Honda TRX70 Fourtrax 1986 User Manual

CYLINDER HEADNALVES
TORQUE VALUES
Cylinder head cover nut
Cam sprocket bolt
Valve Inspection hole cap
Cylinder mounting bolt
Cylinder head bolt
Cam chain tensioner sealing bolt
TOOLS
Specla'
Valve guide reamer
Valve spring co mpressor attachment
Common
Valve guide driver, 5.5 mm
Valve spring comp resBor
TROUBLESHooTI NG
9-12 N·m (0 .9- 1.2 kg-m, 7-9 ft ·lbl
5-9 N·m (0.5 - 0.9 kg-m, 4- 7 ft-Ibl
10 - 14N'm (1.0 - 1.4 kg-m, 7 - 10 ft-Ibl
10 - 14 N ·m 11 .0 - 1.4 kg-m , 7- 10 ft-Ib)
10-14 N·m 11 . 0-1 .4 kg.m. 7 - 10 ft- lb)
20-25 N·m 12.0-2 .5 kg-m. 15-1 B ft -Ib)
079B4-098000A or 07984 - 0980000 (U .S.A. onlyl
07959-KM30100
07742-0010100 or 07942-3290100
07757-0010000
or 07957-3290001
Performance problems related to the cylinder head can usually be diagnosed by a compteuien test , or by tracing noises with
a sounding rod or stethoscope.
low Compression
Valves
- Incorrect val ve adjustment
- Burned or bent
valves
- Incorrect valve timing
- Broken valve spring
Cylinder head
-
leaking or damaged head gasket
-
Warped or cracked cylinder head
Cylinder and piston (Refer to Section 7)
6-2
High Compression
Excessive carbon build· up on p iston head or in combus ·
tion chember
excessive Noi ..
IncOfTect valve adjustment
Sticldng valve or broken valve spring
Damaged
or wom camshaft
loose or wom cam chain
Worn or damaged cam chain tensioner
Worn cam sprocket leeth
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Honda TRX70 Fourtrax 1986 Specifications

General

Brand	Honda
Model	TRX70 Fourtrax 1986
Category	Offroad Vehicle
Language	English