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 Post subject: Re: GT250 Cafe project
PostPosted: Fri Aug 23, 2019 7:35 am 
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On the street

Joined: Tue Nov 06, 2018 5:58 am
Posts: 25
Country: Australia
Bikes owned: 1974 GT250L, DR650, Honda CRF1000
For the 74 GT250L that I am currently riding am having nothing but trouble with the front brakes squealing. Have cleaned everything, tried different pads, scuffed up the disc - even tried another 2nd hand disc that I had.

In desperation I decided to get the disc ground.

Tried a few different brake places and none of there machines would take the Suzuki disc. Found one friendly workshop that let me measure up their machine so that I could turn up an arbor.

http://www.a1brakes.com.au/" onclick="window.open(this.href);return false;

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Even tested the new sand blaster on the hub. Like new!

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He had a bit of trouble with the disc chattering but the finish should be OK - and at least I now know its flat and true! When I fix the other issues on the bike I will report on the success.


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 Post subject: Re: GT250 Cafe project
PostPosted: Sat Aug 24, 2019 3:57 pm 
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Expert racer

Joined: Wed Jul 10, 2013 12:04 pm
Posts: 1025
Country: England, UK
Bikes owned: FZ50, GP100, RG125 Gamma, GT380, Bandit 1200S
Cool! Hope it sounds better.


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 Post subject: Re: GT250 Cafe project
PostPosted: Thu Sep 12, 2019 9:12 am 
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On the street

Joined: Tue Nov 06, 2018 5:58 am
Posts: 25
Country: Australia
Bikes owned: 1974 GT250L, DR650, Honda CRF1000
Circumstances are forcing me into a change of direction for this project.

My GT250L 1974 bike that I’ve been riding around looks like it’s done a crank seal.

Some time ago, was walking through the shed and noticed the smell of petrol, was in a rush so quickly forgot about it. A few days later I was cleaning up to go back to work (go to sea for 4 weeks at a time) and found petrol dripping from the exhaust.

DAM – I forgot to turn off the petcock!

Early GT250’s don’t have an overflow on the carburetors – fills the pots when the needle and seat leak. Short of time I pulled the plugs, slowly turned it over on the kick starter, blew it out with compressed air and squirted some oil down the bore. Got home the other week and fired it up.

Bit of smoke out the left pipe…………….”it will clear when it gets hot” I said to myself.
Rode to the local shops – still plenty of smoke from the left pipe – white smoke!
Had another grand thought – “take it out on the highway and get it properly hot – that will clear the exhaust!”
Well……….……there isn’t an exit for about 5km’s. I attempted to disappear inside my helmet from embarrassment due to the now epic smoke trail that followed me……..and then I had to do it again for another 5km’s to get home.

I suspect that the residual petrol that was sitting in the crank for the month damaged the crank seal. The center crank bearing is lubricated from the gearbox, oil level in the gearbox dropped on the small but hazy test run.

So with the rego due and the fact that I was never really happy with the restoration that was done by the previous owner, it is now parked.

So the Suzuki GT250B 1976 that I’ve been playing is now going to be a nut and bolt restoration to appease the rivet counters and the GT250L 1974 will be the Café Racer. Another contributing factor in this decision is that as ADR’s (Australian Design Rules) didn’t come into affect on motorcycles until 1975, so there might afford a few more liberties 74 that I couldn’t on the 76.

So the café project will take a little longer than originally intended – will do the resto first.


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 Post subject: Re: GT250 Cafe project
PostPosted: Wed Oct 09, 2019 6:58 am 
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On the street

Joined: Tue Nov 06, 2018 5:58 am
Posts: 25
Country: Australia
Bikes owned: 1974 GT250L, DR650, Honda CRF1000
So with the demise of the road going bike and this now turning into a two bike resto/Cake project, I didn't want have my bike lift permanently filled up with 70's 2 Strokes, so an alternate work bench is needed - getting too old to be working off the floor.

Left over from some house reno's (new stairs and landing) I had a length of 75x75x4mm RHS. For a bike work bench it is absolute overkill but I can't see myself having another use for it in the foreseeable future - best use it rather than constantly tripping over it.

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Bunnings (local hardware warehouse for those not in Australia) had sheets of 2150x600x30mm Soft wood pine ply for $65, add some Heavy duty 100mm Casters and 20mm leveling feet from eBay, I will be all finished for under $200.

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Since the new bench is of such heavy construction I may in the future turn it into a welding/fabrication bench - will just need to find a suitable top.
My current welding bench that I made several years ago (DIY Stronghand tools copy), although extremely useful is limited to smaller jobs as its only 1050x600mm.

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 Post subject: Re: GT250 Cafe project
PostPosted: Sat Oct 12, 2019 5:39 am 
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On the street

Joined: Tue Nov 06, 2018 5:58 am
Posts: 25
Country: Australia
Bikes owned: 1974 GT250L, DR650, Honda CRF1000
New work bench finished - completely over-engineered but happy with the result!

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Even Little Miss approves!


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 Post subject: Re: GT250 Cafe project
PostPosted: Wed Oct 16, 2019 11:43 pm 
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On the street

Joined: Tue Nov 06, 2018 5:58 am
Posts: 25
Country: Australia
Bikes owned: 1974 GT250L, DR650, Honda CRF1000
Fork legs back form Rad Hard Chroming https://www.radhardchroming.com.au/, won't say that it was cheap at $420 AUD (straighten and rechrome) but perfect job.
In comparison the new pattern fork legs that I bought for by GT250 74L were about the same after shipping - in chatting with the bloke at Rad, his reply was that his chrome will be thicker and last longer - as I can't see either bike doing 1000's and 1000's of kms and definitely not parked in the weather so I don't think it really matters.

So that took me back to my favourite job - polishing - MORE MESS!!!!!!

I thought that I would try Walnut Shells in my blast cabinet - didn't work so well continually blocking the syphon tube - tried different air pressures and nozzle sizes but nothing seemed to work. Looking on line at different sites and was thinking of fitting a metering valve in place of the syphon tube gun.......so for the interim I used glass beads. As a prep to polishing, it took out a lot of the hard work, removed the factory lacquer and cleaned all the impossible corners.

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