pumped k&b 60 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 05-25-2004, 09:20 PM   #1
mark e o
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pumped k&b 60

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i have aquired a k&b .60 2 stroke with a back plate pump and the perry carb for pumped engines, my question is does anybody know roughly the setting of what i am assuming is a regulator screw on the back of the pump. there seems to be an abundance of fuel running out of the front bearing area. any info would be great


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Old 05-26-2004, 06:17 AM   #2
Ed Smith

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I cannot help you with the pump. Do not worry about fuel coming out of the front bearing. That's a good thing. There is enough pressure build-up in the crankcase to push fuel through the front bearing, thus the front bearing receives good lubrication. Fuel leaking from the front is not the sign of a bad bearing. Other symptons will tell you that.

Ed S
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Old 05-30-2004, 09:13 AM   #3
Waco Driver
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From the closed position, open main needle valve 2 1/2 turns. Start engine and open throttle wide. It should be very rich. If not screw in regulator screw on pump until it is very rich. Turn in main needle until engine is set just rich of peak RPM. Go to 1/2 throttle and engine should be slightly rich. If necessary adjust regulator screw on pump until it is. Set idle mixture disc on side of carb for a good idle and acceleration.

Assuming your engine is positioned upright, open throttle wide with engine running and invert engine. if engine goes rich, back out inverted mixture screw 1/4 turn at a time until mixture is correct. This is the small screw on top LH side of carb top surface. That's it. Use a filter between pump and carb.

If you wish a copy of the pump and carb instructions I can scan and send them if you send me your email address.
MAAC 6273L
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Old 06-01-2004, 10:49 AM   #4
mark e o
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thanks for the info guys i will give all sugg. a try a see if it helps slow down the leakage again thanks

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