pressing out steering stem to fit to zxr 400 yolk

[dangerousal]

Hi Guys,

I have finally got around to starting my build...the front end will be a zxr 400 usd conversion and I am looking for information on what is involved in pressing the steering stem out of the ypvs triple tree.

I know the stem is welded to the yolk, but i am wondering how much material needs to be removed from the underside of the yolk to clear the weld...

Alternativelty does anyone have a pressed out stem the want to sell, or is able to do it for me, I'm in Poole Dorset.

[dllc]

a little bit more to it than what you think. as well as changing the stem you will need a spacer to go between the top of the stem and the zxr top yoke, Nigel in NK racing did mine for me.

[dangerousal]

Sure I am aware of the spacer.....do you know if the stems are the same diameter...how much did nk charge?

[dllc]

pv stem is narrower. hence the need for spacer for top yoke. cant remember how much it cost. was getting a few bits modded at the time.

[jon]

Sounds like a simple top hat spacer to reduce the diameter. Shouldn't be more than £25 I'd have guessed?

Jon

[dangerousal]

removed stem from ypvs yolk, and machined down slightly, machine out zxr stem bore slightly to fit ypvs stem, parted off zxr stem above the yolk and milled down flush, pressed ypvs stem into zxr stem bore, and will weld ypvs stem to zxr stem....made top hat spacer for top yolk, new ball race bearings fitted, modded zxr yolk to extend lock stops to engage with ypvs stop tab on frame...anyone see any issues with this approach?

[Kryten]

Can you post a few pics of the top hat spacer and top yoke,i dont have this fitted on my conversion. Im a little puzzled as i dont need one fitting.

[dangerousal]

Top hat spacer I made Is essentially a Bush to increase the diameter of the ypvs steering stem to fit the diameter of the zxr top yolk..