I was kidding myself hoping that I could save the original piston from my calipers by cleaning it up and trying to polish out the pits. I see the light now, and I'm ready to just get a new piston before I destroy seals and have brake fluid everywhere...
I know the Tokico piston will fit the ASCO caliper - yay. Here's my concern. If I search eBay, I'm getting results which show kits that apparently fitt everything. PERhasp all the right parts are there to fit both flavors of caliper, but I don't want to waste $70 just find out I need more... Or worse yet that the piston doesn't actually fit!
Here's what I'm looking at: http://www.ebay.com/itm/Genuine-Suzuki- ... 1057817963
Anyone have any experince with this? Will it fit the ASCO caliper? I'm probably just being paranoid, but I really do hate to throw money in the garbage...
77 GT500 with ASCO Calipers - Piston (Kit)
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speedfreak
- Around the block
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- Suzuki 2-Strokes: GT500
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Coyote
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- Suzuki 2-Strokes: GT550x2, GT750, GS1000
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Re: 77 GT500 with ASCO Calipers - Piston (Kit)
That's a tough one. The 2 calipers LOOK identical on the fiches, but I'm betting they are not the same. The pistons don't have a part number, but the seals do.
They are markedly different 59107-34020 vs. 59107-18410. That alone suggests the piston diameters are different.
Go to Partzilla.com or Alpha Sports and compare the 2 different calipers shown for the 77. I see that one uses a large hex bolt and the other does not. You should be able to tell them apart by that. If you are lucky, the pad set is only $55.41 at Partzilla. If you need the other one, the pad / piston set is obsolete.
They are markedly different 59107-34020 vs. 59107-18410. That alone suggests the piston diameters are different.
Go to Partzilla.com or Alpha Sports and compare the 2 different calipers shown for the 77. I see that one uses a large hex bolt and the other does not. You should be able to tell them apart by that. If you are lucky, the pad set is only $55.41 at Partzilla. If you need the other one, the pad / piston set is obsolete.
I was born with nothing and still have most of it left.
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1978 GS1000C
1976 GT550 ongoing money pit.
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1978 GS1000C
1976 GT550 ongoing money pit.
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Coyote
- Moto GP
- Posts: 3404
- Joined: Tue Oct 21, 2008 2:41 pm
- Country: USA
- Suzuki 2-Strokes: GT550x2, GT750, GS1000
- Location: Tulsa, Oklahoma
Re: 77 GT500 with ASCO Calipers - Piston (Kit)
OOPS! Those hex bolts are the mounting bolts 
I was born with nothing and still have most of it left.
.
1978 GS1000C
1976 GT550 ongoing money pit.
.
1978 GS1000C
1976 GT550 ongoing money pit.
-
speedfreak
- Around the block
- Posts: 61
- Joined: Mon Jul 23, 2012 12:30 pm
- Country: Canada
- Suzuki 2-Strokes: GT500
Re: 77 GT500 with ASCO Calipers - Piston (Kit)
Ahhh - if only it were that simple. What I have on mine is basically the ASCO calipers from the GT550. Aparently they used them on some of the last GT500s off the line. Hence the probalem that they don't show up on any fiche - I litterally have to pull up the GT550 fiche to see my calipers.
The problem is that the only kits with a piston that I can find apparently cover all those models. Which seems unlikely to me - but maybe I'm just being paranoid...
The problem is that the only kits with a piston that I can find apparently cover all those models. Which seems unlikely to me - but maybe I'm just being paranoid...
