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Engine Swap with older model

150 Views 1 Reply 2 Participants Last post by  NorthCust
Will a 2006 r125 engine fit in an '09 bike?

It's been a mission trying to find complete r125 engines.
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afaik the R125 started in 2008 (mine is the first year) so finding an 06 is likely to be either mis-labelled or something else altogether.

Any gen1 engine (2008-2013) ought to fit in any gen1 bike. Gen 2 (2014-2016 and 2016-2018) have some subtle differences which can be made to work but are definitely not a straight swap.
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