Dual 47 Full Spectrums ??

CarterB

CarterB

X
Location
orlando
These carbs came with a boat and ran fairly well...but im just a surf rider and think they are overkill. I know what they are worth and of very high quality, but just cant quite get them in tune right. I can not get a hold of Ed either at the phone number listed on his site.
Currently they are setup as follows:
122.5 low
132.5 high
18 psi pop off
remote fuel pump
#60 on the retun line
R&D intake mani w/ angle spacer
R&D reed cages w/ carbon reeds
200 psi fresh motor

WHY are these so hard to get in tune? Any help would be great!!!
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Popoff sounds too low.

His duals should run 1.8 N&S, for about 24psi popoff. I think.
You need to talk to Ed.
 
Shonuff

Shonuff

I've got the glow
Site Supporter
Location
Memphis
Ed's carbs shove tons of CFM at full throttle but they are temperamental at partial throttle settings, and this is only my opinion as I have owned and attempted to tune a set, because their partial throttle signal characteristics are poor.

They like to dump fuel, not deliver it.
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Shonuff said:
Ed's carbs shove tons of CFM at full throttle but they are temperamental at partial throttle settings, and this is only my opinion as I have owned and attempted to tune a set, because their partial throttle signal characteristics are poor.

They like to dump fuel, not deliver it.
Click to expand...

That's what I thought the entire two weeks I was trying to tune them on my own.
I finally talked to him, got settings from him, and then they ran 100% from the get-go. Identical jetting on two identical carbs on two very different motors.
 
CarterB

CarterB

X
Location
orlando
hmmm...weird. i cant get a hold of ed. i talked with paul lehr and he said all my settings and 18 psi pop off was perfect. i think i got a prob with the fuel pump. ill try that and see
 
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