20Replacing the return spring Replacing the suction head- Demount the fan housing (J/1).- Loosen the screw with the star-shaped recess (J/2) on thepivot.- Pull off the pivot (J/3).- Remove the cable drum (J/4).- Demount the spring cover (J/5) (3 screws).- Slightly knock the hollow side of the fan housing on woodwhile holding it tightly. Thus the old spring will jump out andrelease.- The new spring is delivered in a box, under full tension.For mounting the whole box is pressed into the fan housingand the wire ring is stripped off (a spring which has jumpedout is remounted by turning it clockwise into the housing).- Pull the suction head by means of a bent wire through thetank opening.- The felt filter (K/1) of the suction head can be clogged.- It is recommended to replace the suction head once everythree months in order to guarantee an unimpeded fuelflow to the carburetor.- Demount the fan housing (H/1) (4 screws).- The cable drum must not be demounted.- Remove the old cable.- Mount the new cable (¯ 4x1000 mm) and tie it up in a simpleknot in the drum, and in a knot with a loop in the startergrip. The end of the cable must not project the drum.- Wind the cable around the drum as far as possible. Thenpull the cable with the starter grip approx. 50 cm out of thedrum, hold the drum tightly and wind the cable once againaround the drum.- Release the drum and let the cable wind up by means ofthe spring tension. The starter grip must now stand uprightat the outside of the starter casing.NOTE:When the starter cable has been completely pulled out, itmust be possible to turn the cable drum against the springtension through 1/4 rotation.IReplacing the starter cableJ K312451H1