Suzuki GSXR-1100 1990 - Page 109

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FUEL ANO LUBRICA TIO N SV S l"EM 4-6
DI APHRAGM AN O PISTON OPERATION
Th e ca rbur et or Is ;:, vadab le•vP.ntun typ e. who-:.~ vc otod c,oss se c ti on area is ln cfea Md or decreu sad
;J uto,n at ica ll y by th e piston valv u (1, whi ch mov~s ;ic:c:or di ng to th e , ,e 9at i vP, pr ess ur e pr a scnt on th e
r1ownstraam side of t hu vl}nl1.1fi S•, NegRt ivP. pres sum is a<lr'n itt e ct int o the di aphr ao rn c ha mher (2: · t hrou gh
tw o ofl f ices ·J ', orov i ded in th e pist on v.:i lve ~f'
f'ii:;iug u onali ve 1> ress ur~ ovP. r comes th a s JJ d1 \{ 1 •':t. fo,ce, ca us in g tha µ, sto n valve : 1: 10 ri se tu iucrea se
thP. sa id area .i nd th w; 11 r~veo1 1h ~ A ir vP. l ocity trom h,cwt,si n~J Thus, a ir ve lo city i,, th e ve nturi passage
is 1<.0IJl ff.da tiv (!ly com:,tAnt to e im pro vult fuel a1o rni 1 ,1 uion and tor sucu r 'ing o p1imum rnt io of fue l /a i, ,nixt,u-P..
~ /\IEG. AT U/ F PRESSURE
A,IR F LO\N
~ NEGA T IV E PR F.SSU RE