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Water Warrior 2 · 09-05-2008, 12:48 AM

If I remember correctly there are only 2 rocker arms but each one operates 2 valves. 2 intake valves and 2 exhaust valves. That is the reason for the 2 exhaust pipes coming off the head. Some people think the GZ is a vertical twin cylinder bike because of the 2 pipes.

09-05-2008, 12:48 AM	#4
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Re: Confused about number of valves... If I remember correctly there are only 2 rocker arms but each one operates 2 valves. 2 intake valves and 2 exhaust valves. That is the reason for the 2 exhaust pipes coming off the head. Some people think the GZ is a vertical twin cylinder bike because of the 2 pipes.
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