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New to me 2000 YZ125

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This one from old yz250 i hit qaud head on after landing jump bent the shaft but not hammerhead shifter lol . Was much worse that how strait had to be to come out without fing it up
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Mine is about a light year away from being that straight.
Coincidentally there is a Hammerhead shift lever on this bike too.
Me thinks I’d rather have a more flexible shift lever than one that is so rigid it transfers all the force into the shaft.
Easier to replace a shifter that the shaft.
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This one from old yz250 i hit qaud head on after landing jump bent the shaft but not hammerhead shifter lol . Was much worse that how strait had to be to come out without fing it up
20180616_204446.thumb.jpg.36652f1df759232b52087e06658cbffb.jpg

Oh yeah, how did you straighten it? With a hand sledge or press?

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1 minute ago, DavidR8 said:


Mine is about a light year away from being that straight.
Coincidentally there is a Hammerhead shift lever on this bike too.
Me thinks I’d rather have a more flexible shift lever than one that is so rigid it transfers all the force into the shaft.
Easier to replace a shifter that the shaft.

Exactly but man they are tough lol . I thought same thing havnt had one since just get oem ones again

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1 minute ago, Kinger317 said:


Oh yeah, how did you straighten it? With a hand sledge or press?

2lbs 🔨🔨🔨 😀 . Pop seal out heat with map gas torch first tho 

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Today’s update:

Spent the majority of the morning wrenching on our chipper. New carb, new head gasket decarborn the head and remove and sharpen the blades. Seemed to involve about 50 nuts and bolts to get that done. Crickey!

 

To the bike.

I drained the crankcase , turned the engine over and stuck the shift shaft in my bench vise.

Gave it a mighty heave-ho and managed to straighten the shaft a bit. Enough to get the seal out.

Interestingly the wrist pin fits neatly over the shaft but I lack anything that will go over that.

 

So I think it’s going to get cut off and deburred to get it off.

 

Took the clutch cover off and plates out. The fiber plates look good, the metal ones not so good.

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Is there anyway to hold the clutch basket other that the special tool?

Edit: found a way to make the tool

 

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Impact wrenches.
Yay or nay?
Are they appropriate to loosen big fasteners?

I don’t own one as I have a 24” breaker bar that’s undone VW axle nuts torqued to 75 ft/lbs.

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38 minutes ago, DavidR8 said:

Impact wrenches.
Yay or nay?
Are they appropriate to loosen big fasteners?

I don’t own one as I have a 24” breaker bar that’s undone VW axle nuts torqued to 75 ft/lbs.

Yay.

I have two, an air 1/2in and an electric 1/2in.and an impact driver you hit with a hammer and it shocks things loose. The electric one is slow and cumbersome, but it's gotten some extremely tight stuff undone at times. I use it maybe 1 time every year. The air one is really useful for breaking down bikes. They speed up your pace of work heaps.

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7 hours ago, DavidR8 said:

Impact wrenches.
Yay or nay?
Are they appropriate to loosen big fasteners?

I don’t own one as I have a 24” breaker bar that’s undone VW axle nuts torqued to 75 ft/lbs.

Yay for removal

Nay for installation, on dirtbikes

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2 hours ago, owainyz03 said:

Yay for removal

Nay for installation, on dirtbikes

Exactly! 

10 hours ago, DavidR8 said:

Impact wrenches.
Yay or nay?
Are they appropriate to loosen big fasteners?

I don’t own one as I have a 24” breaker bar that’s undone VW axle nuts torqued to 75 ft/lbs.

Mans best friend. Just always remember thread direction. Good thing everything on a YZ is righty tighty, lefty loosy. Only op is inside and part of flywheel, tool for removal. 

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Thanks all!
I’ve got a flywheel wheel puller on its way.

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Today’s update:

I took the day off to run errands etc. Had a sweltering ride about town in 30 degree temps. Ugh.

 

Picked up an air impact wrench. Oh baby where have you been all my life?

Clutch hub nut off in a jiffy!

(David scouts the garage for other potential victims!)

 

Managed to beat the shift shaft almost straight on the outside. Has two mis-strikes:

One on the case: IMG_0885.thumb.JPG.c99e965ebbce26e59beb938ee09a4a9f.JPG

 

The other bent one of the counter shaft sprocket cover mounting bolts.

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Thankfully there was no third strike or I’d have struck out.

 

I hope I haven’t ruined that case half.

 

In other news, when I took off the clutch cover I discovered this short 8 mm bolt with a copper washer. It’s not the water pump drain. Any idea where it belongs?

I’m being hyper vigilant about putting fasteners back in their homes so I’m a bit stumped.

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Judging by the amount of Yamabond oozing out of the case joint I’m leery about any work done on this bike.
Mind you the case bolts were awfully tight so who knows.

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4 minutes ago, DavidR8 said:

Judging by the amount of Yamabond oozing out of the case joint I’m leery about any work done on this bike.
Mind you the case bolts were awfully tight so who knows.

Sometimes its not even yamabond

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I was hoping to get away without having to buy/make a case splitter but I see one in my future.

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There are 2 bolts on the clutch cover. One is the dribble hole, and the other keeps the clutch rod in place. That one looks like the dribble hole front and center. 

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Thanks Doc!
What pray tell dribbles from this “dribble hole”???

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1 minute ago, DavidR8 said:

Thanks Doc!
What pray tell dribbles from this “dribble hole”???

It’s the oil level in the case. Not in the correct location anyway. Plug it, forget about it, and always drain the oil, crash bike left and right, install drain plug and fill with a measured amount of 650ml

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