Swinging arm woes

Been stymied on the DT50 job.

Tried to remove the swinging arm today, to strip and repaint it. It is
utterly seized in position. The main pivot bolt twirls around loosely
enough, but it's evidently seized onto the main sleeve. Heat (lots of)
and an assault wiv an 'ammer have had no effect.

There was a little bit of play in the swinging arm before. There's more
now.

So..... I'll have to cut the bloody thing out with a hacksaw (can't get
The Holy Angle Grinder onto it) and then lob it at an engineer to have
it reamed out, probably new bushes fashioned (I think Yamaha uses those
horrible rubber things, and those will have been utterly destroyed by my
attempts with the blowlamp, so phosphor bronze might be an idea) and a
new swinging arm pivot either bought or made up.

Right - does anyone know anywhere near or in SW London that does this
sort of work?

 

Dunno about doing the work, but i had the same problem with my TS 125, angle
grinder got the bugger out in the end.. hack saw wouldent make a dent..
chromed hardened bolt type thing for the swing arm pivot.

But once the swing arm was off, i placed it in a vice, and using a suitably
sized socket to press on the bearings (not bushes in my case. couple of
needle roller bearings) twatted them with a big hammer, they came out pretty
easily.. the reason mine was really stuck was the bolt had stuck to the
bushings that sit in the bearings.. they're 2 top hat shaped bushes, that
are pushed in from either side,

one set came free eventualy, but the other side is still one piece.. bit of
bolt and the 2 bushes, that's why mine wouldent come out the 'easy' way..
i.e. on the bike.

This just needed a new set of bearings and the top hat shaped bushes.. no
reaming or anything, i ordered the bearings, was trying to salvege the
bushings to keep costs down, and then i picked up a complete swing arm
whihch had had new bearings throughout recently at newark last weekend.. for
a fiver,
Mr suzuki shop wont take the bearings i didnt use back.. so i now have some
spares i'll never use.... unless anyone else is doing the main swing arm
bearings on a ts 125 that is (that bolt is now coming out every year
without fail for a good dollop of grease, something the last owners could
have done but didnt)

Anyhoo, get the bugger off first and see what the dammage is, when the swing
arm is in a vise you can usually get the bearings/bushes to move, as when on
the bike the frame flexes when you hit the bolt, idealy before you cut the
arm up, you want to find a place with a hydraulic press that can take a bike
frame in it's jaws, and try to get the pivot bolt pressed out.. that's
what's usually done with the suzuki's people rekon.

If my Yamaha want's owt like the price of the suzuki bearings and bushes,
then go to an independant bike shop, and ask to have a flick through hte
staniforth catalouge, they sell swing arm repair kits, that comprise of a
couple of nylon type bushings that replace the bearings and all that, £16
for the kit for my bike.. better than the £95 for genuine suzuki parts.. and
i'd have gone that route if i haddent found the swing arm at the auto jumble

 

Just got it out. Did it with a small single-handed hacksaw, and it took
about an hour. Bastard job.

The swinging arm bushes just fell out - they're those horrible neoprene
things and they'd been well toasted by the blowlamp.

Hey-ho. New swingarm pivot and sleeve and a pair of new bushes.
Shouldn't be much.

The shock came off the top mounting as easy as you like, which was nice.
Next stage is to strip the paint off the swinger and re-paint.