July 18, 201115 yr My lad has a nice rev50 '04 model (4 speed manual clutch), does anyone know whether the 80cc barrel/piston/head is a staight swap? Thanks in advance for any info, G
July 18, 201115 yr The 50and 80 are totally different engines, as far as I know you can't put an 80 on the 50. From memory both engines are KTM so maybe someone who knows more about KTM engines could help.
July 19, 201115 yr The 80 is related to the later five speed fifty but I don't think the 4 speed has any common parts.
July 20, 201115 yr Author The 80 is related to the later five speed fifty but I don't think the 4 speed has any common parts. Thanks chaps!
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