1975 rm 125

[dodgee]

i have a question i have a RM125 m and a RM125 s, i want to take RM125 m back to original i know the barrel is slighty different. it is the head which i have a problem , one head i have has 14 fins on the head and the other has 15 fins does any know which head is theRM 125 m should have.
dodgee

[Doc]

Dodgee, going by the part book diagram and online fiche I count 14 fins on the 125M head

[PERM250]

hi my rm s has 15

[crs-and-rms]

im the same doc my parts book has 14 fins on the m head . it dose have a section for the s model in it but dose not have a parts list  or pic for the head

[cyclegod]

Here's a nice piece for ya dodgee
http://cgi.ebay.com.au/NOS-Suzuki-75-RM125M-Racing-Kit-Cylinder-Piston-Ring_W0QQitemZ140178051847QQihZ004QQcategoryZ88433QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[cyclegod]

Heres one...
http://cgi.ebay.com/ebaymotors/75-Suzuki-RM125-RM-RM125M-head-NEW-NOS_W0QQcmdZViewItemQQcategoryZ35581QQihZ003QQitemZ130173251998QQrdZ1QQsspagenameZWDVW

[Doc]

hmmm..clear as mud but I see the issue now Dodgee..that ebay head is a genuine NOS RM125M head and it has 15 fins. The part book shows 14 and I counted Bills S and it has 15 also..the thot plickens. Zedder lists the ebay head to suit 1 model..the M  parts books are not entirely accurate as I only found out last week but to have a head with 14 fins makes the part book correct also..I'd go 15 going by the ebay item definately being RM125M..or another easy fix..go porcupine