Tomway1989 wrote:
1989 sundowner 5.0 ford Holley carb Just rebuilt and adjusted at a dealer.
dies when trying to go full throttle
Any ideas? Possible carb adjustment on high speed jets?
Sound like the dealer needs to make this right for you.
There is no adjustment that I know of for the high speed jets (other than replacing the jets with a different orifice diameter).
If it hesitates or stalls when you hit the throttle fast, then it would be the accelerator pump. However, the accelerator pump is not necessary if you gradually speed up to full throttle. I don't think you were describing the accelerator pump problem, but I will mention that many carb rebuild kits come with the wrong accelerator pump...the black ones are not ethanol proof...the green (silicone) ones are.
Other sources of fuel starvation could also be suspect:
. fuel pump
. fuel filter
. fuel inlet screen at carb
. carb float bowl adjustment
. anti-siphon valve at fuel tank
_________________
"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings
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