Kawi2strokes.com Forum

When did the bridged inlet port barrels on the 500 H1 get replaced with the open port? Were they bridged because inlets were wider

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'You don't stop riding because your getting old, you get old because you stop riding'

71 Kawasaki H1A
2005 MV Agusta 1000s
1990 TZ 250A (Reverse Cylinder)
1996 RS 250R Honda
1996 RS 250 Aprilia

Rumor has it that all 69's had bridgeport cylinders and some early 70's.

They were reportedly discontinued because Kawasaki could get the port width or performance they wanted without the complication of an additional failure point.

Did you see this page(PDF) on Mraxl's resource site?
http://kawtriple.com/mraxl/portmaph1stk.pdf

From here;
http://kawtriple.com/mraxl/portinginfo.html

That's very interesting thanx for that info, that's sort of what I thought.

_________________
'You don't stop riding because your getting old, you get old because you stop riding'

71 Kawasaki H1A
2005 MV Agusta 1000s
1990 TZ 250A (Reverse Cylinder)
1996 RS 250R Honda
1996 RS 250 Aprilia