube&utm_medium=video&utm_campaign=description_btf

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In the video we’re working with a Yamaha F225 outboard motor, but you may have similar steps for your Yamaha outboard. If you’re not sure whether these steps apply to your motor, leave a comment and we’ll get back to you.

RELATED VIDEOS

Outboard lower unit troubleshooting:
https://youtu.be/ZVleLYy5Q1g

Yamaha 225 powerhead rebuild playlist:
https://www.youtube.com/watch?v=T54dY8jpVYI&list=PL0y6sISyOt_2BiFtAH8yxq0aw5J5ZRZ5L

Видео Yamaha Outboard Lower Unit Rebuild | Yamaha F225 Lower Unit Rebuild | Boats.net канала Boat Parts