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Old 12-09-2009, 03:30 PM
K.i.p's Avatar
K.i.p K.i.p is offline
Motorized Bicycle Elite Member
Join Date: Nov 2009
Location: CNY
Posts: 340
Default Re: Do slant heads really make a difference in power?

Took a close look at my generic "Pizhou Yongxing Gasoline Engine Factory" 80cc today. Although it has the slant head the piston does not rise above the jug at TDC. Also the piston has a flat top with the number "two" stamped but no arrow. It would seem there are destinctions between the PK-80 (also "Pizhou Yongxing Gasoline Engine Factory" ) and my less expensive generic. I just thought I would add to the data base.

Below: the bottom of my head after dremel and polish work. Also a couple pics of the motor straight from the box.
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File Type: jpg bike parts_12_02_09.jpg (137.5 KB, 113 views)
File Type: jpg bike_parts_b10_6_09.jpg (220.3 KB, 117 views)
File Type: jpg bike_parts10_6_09.jpg (214.3 KB, 114 views)
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