Basic adjustments and run-in
The basic carburetor adjustments are done at the
factory. The basic adjustments are high speed needle
(H) = 2 ½ turns and low speed needle (L) = 2 turns.
To give the components of the engine sufficient
lubrication during run-in, adjust the idle speed. Adjust
the idle speed to 600-700 rpm below the recommended
maximum idle speed.
CAUTION: If the saw chain rotates at idle
speed, turn the idle speed screw
counterclockwise until the saw chain stops.
To adjust the low speed needle (L)
1. Turn the low speed needle clockwise and
counterclockwise to find the highest idle speed.
2. Turn the low speed needle (L) ¼ turn
counterclockwise from the position of the highest idle
speed.
L
+ 1/4
To adjust the idle speed screw (T)
1. Start the product.
2. Turn the idle speed screw clockwise until the saw
chain starts to rotate.
3. Turn the idle speed screw counterclockwise until the
saw chain stops.
Note: The idle speed is correctly adjusted when the
engine runs correctly in all positions. The idle speed
must also be safely below the speed at which the saw
chain starts to rotate.
WARNING: If the saw chain does not stop
when you turn the idle speed screw, speak
to your servicing dealer. Do not use the
product until it is correctly adjusted.
To adjust the high speed needle (H)
CAUTION: To make sure that the
adjustment is correct, speak to your
servicing dealer who has access to a
tachometer. Do not override the
recommended maximum idle speed.
1. Start the product.
2. Operate the product at full throttle for approximately
10 seconds.
3. Turn the high speed needle (H) ¼ counterclockwise.
4. Operate the product at full throttle for approximately
10 seconds again and listen to the difference in the
idle speed.
5. Turn the high speed needle (H) ¼ counterclockwise.
6. Operate the product at full throttle for approximately
10 seconds again and listen to the difference in the
idle speed.
Note: You have operated the product at adjustments
of H=±0, H=+¼, H=+½ from the basic adjustments.
The engine has a different sound for each
adjustment.
7. Turn the high speed needle (H) clockwise until the
adjustments is correct and the product has the
correct sound.
H
Note: The high speed needle (H) is correctly
adjusted when the product 4-cycles a little at full
throttle. If the product "screams" the product is set
too lean, which can cause damage to the engine.
The product is set too rich if the product 4-cycles and
ejects smoke.
To examine if the carburetor is correctly
adjusted
• Make sure that the product has the correct
acceleration capacity.
• Make sure that the product 4-cycles a little at full
throttle.
• Make sure that the saw chain does not rotate at idle
speed.
• If the product is not easy to start or has less
acceleration capacity, adjust the low and high speed
needles.
CAUTION: Incorrect adjustments can
cause damage to the engine.
To replace a broken or worn starter
rope
1. Loosen the screws to the starter housing.
20
1064 - 001 - 31.01.2019
Summary of Contents for GZ2700T
Page 1: ...GZ2700T EN Operator s manual 2 30 ZH 31 55 KO 56 83...
Page 33: ...39 43 55 37 1064 001 31 01 2019 33...
Page 34: ...Zenoah 34 1064 001 31 01 2019...
Page 35: ...44 Zenoah A B A B B A B B A 31 1064 001 31 01 2019 35...
Page 36: ...3 m 10 ft Min 3m 10 ft 43 55 50 36 1064 001 31 01 2019...
Page 37: ...1 2 3 4 5 6 7 8 50 9 1 1 2 3 1064 001 31 01 2019 37...
Page 39: ...31 10 Zenoah Zenoah 0 32 55 31 44 1064 001 31 01 2019 39...
Page 40: ...1 2 6 3 4 40 1 2 6 3 4 40 40 1064 001 31 01 2019...
Page 41: ...1 2 3 4 a b 5 6 7 8 1 2 a b 1 2 1064 001 31 01 2019 41...
