every Spark HE perfect performance °f your tractor during S// hints ’ x harvest depends on the. ■'IT tkSStoxs development of the full ' (2) The Spark ' P° im P uISC ffOm eVer Y ; , Always drive your tractor with the v * J This requirement is adequiW countered, it may be necessary to , 1 1 i 1 Ar' retard a little to obviate knocking, z cl tely met by the complete 'U , but under all ordinary circumstan- 7. . . f Pt' ces a full advanced spark gives the VCtpOLltlSclt IOFI OI CxInCjSS, Y most satisfactory and economical 4 1 • 1 1 ’ rcsults ) which ensures that ignition A A retarded spark means poor power ‘‘7’ 1 /" 1 . 1 and an overheated motor. Very // anCl pCIdCCt COmbUStIOU take r®" often when the engine is carboned /> 1 • 1 1 Ai up the tractor owner drives on a I place with every spark. A retarded spark to stop knocking; y, this is bad practice Do not drive Az mV. on a retarded spark: remove rhe ] I carbon X I (A Other Hints tc follow Af / -Al WwMMHMQHitIBi'--jWi 1 ' 1 * 1 1 '• 1 CKUS5 w Kerosene THE SHELL COMPANY OF NEW ZEALAND LIMITED ...i i j rirwin-rwii——l CK .99c j
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Otago Witness, Issue 3958, 21 January 1930, Page 14
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201Page 14 Advertisements Column 1 Otago Witness, Issue 3958, 21 January 1930, Page 14
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