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2000 20 hp Mercury will not run at full throttle unless primer is pulled all the way out Idles ok but also stalls during acceleration Any ideas

R

R. E. Rilee

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" 2000 20 hp Mercury will not

" 2000 20 hp Mercury will not run at full throttle unless "primer " is pulled all the way out. Idles ok, but also stalls during acceleration. Any ideas? How do you access the high speed mixture jet? Is it a fixed jet? Thanks "
 
" I believe that has adjustmen

" I believe that has adjustment only on the low speed jet. Usually hesitation on accleration is a clogged low speed jet, using the choke would allow it to run richer and get you through that hesitation. It's (the carb) probably clogged from varnish and needs a rebuild/cleaning, but you could try richening it by taking the low speed adjustment out 1/8-1/4 turn and see how it goes. Best bet, get a kit, rebuild and then tune though, 1 carb is easy enough.

Jon "
 
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