Posted by huntingreen2day on February 27, 2013 at 21:11:36 from (75.131.120.19):
In Reply to: almost a tractor posted by Bob Bancroft on February 27, 2013 at 09:43:16:
On the flat head Briggs and Staton engines there was a hump on the intake valve that held the valve open until the piston was near TDC. When running at full speed this had little effect on the engine performance. At 3600 RPM the easy Spin duration was like 1/200 of a second. If you don't want Easy Spin just open up the valve clearance enough to get rid of it. Then pull a little harder when you want to crank it. Took it out of a lot of engines when racing go karts. We used to juice them little 5 HP Briggs up and turn 9400 RPM using stock cranks and stock valves.
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Today's Featured Article - It Can't Be Done! - A Tractor Story - by Neil Campbell. I'll never forget the time back when I was a boy baling hay on our Farm in Big Rapid, Michigan. The most memorable event that took place was a trip up the steepest incline on the farm pulling an old New-Idea baler with a pony-motor for power and a haywagon. I had just talked my Dad into buying an old John Deere B with 6-speeds ahead and I was real proud of it, except it was a little smaller than the Case tractor that we normally
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