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~ Chilpter 3 Fuel and exhaust systems 
~5 4513 ,111<1 "'f hose s 2550A D",conneclinu the maUl "" supply t.unkul!! 1.011 the 1111~hue cont.ol 111111 25501l mid th'OI1I C houslIlU 
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25 53A UnsCII)w the holts. 255311 ,,,"U)IIC the ~'" chal11bcr ~5 53C ;11111 'cmoY(: the Haskct 
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25 5 4A UlIsc'ew the 11101l1lt;IIU bolts. 2554 U ,lIld remove the UIIL'CtOrs 2556 The "'Jecto, Q·rinU seal (a"owed) 
56 Rcl,llll.g IS 11 reve rsal 01 rcmoval. hut mtlke SUiO Iha l til..,  "l)OC Iors .IIC clea n and III new O'lIng seals (pholo). Also rencw the;IU chamber gtlskel. 
26 I( H o mixture -adjustment 
Noto: 11!e miJllllfe s"/liIl9 is preset during (!for/actiOIl of II", eM ,'nd shOll1ll 1101 "ofllwll~ require "djIISlment. If I!~'W r:QfIIl'O"Cllf.~ l)f 'he sys({)m ""VI! bccn flllCd.  IlOwever. tile mix/IIII! (;,1/1 be mi,l/steil as lollows "Silly /II) cxlwlls/  y,l$  
Slandard equlplllcnt) III  iI(;COnlDncc with tIn: nH!llul;I(;WH"'s 111-SIIUCllons 
3 Incroase the enyulC speed 10 3000 'pm and hold it the,e 10' 30 seconds to Sl
Idle  speed . 
5 Break oft the lalllpl:q)lOol  cap 110111 the mj~ture conlrol screw on lap 01 Ihe fuel uistllbulOi. 6 S tabilise the cxhausl Ua ses  as dcscllhc·d ,n paragraph 3. 7 In sert 11 3 r1\I AUcn  key onto Ihe heau 01 the mixture SCfew and tum the SCfew urlld the COlfeCI  CO re
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