200? RM 125


12 replies to this topic
  • romano2j

Posted February 26, 2013 - 06:40 PM

#1

I bought a bike said to be 2003. I bought a 2003 service manual which was not cheap. I tore the top end apart tonight and the wiseco piston I ordered, seems to be the wrong one, it is a flat top but the one I removed is a dome.

Can anyone help I have a few pictures my phone number is 484 343 5383 if anyone can text or call I'd appreciate it.ImageUploadedByThumper Talk1361932717.984617.jpg ImageUploadedByThumper Talk1361932744.058577.jpg ImageUploadedByThumper Talk1361932766.242478.jpg ImageUploadedByThumper Talk1361932789.807813.jpg

  • donMX14

Posted February 26, 2013 - 07:01 PM

#2

No pics of the bike?

  • romano2j

Posted February 26, 2013 - 07:09 PM

#3

ImageUploadedByThumper Talk1361934485.032222.jpg ImageUploadedByThumper Talk1361934529.725928.jpg

  • RCN4HIM

Posted February 26, 2013 - 07:56 PM

#4

Pretty sure 125 pistons from 89-03 are all the same... what brand piston is it.. does it fit the bore/con rod? Single ring?

  • Peterrides

Posted February 26, 2013 - 08:02 PM

#5

If you aren't sure of the year go look at the VIN number on the frame. The tenth digit should be a 3 if its a 2003.

  • donMX14

Posted February 27, 2013 - 04:00 AM

#6

Looks like a 02-3 to me. Its not a 01 and its not 04- newer

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  • romano2j

Posted February 27, 2013 - 04:02 AM

#7

@donmx how can you tell so I know?

  • suzook241

Posted February 27, 2013 - 04:32 AM

#8

@donmx how can you tell so I know?



Can tell by the front brake mounting/ routing, air box and swing arm, there are a few other ways as well but those are the quick signs. 10th digit in the vin# should be a 3 if it is a 2003

Edited by suzook241, February 27, 2013 - 04:33 AM.


  • donMX14

Posted February 27, 2013 - 05:34 AM

#9

Can tell by the front brake mounting/ routing, air box and swing arm, there are a few other ways as well but those are the quick signs. 10th digit in the vin# should be a 3 if it is a 2003


Yep. 2001 swingarm was the same size the whole way. 2002-up had a taper-. Front brake hose routing was different 01-03. The fork gaurds on 04-up had a clamp for the brake house. Earlier models didnt. Different suspension on 01-03. Forks were also a different color on the 04-up showa. Alittle more gold color. Thats the quick easy things.

  • romano2j

Posted February 27, 2013 - 05:42 AM

#10

Here's another pic...also I understand the chasis digit for the year says the chasis is an 03 but I'm trying to make sure the motor was not changed at some point ImageUploadedByThumper Talk1361972412.342965.jpg

  • Peterrides

Posted February 27, 2013 - 05:56 AM

#11

What's the engine number?

Edit: never mind, I found it.

Edited by Peterrides, February 27, 2013 - 05:56 AM.


  • romano2j

Posted February 27, 2013 - 05:57 AM

#12

F134-115275

  • stndby

Posted February 27, 2013 - 05:58 AM

#13

Wiseco makes 2 different pistons for this engine. a GP version and a OEM style. I had this problem also. On 1 of the styles I had to drill 2 oil holes for the exhaust bridge. You can run either 1, only lowers the compression by a little.




 
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