Quote:
Originally Posted by expat42451
Next set device on the front of the block- had never seen anything like it- seems according to the sales guy its some sort of PCV device
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I wouldn't call it a PCV; more like an air pump. It pulses fresh air into the exhaust stream to benefit the cat.
I found that out the hard way. I removed a cat from a scooter without removing the air pump, and was rewarded with a gunshot-like bang from the exhaust. Woke me right up.