RM125A piston

[bigk]

Can anyone out there in Sushi land tell me who can supply pistons or what the alternatives are for RM125A. I need a 1.5mm OS (57.5mm).
Cheers,
K

[VMX Andrew]

try serco ...they sell a wide range of oversize pistons that covers all jap bikes....

[oldfart]

wiseco    list    125  DS   1979-81
                     125  TS   1979-81
                     125  TC   1970-78
                                                  All having a 56 mm Bore X 50mm Stroke

     56 std     449M05600           $108-00      as below
     56.5        449M05650 
     57          449M05700
     57.5        449M05750
     58           449M05800         $118-00     price includes  piston-rings -wrist pin and circlips
               

[090]

Trailbikes of the same era might have more oversizes and may be the same shape. I did this on a TM125. I used something like a tc? 125.

[bigk]

Tried Serco and the TC/TS thing, don't fit. They list RM125B onwards but no A model. Tried Pro-X,not listed either, tried a CR125 Elsinore piston, very close but different pin size. Someone who is into Suuki's must know the secret.
Cheers,
K

[Lozza]

RM's were one of the first to go to the superior 54 X 54mm bore and stroke, to be a 56 X 50mm bore/stroke you probably have a 14mm pin. ProX has TS125 piston up to 58.50 in 0.25mm step and KE 125's have similar the TS has higher compression height and dome.

[LWC82PE]

try BB importers/bikes and bits importers in WA they can fax you a diagram for you to fill in dimensions and they will try match it up to a piston from their huge stock. i dont have their phone number right now but i could find it for you. they used to advertise in VMX magazine.

[TM BILL]

RM 125A pistons were a one off 56mm std & 16mm gudgeon pin  there are usually loads on ebay because they only fit the RM 125 A 

[oldfart]

 Not too sure on if this will work
       
Yz 125 1976-82      56mm-std      58 mm max          16mm pin   

[bigk]

Thanks all, I'll let you know how I go.
Cheers,
K

[Lozza]

YZ's being reed induction probably have a window or a large cut away in the rear skirt.If it has a 16mm pin and you can't find a piston the you can always  swap the rod for one with a 14mm pin.

[Tim754]

Big K , I got the Suzi parts book here for Rm125 models  M, S ,A and B if you want to borrow. Tim754 (Elmore)  PM if you do. Cheers.

[Oldrodder]

Try this web site

http://www.pistons-online.com

[cyclegod]

This may interest you...

http://cgi.ebay.com/ebaymotors/Suzuki-RM125-nos-cylinder-set-1976_W0QQcmdZViewItemQQcategoryZ35581QQihZ007QQitemZ170185444473QQrdZ1QQsspagenameZWDVW

[bigk]

Almost got it soughted, just need to check a few measurements. Will post the results as soon as I confirm it will work.
Cheers,
K