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by David Lahey
Mon Mar 30, 2020 9:48 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

Bully fanatic wrote:Well David I just mark some lines where I need it to be trimmed to and give it to my pet rat. He does a fine job every time! :twisted: :P

Is it your place that the rat sausages come from? :shock:
by David Lahey
Mon Mar 30, 2020 1:06 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

I've just spent an hour or so reshaping this genuine :yamaha DT175 swingarm protector so it fits the :yamaha TY250D swingarm. I used an abrasive mounted stone in a high speed pistol drill. Very fiddly work.
The correct :yamaha part is no longer available.
Does anyone do this a different way?
by David Lahey
Sun Mar 29, 2020 9:41 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

Bully fanatic wrote:That is how I`ve been doing it for years too David. I have put Tapered bearings in my three Sherpas now so I can just add some grease and put it together Mush easier!

Ahh that's cheating :wink:
by David Lahey
Sun Mar 29, 2020 7:36 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

Back on the other TY I'm working on. I'm reusing the steering head bearings that were in it when I pulled it apart because there was nothing wrong with them. I've been doing the reassembly like this for many years but am always open to learning about other ways that people do them. First I stick the...
by David Lahey
Sun Mar 29, 2020 7:24 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

Well I had another look in the molasses-filled TY250A tank this evening and it is getting pretty close to being finished. I did the Gary B trick today but using 250 large clouts instead of dog chain and it did a good job knocking off more of the remaining scabs of rust. The photo is how it looked af...
by David Lahey
Thu Mar 26, 2020 4:13 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

I just had a look at how the :yamaha TY250A tank de-rusting was going. Lots of dark sandy-looking oxide came out when I tipped out the molasses and gave it a rinse with water. I reckon about half the surface area inside the tank is now bare grey coloured steel and the rest is still coated with dark ...
by David Lahey
Mon Mar 23, 2020 10:18 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

One thing that came up after I posted the photos about de-rusting fuel tanks was I was asked by someone why their tank formed light rust very quickly after the treatment so for anyone trying this themselves it is very important to use a water dispersant like WD40 as soon as you possibly can after wa...
by David Lahey
Mon Mar 23, 2020 10:08 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

Nice work, I might steal your idea on my TY80 tank. https://drive.google.com/open?id=1ngCJtvshOGUC84cSwXHJJ_u5UyZJogiA Molasses would be a byproduct in your part of the world wouldn't it. How long should you leave it in roughly? Very nice work on the TY80. A couple of weeks max up here in balmy :QL...
by David Lahey
Sun Mar 22, 2020 10:01 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

I like your thinking Kurt. You can usually see bubbles surfacing after a few days. Pretty sure that's what formed the froth in the photo. The molasses came as a liquid from the local feed barn with a viscosity similar to raw honey and I diluted it about 1 molasses to 4 water and kept it in a 20 litr...
by David Lahey
Sun Mar 22, 2020 7:31 pm
Forum: Twinshock & Classic Trials
Topic: Extra home workshop time
Replies: 23
Views: 1605

Re: Extra home workshop time

OK here's a Dr Karl question for everyone about the fuel tank. I filled it to the top yesterday with a mixture of diluted molasses and phosphoric acid and made sure I got all the bubbles out. That's when I took the photos. This afternoon I checked on it and the level had gone down - see today's phot...

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