by samandkimberly » Sat Jun 02, 2012 7:53 am
Some people have all the luck. Not necessarily the good luck.
Sdbct1 brought his MZ Baghira over to my house for a look-see last night, along with a 12 of beer (thanks!), and we went thought the usual check spark, check fuel...noticing that the motor did not appear to have a lot of compression. With the air filter off I noticed air coming back through one of the carbs...and so decided to check the valves.
With the tank off we saw a very obvious problem: a hole through the top of the valve cover with *half* of the compression release sitting on top! So, at a minimum, bent cam, pulley, valve cover, and whatever collateral damage there might be from the bits of compressing release. Harsh, seeing as he just bought the bike (from me) a few weeks ago.
Hard to say for certain, but it looks like the compression release exploded. I know Bill has inferred that the auto compression releases are not reliable at high rpm, but has anyone seen failures of these in low mileage (2,500) stock motors?
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