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Japanese Bikes / Re: CB72 Ignition
« on: May 03, 2009, 06:04:53 AM »
If you took the cylinder head apart you probably put the point cam shaft in 180 degrees off.
Quote
QuoteIt has the type 1 system (two sets of points) but they seam to be open all the time and close to fire the plug? Is this correct?
No, something is definitely wrong there? The spark always occurs as the points open.
I'm just wondering, I think the CB72 has a chain primary drive?
So it may be one of those rare bikes where the crankshaft rotates in the opposite direction to normal, so rotates 'backwards'?
Could you be turning the crank the wrong way?