Dear Sandal:
The PIPE Here yet AGAIN-and still eager on those great Conley/Perry "Shaker" pumps!
I have NEVER had a fuel flow related engine stoppage with ANY four stroke engine I've ever flown with-

-since going with the Perry "shaker" pump when I completely converted to four stroke power in 1985-and even though I didn't fly for about 15 years, from 1986 through to 2001, those pumps were just "waiting for me" to get back into the RC hobby again...and they're still doing

a great job!
The volume pumped per engine "shake" can be increased all the way up to a large 3.5 oz (99.2 cm3) of fuel per minute-enough to even feed a HUMONGOUSLY thirsty

four stroke like the Saito FA-180!
I just can't say enough GOOD things

about those great Perry P-20 "shaker" pumps...and the P-22 gasoline ready pumps are supposedly very nice for airshow style smoketrail fluids as well!
Yours Sincerely,
The PIPE!