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I found my GS750 has ~38mm pistons in the front calipers, when the manual says it should be 42,8 mm.
So these calipers seem to come from another model - any idea which?
So these calipers seem to come from another model - any idea which?
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you reading from a genuine Suzuki manual? -
GS calipers came in various types. If you posted up some photos, including some of the pads, that will help us point you in the right direction. Failing that, the OEM parts fishe shows the different calipers, and pads, so you can search out an answer yourself that way. Sounds like you have some later model calipers installed.Last edited by Nessism; 03-02-2019, 02:16 PM.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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@Sharpy, it's the genuine Suzuki workshop manual, see the picture.Last edited by Guest; 03-03-2019, 12:22 PM.Comment
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This picture shows my calipers, they look precisely like the ones in the manual (and various other sources).
The smaller pistons could have been used in the GS 550 or 400 model.
Unfortunately the workshop manuals of these do not mention the piston diameter as for the 750.
GS_calipers_184023.jpgComment
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42.8 mm pistons were fitted in the single disc models and 38 mm pistons in the twin disc models.79 GS1000S
79 GS1000S (another one)
80 GSX750
80 GS550
80 CB650 cafe racer
75 PC50 - the one with OHV and pedals...
75 TS100 - being ridden (suicidally) by my fatherComment
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Cool, thanx.
Makes sense also in terms of hydraulic ratio.
You do not happen to have the part no. of the seal ring (#5 in the sketch)?Comment
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Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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Yes, but the resolution on your pic is a bit too low.Last edited by Guest; 03-03-2019, 06:05 PM.Comment
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Sorry about that. The photo I tried to post came from the OEM parts fishe from Alpha Sports. There are numerous parts fishe hosts such as Partzilla, Parts Outlaw, Alpha Sports, etc., all of which have the same information. Dual disc model 750 is the 750E model so look up the part information for that model.Originally posted by ed56 View PostEd
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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Jordan
1977 Suzuki GS750 (My first bike)
2000 Kawasaki ZRX1100
1973 BMW R75/5Comment
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Ok, that is 69107-05CF0 which supersedes 59107-18410.
Partzilla even shows the size, and it seems to be right: http://ogy.de/gw0q
I'll order this and report again.Comment
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That' s the right one.
By the way, the rear (double piston) caliper has the same rings, so for an overhaul of all calipers one needs four of them.Comment
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