A forum for owners of Yamaha TTR250 trail and enduro bikes!

The BushMan · Member

Fitting a lowering link

The BushMan · Member

Here is a picture of what I see from the left hand side of the swinging arm.

Sanderson1777 · Member

put the bolt back in a few turns then hit with hammer and punch take bolt back out then hammer and punch without damaging threads and bearings

The BushMan · Member

Thanks Sanderson I have tried that but maybe I am being to gentle with the hammer. I also put long socket extension bar right through and hit. Better try with more force then, just didn't fancy damaging anything.

JOHNYBOY · Super Guru

i did mine last night remove bolt get a long drift to go inside the sleeve not too thick then brutal force needed as mine was very tight when removed clean up with fine emery tape & copperslip to replace dont forget you have 3 grease nipples to lubricate on fittment job done happy days

Sanderson1777 · Member

does anyone have correct measurement for dropping forks to match the lowering link or does it not matter much

JOHNYBOY · Super Guru

sit on bike & adjust to suit your needs

TTRfan · Super Guru

No hard and fast rule but you may be restricted by the forks hitting the bottom of the bars unless you have risers fitted?

I have a recollection that you can turn the bar supports through 180 degrees and the forks will then clear.

Or you can get an extra 6mm through using a pair of Steve's 6mm spacers.

Brian

The BushMan · Member

Well, one bent drift and 50 or 60 blows with a club hammer and the bolt/sleeve has moved a couple of mm. Not sure this is ever going to come out, it seems to be binding on the flat piece of casting on the bottom in my photo.

TTRfan · Super Guru

Unusual to have one that tight confuse

After starting to move the bush using a drift on the slightly slackened off bolt, I then use a length of threaded (M12 x 1.25) bar screwed into the bush so as not to damage the threads.

Sounds like you might have to replace yours once you have got it out so you might as well order it now - cheap enough - see here

Brian

The BushMan · Member

Thanks Brian, I will be on your shop shortly then. Managed to get it 11mm through now so don't mind if it gets a bit damaged now I know I can get a replacement.

TTRfan · Super Guru

Glad to have helped!

PS It's Steve and Lisa's shop now wink

The BushMan · Member

Ah, yes, I remember now, hope you are enjoying all your extra free time.

TTRfan · Super Guru

Not much free time yet - got one last TTR to build!

Here are a couple of photos to show the threaded (M12 x 1.25) drift I use.

Drifting out link arm bush 1.jpg

Drifting out link arm bush 2.jpg

TTRfan · Super Guru

Sanderson1777 wrote:
does anyone have correct measurement for dropping forks to match the lowering link or does it not matter much

I hope the photo below shows what I mean about the bars restricting how much you can drop the forks through.

On this lowered TTR the 6mm spacers were fitted so I gained that amount.

Forks dropped through.jpg

The BushMan · Member

Finally managed to get the bolt/sleeve out, I had to remove the swinging arm and get it on the bench where I could really give it some stick with a club hammer. Had to use a round file in the swinging arm to get the new bolt/sleeve to go in smoothly. Thanks for all you suggestions guys.

TheTTR250RofEastSussex · Newbie

http://ttr250.activeboard.com/download.spark?ID=1914108&aBID=139305

Swinging arm. Lowering link bolt / sleeve.

Threaded drift 250mm <- ->300mm ✔

. . . Bolt, 10mm or 11mm or 12mm ---> ? ? ?

-- Edited by TheTTR250RofEastSussex on Friday 8th of July 2016 12:53:27 PM

TTRfan · Super Guru

M12 x 1.25

TheTTR250RofEastSussex · Newbie

Glad to have helped.

Falkie · Member

I see that this thread is three years old, but very useful. Glad to see that it is not just me Bushman ! I was belting that bolt yesterday and nothing was moving. I suspect that I will be going down the same route as you and removing the swinging arm completely so as to be able to give it some real welly. Good to know that replacement bolts are available also !

Falkie · Member

Well...got it out this morning. What a job ! Gave it loads of heat and (having read the forum) belted it with a lump hammer and out it came eventually. Quick clean up on wore wheel and good as new. TTRfan - I thought the threads I could see (12mm x 1.25 pitch) were on the swinging arm - never realised they were internal on that bolt...live and learn !!