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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> forks and yolk removal ??
Post Info TOPIC: forks and yolk removal ??
noeyedear


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forks and yolk removal ??
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Hi all. I am trying to move the front end of my blue ttr. so far I have undone the top yolk and removed it smile now how do I get the bottom yolk out ?? I have given it a ood tap and no movement no, am I missing something ?? or not hitting the wooden block hard enough confuse



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Cubber


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Adrian I take it that you've removed the handlebars and top yoke and the fork legs are held in the bottom yoke which is attached to the steering head. confuse

The steering stem will be seen at the top of the steering head. The stem is held in place by two nuts a washer and a tab washer - Nos 5, 6 and 7 below.

Steering.jpg

Undo the nuts and take off the washer and ball race cover.

The stem, with attached forks and bottom yolk, should now be removable and drop through the steering head. wink

Martyn



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East Budleigh. Devon
noeyedear


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yes martyn have done all that you mentioned, and the bottom yolk won't budge no.  Have sprayed it with penetration oil and will go at it again tomorrow with a larger hammer biggrin and block of wood, unless you can suggest another option ??



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Cubber


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Obviously the stem is stuck in the bearing inner race - rust and mud more than likely. confuse

Liberal dosing of penetrating oil, WD40, diesel, paraffin, etc. ought to persuade it.

Oh - and a 5lb lump hammer with block of wood to protect the threads. dohsmile

Keep the bike well supported off the deck, you don't want it falling over on-top of you.

Good luck



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East Budleigh. Devon
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Steering.jpg



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Cubber


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Adrian, I never asked but I presume you've seen this STICKY that Brian has done on steering head bearing replacement. aww

Martyn



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East Budleigh. Devon
noeyedear


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Yes I have seen that thread, wish I Was at the shell removal stage, but it WILL come out

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noeyedear


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Finally got them separated. Killed 1 soft hammer, and the head only glanced off my frame holding mate lol. Top bearing was full of nice grease, but nothing but crud and rust around the bottom bearing. So will be doing the grease nipple mod. Today's task, remove bearings and look for some grease nipples, drill bit and thread tap.

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Cubber


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Well done, patience and perseverence won the day.

I hope you know where drills, taps and nipples can be bought on a Sunday. confuse

Martyn

 



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East Budleigh. Devon
noeyedear


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Cubber wrote:

Well done, patience and perseverence won the day.

I hope you know where drills, taps and nipples can be bought on a Sunday. 

Martyn

 

 yes Sunday. not a problem, have an old school car spare shop nearby. have finished the mod, but saving info for another thread coming soon wink



-- Edited by noeyedear on Monday 11th of February 2013 11:06:01 AM

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TTRfan


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Well done Adrian - more progress!

Where do you reckon the water/crud came in - from above or below?

Regarding the grease nipple trick, make sure your rubber bung at the top of the yoke is in (yep - been there and made a right mess until I realised where the grease was going!) and you don't push it out with the pressure.

Brian



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noeyedear


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TTRfan wrote:

Well done Adrian - more progress!

Where do you reckon the water/crud came in - from above or below?

Regarding the grease nipple trick, make sure your rubber bung at the top of the yoke is in (yep - been there and made a right mess until I realised where the grease was going!) and you don't push it out with the pressure.

Brian

 oh  yes progress. thinks coming along. I bottombearing was in a bad way. looks like water has got in there, maybe over keen with   pressure wash. and this was such an easy mod,more people should do it... watch this space wink



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