Page 42: ...1 2 3 4 5 6 7 8 1 1 2 1 3 4 5 6 42 1064 001 31 01 2019...
Page 43: ...1 2 3 4 30 cm 12 in 52 44 45 1064 001 31 01 2019 43...
Page 44: ...51 48 44 51 45 51 47 51 48 51 45 1 2 0 6 0 024 1 2 1 40 44 1064 001 31 01 2019...
Page 45: ...2 3 1 2 3 4 5 1 2 1 2 31 1 2 1 1064 001 31 01 2019 45...
Page 47: ...4 H 4 4 1 2 3 30 cm 12 in 4 5 6 7 3 8 9 10 11 1 2 2 3 1 2 3 1 2 1064 001 31 01 2019 47...
Page 48: ...3 54 1 a b c 2 3 54 4 Zenoah 55 in cm T in PITCH D D 2 in mm 48 1064 001 31 01 2019...
Page 49: ...mm in A B A B Zenoah 49 1 55 Zenoah 2 3 4 5 6 A C B 1064 001 31 01 2019 49...
Page 50: ...55 A B C 49 1 Zenoah 2 3 1 2 3 4 5 6 31 1 3 4 2 20 cm 8 in 50 1064 001 31 01 2019...
Page 51: ...3 1 4 51 1 2 3 4 1 2 3 4 4 mm 0 16 in 1 1064 001 31 01 2019 51...
Page 52: ...2 3 4 5 6 7 1 a b 1 2 52 1064 001 31 01 2019...
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Page 59: ...Zenoah 1064 001 31 01 2019 59...
Page 60: ...71 Zenoah A B A B B A B B A 60 1064 001 31 01 2019...
Page 61: ...56 2 3m 10 ft Min 3m 10 ft 70 1064 001 31 01 2019 61...
Page 62: ...82 77 1 2 3 4 5 62 1064 001 31 01 2019...
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Page 66: ...1 2 6 3 4 66 1 2 6 3 4 66 1 2 66 1064 001 31 01 2019...
Page 67: ...3 4 a b 5 6 7 8 1 2 a b 2 1 1064 001 31 01 2019 67...
Page 68: ...2 1 2 3 4 5 6 7 8 68 1064 001 31 01 2019...
Page 69: ...1 1 2 3 4 5 6 1064 001 31 01 2019 69...
Page 70: ...1 2 3 4 30cm 12 80 71 72 78 75 71 79 72 79 75 79 70 1064 001 31 01 2019...
Page 71: ...75 78 72 1 2 0 6mm 0 024 1 2 1 65 2 1064 001 31 01 2019 71...
Page 72: ...3 1 2 3 4 5 1 2 1 2 56 1 2 72 1064 001 31 01 2019...
Page 74: ...7 H H H 4 4 4 1 2 3 30cm 12 4 5 6 7 3 8 9 10 11 1 2 2 3 74 1064 001 31 01 2019...
Page 75: ...1 2 3 1 2 3 81 1 a b c 2 3 81 4 Zenoah 82 cm T PITCH D D 2 1064 001 31 01 2019 75...
Page 76: ...mm mm A B A B Zenoah 76 1064 001 31 01 2019...
Page 77: ...77 1 Zenoah 82 2 3 4 5 6 A C B 82 A B C 77 1 Zenoah 2 3 1 1064 001 31 01 2019 77...
Page 78: ...2 3 4 5 6 56 1 2 20cm 8 3 1 4 79 1 2 3 4 78 1064 001 31 01 2019...
Page 79: ...1 2 3 4 4 mm 0 16 1 2 3 4 5 6 7 1 1064 001 31 01 2019 79...
Page 80: ...1 a b 1 2 81 80 1064 001 31 01 2019...
Page 81: ...6 8 65 1 2 3 70 4 Zenoah GZ2700T cm3 27 0 1064 001 31 01 2019 81...
Page 84: ...www zenoah com Original instructions 1140568 80 2019 02 04...
