four valve head

rovert57

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what year did the four valve gs start and how do thy compare with the older two valve models ?
 
1993

They are faster, bigger heavier and more complicated, plus the owner is less likely to smell of wee!

There were a few of the old 2v engines with 4v heads, like the Krauser!
 
You can't compare the two different models.
One is air-cooled with it's design from way back in time which had small upgrades over it's model life, the biggest change came in 1970.

The other is oil cooled, and was a completely different design of bike including frame/suspension/steering/fuel injection etc, every single part is different, even down to the ignition key.

Like comparing a Ford Prefect to a Ford Mondeo.
 


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