Silly second gear repair question

[old_skool]

I know this is a tad bit early in my stage of repair, but come spring, after I have the beast running, and if it needs the second + whatever other gear repairs, is it necessary to drain the fork oil as well when flipping it upside down....ok stop laughing, I know you have to drain the other 3, was just wondering.

[motoman]

nope.......if they leak upside-down...........upright and rebuild......

[ccogswel]

The only things you'll have to worry about leaking is your middle drive and the final drive. The middle drive you can just plug it. But the final drive you will have to drain it and then make sure you refill before you take your first test drive! Good Luck!

[brcree]

2nd gear ???

Hay Old- If I may chime in here..........if you haven't done the job yet.....I have done the flip and then did a eng pull. I had the 2nd gear prob and found that pulling the eng with a friend was easier. We used 4 long heavy screw drivers to hold onto while we pulled it out. Removing the oil pan helped. Hope this helps......

[XS1100_OEM4ME]

Trans?

Do you know, or just think you have a trans problem Unless you just like working on your bike, many trans (including mine) work fine If you dont plan to pull the motor, I would ride it for a season, then decide what NEEDS fixed Could save time and $$$ and if something needs fixed, like the trans, you can still ride all season with some gear bypassing when it slips, and if it works fine, you can save $$ and time

I know this is a tad bit early in my stage of repair, but come spring, after I have the beast running, and if it needs the second + whatever other gear repairs, is it necessary to drain the fork oil as well when flipping it upside down....ok stop laughing, I know you have to drain the other 3, was just wondering.

[jetmechmarty]

OR...What if one performs the "washer move" before the 2nd gear problem shows up?

[XS1100_OEM4ME]

Good point

Good point, that is near free, just time. I didnt know the 2nd gear thing was caused by the 1st gear thing. An OZ of prevention

OR...What if one performs the "washer move" before the 2nd gear problem shows up?

[TopCatGr58]

Hey Lon,

2nd gear has only 3 dogs/slots to mesh with 5th gear, and it is under almost as much stress as 1st gear. 1st gear has 6 dogs/slots to engage with 4th gear, so it can handle the higher leverage/stress loads longer before it wears the edges round, so that's why 2nd seems to fail on folks bike before 1st. But I had 1st fail on mine first, and encountered an XJ that had a 1st so worn that anything over idle would cause it to skip like a machine gun! Once my first started skipping, I used it more gently and shifted into 2nd sooner, but then about a month later my second also started skipping. Estimated 50+K miles were on the engine at the time of failure.

It's been suggested that IF a person has a very low mileage and gently used that performing the washer swap may help the gears make better/deeper dog/slot engagement which could help reduce the occurance, or extend the time/mileage it will take before a possible failure can occur. However, the original gears are square cut, and failure is possible on any OEM engine.

The factory replacement gears are undercut/angle cut which shows that Yamaha learned of the failure tendency of the square cut gears, but they didn't also provide any tech update bulletin regarding the washer swap process!

T.C.