![background image](http://html2.mh-extra.com/html/zenoah/gz4350/gz4350_operators-manual_3482255026.webp)
First adjust the L-jet, followed by the idiling T-screw and
finally the H-jet.
CAUTION: Do not attempt to adjust the L-
and H-jets beyong either stop as this could
cause damage.
1. Make sure that the air filter is clean and the cylinder
cover is fitted before you make any adjustments.
CAUTION: If you adjust the carburetor
while a dirty air filter is in use this will
result in a leaner mixture next time the
filter is cleaned. This can give rise to
serious engine damage.
2. Start the product and let it warm up for 10 minutes.
See instructions under heading
13
3. Place the product on a flat surface so that the guide
bar points away from you and so that the guide bar
and saw chain do not come in contact with the
surface or other objects.
4. Turn the low speed L-jet clockwise until it stops.
5. If the engine accelerates poorly or idles unevenly,
turn the low speed L-jet anti-clockwise until you
achieve good acceleration and idling.
6. If it is necessary to re-adjust, turn the T-screw
clockwise until while the engine is running until the
saw chain starts to rotate.
7. Turn anti-clockwise until the saw chain stops.
Note: When the idle speed is correctly adjusted the
engine should run smoothly in every position and the
engine speed should be safely below the speed at
which the saw chain starts to rotate.
WARNING: Contact your servicing
dealer if the idle speed setting can not
be adjusted so that the saw chain stops
at idle. Do not use the product until it has
been properly adjusted or repaired.
At the factory the engine is adjusted at sea level. When
working at a high altitude or in different weather
conditions, temperatures and atmospheric humidity, it
may be necessary to make minor adjustments to the
high speed H-jet. When test run at the factory, the high
speed H-jet is set so that the engine satisfies the
applicable legal requirements at the same time as it
achieves maximum performance. The high speed H-jet
of the carburetor is then locked using a limiter cap in the
fully screwed out position. The limiter cap limits the
potential to adjust the high speed H-jet to at most 1/2
turn.
CAUTION: If the high speed H-jet is screwed
in too far, it may damage the piston/cylinder.
When the carburetor is correctly adjusted the product
accelerates without hesitation and 4-cycles a little at
maximum speed. It is also important that the saw chain
does not rotate at idle. If the L-jet is set too lean it may
cause problems when you start the product, as well as
poor acceleration. If the H-jet is set too lean the product
will have less power, poor acceleration and could suffer
damage to the engine.
Examination, maintenance and service
of the product's safety equipment
Note: All service and repair work on the product
demands special training, especially maintenance work
regarding the safety devices on the product. If your
product fails any of the checks described below we
recommend you to bring your product to your servicing
dealer.
To do a check of the brake band
1. Brush off any wood dust, resin and dirt from the
chain brake and clutch drum. Dirt and wear can
impair operation of the brake.
2. Do a check of the brake band. The brake band must
be at least 0,6 mm (0.024 inch) thick at its thinnest
point.
To do a check of the front hand guard
Regularly carry out a check of the front hand guard and
the inertia brake release.
1. Do a visible check to make sure the front hand guard
is not damaged and that there are no visible defects
such as cracks.
26
320 - 005 - 27.09.2017
Summary of Contents for GZ4350
Page 89: ...104 112 129 98 320 005 27 09 2017 89...
Page 90: ...90 320 005 27 09 2017...
Page 91: ...320 005 27 09 2017 91...
Page 92: ...114 GZ4350 87 114 A A B C D C D 92 320 005 27 09 2017...
Page 93: ...320 005 27 09 2017 93...
Page 94: ...114 A B 98 104 94 320 005 27 09 2017...
Page 95: ...320 005 27 09 2017 95...
Page 96: ...3 m 10 ft 129 96 320 005 27 09 2017...
Page 97: ...Zenoah 129 cm L T PITCH D D 2 mm PITCH D D 2 mm 320 005 27 09 2017 97...
Page 98: ...1 2 A 98 320 005 27 09 2017...
Page 99: ...3 4 5 6 122 7 8 9 320 005 27 09 2017 99...
Page 101: ...1 2 3 4 5 1 Zenoah Zenoah 0 C 32 F 1 2 3 4 5 3 m 10 ft 320 005 27 09 2017 101...
Page 102: ...1 2 3 1 2 102 320 005 27 09 2017...
Page 103: ...1 2 3 4 5 6 7 1 2 320 005 27 09 2017 103...
Page 104: ...104 320 005 27 09 2017...
Page 105: ...320 005 27 09 2017 105...
Page 106: ...1 2 1 2 3 3 4 1 2 106 320 005 27 09 2017...
Page 107: ...3 a b 2 3 4 a 1 3 b 5 a 1 3 b 2 1 2 320 005 27 09 2017 107...
Page 108: ...110 1 2 3 135 1 2 3 108 320 005 27 09 2017...
Page 109: ...1 2 2 1 1 3 1 1 2 2 2 1 1 4 45 90 1 3 5 cm 1 5 2 in 2 3 4 320 005 27 09 2017 109...
Page 110: ...5 1 10 6 129 110 320 005 27 09 2017...
Page 111: ...1 2 3 4 5 2 3 2 54 cm 1 in 2 54 5 08 cm 1 2 in 6 7 320 005 27 09 2017 111...
Page 112: ...1 0 C 1 2 1 2 2 5 C 112 320 005 27 09 2017...
Page 113: ...1 2 1 2 1 2 Zenoah L H T T H L L H 10 2700 L T H L H 1 2 10 99 320 005 27 09 2017 113...
Page 114: ...3 4 L 5 L 6 7 H H H H 1 2 H 4 L H 1 2 0 6 mm 0 024 in 1 114 320 005 27 09 2017...
Page 115: ...2 3 4 5 1 99 2 3 1 2 320 005 27 09 2017 115...
Page 116: ...3 4 5 1 2 1 2 1 2 STOP 1 116 320 005 27 09 2017...
Page 117: ...2 3 1 2 30 cm 12 3 320 005 27 09 2017 117...
Page 118: ...4 3 5 6 7 119 1 117 2 3 4 118 119 1 2 2 1 2 118 320 005 27 09 2017...
Page 119: ...3 4 119 1 2 3 1 2 3 4 Zenoah 320 005 27 09 2017 119...
Page 120: ...1 2 3 4 5 1 2 3 4 5 1 2 1 2 1 2 0 65 mm 3 0 65 mm 0 025 128 A B 120 320 005 27 09 2017...
Page 121: ...A B Zenoah 130 130 1 122 2 3 4 4 mm 5 32 min 4 mm 5 32 320 005 27 09 2017 121...
Page 122: ...C 130 A B C 121 1 2 1 2 122 320 005 27 09 2017...
Page 123: ...3 4 5 GZ4350 87 1 3 4 20 cm 8 2 1 A B A B 320 005 27 09 2017 123...
Page 124: ...A B 1 2 3 4 1 2 3 4 5 4 mm 1 2 3 124 320 005 27 09 2017...
Page 125: ...4 1 a b 13 15 15 16 18 1 2 3 4 5 320 005 27 09 2017 125...
Page 126: ...112 0 6 mm 0 024 in 0 65 mm 126 320 005 27 09 2017...
Page 127: ...320 005 27 09 2017 127...
Page 259: ...SP33G 4 8 mm 586 93 34 01 0 65 mm 30 80 H30 505 69 81 27 85 320 005 27 09 2017 259...