Author Topic: GS500 Classic Trials Project  (Read 20641 times)

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Offline Stephen Bailey

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Re: GS500 Classic Trials Project
« Reply #90 on: April 30, 2020, 03:36:40 pm »
Why did you not spray paint it?
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Offline Jason Potts

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Re: GS500 Classic Trials Project
« Reply #91 on: April 30, 2020, 04:52:21 pm »
The stuff I used came recommended by the local steam railway enthusiasts. They were painting steam engines with it. It goes on thick and sort of self levelled a bit. It was pretty quick drying. I got it off eBay from a company in Ireland. They said it was cellulose based and was mixed specifically for bush painting. I went for this paint because it was petrol proof and I was using it on the tank. This was the stuff, see link below.

https://www.ebay.co.uk/itm/Cellulose-Car-Body-Paint-Steel-Wood-Metal-Gloss-Matt-respray-Military-Army/350935190159?_trkparms=ispr=1&hash=item51b55e0a8f:m:mgrHN3ImF9jZzzdVxomYCEA&enc=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&checksum=35093519015903a6f00ced5a48d2b4a440ac945bb76f&redirect=mobile


Offline Stephen Bailey

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Re: GS500 Classic Trials Project
« Reply #92 on: April 30, 2020, 09:45:16 pm »
Yep I use cellulose. I have a good stock of spray cans in primer and black. Also some tins and a spray gun.

Yes cellulose is petrol proof. I would give the petrol tank a couple of spray coats of cellulose clear lacquer to finish and to go over any transfers.

I was recommended Valspar paint many years ago (probably about 1970). and hand painted a BSA B25 and couple of Norton Atlases Petrol tanks in white and that was OK.  :)
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Offline Stephen Bailey

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Re: GS500 Classic Trials Project
« Reply #93 on: November 02, 2020, 05:43:50 pm »
Any more updates?
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Offline Paul K

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Re: GS500 Classic Trials Project
« Reply #94 on: November 03, 2020, 08:21:08 am »
Yes; a few changes.  I've modified the silencer again with a redesigned mute/packing in the rear cone.  The previous mute/packing made the silencer too long.

The engine starts and runs, but the two Mikuni carburettors need rejetting.   The K&N lunchbox filter leans the mixture and lord knows what effect the exhaust system is having.  So current position is that the engine will start and run on full choke, but any slight opening of the throttle will kill the engine :(.

So the plan is to recheck the float heights, open the pilot screws 3 turns (2.25 from factory), raise the needles one notch and fit 140 main jets (120 from factory).  I can also play about with the number of discs installed in the Supertrapp silencer.  So now waiting for the jets to arrive.  Once the engine is running reasonably, I can get the MoT done.

Offline Stephen Bailey

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Re: GS500 Classic Trials Project
« Reply #95 on: November 03, 2020, 12:34:16 pm »
That sounds good.....  :)

Are you planning on entering the Exeter in January?
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Offline Stephen Bailey

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Re: GS500 Classic Trials Project
« Reply #96 on: November 03, 2020, 12:37:02 pm »
The engine starts and runs, but the two Mikuni carburettors need rejetting.   The K&N lunchbox filter leans the mixture and lord knows what effect the exhaust system is having.  So current position is that the engine will start and run on full choke, but any slight opening of the throttle will kill the engine.

Even a slight opening?

Are the jets clear?

That must be running way too lean.....
Posts by myself are personal posts and in no way are an official expression of the MCC. or the MCC Committee.

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