HI,
This bike is appently based on the gs850 engine, so there might be some bits there.
Also early on there was a gs400 that had a 4 valve head
I have heard that the cranks are a little fragile, when it comes to eninge mods but OK standard, perhaps that is why they are only 2 valve motors now
other then that I don't know much, except they are considered a good and underrated bike
Sounds like a fun project
This bike is appently based on the gs850 engine, so there might be some bits there.
Also early on there was a gs400 that had a 4 valve head
I have heard that the cranks are a little fragile, when it comes to eninge mods but OK standard, perhaps that is why they are only 2 valve motors now
other then that I don't know much, except they are considered a good and underrated bike
Sounds like a fun project