Repair Instructions; Engine Components Removable With The Engine In Place - Suzuki Intruder VZ1500 Service Manual

8) Repeat this procedure from 4) to 7) with the other
cylinder.
Compression pressure specification
Standard
850 – 1 450 kPa
#1 Cylinder (8.5 – 14.5 kgf/cm
121 – 206 psi)
650 – 1 250 kPa
#2 Cylinder (6.5 – 12.5 kgf/cm
– 178 psi)
Low compression pressure can indicate any of
the following conditions:
• Excessively worn cylinder walls
• Worn piston or piston rings
• Piston rings stuck in grooves

Engine Components Removable with the Engine in Place

Engine components which can be removed while the engine is installed on the frame are as follows. For the installing
and removing procedures, refer to respective paragraphs describing each component.
Center of Engine
Item
Air cleaner element
Oil filter
Oil pump
Throttle body
Cam chain tension
adjuster
Cylinder head cover
Camshafts
Cylinder head
Cylinder
Pistons
Starter motor
Limit
750 kPa
2 , (7.5 kgf/cm 2
106.7 psi)
550 kPa
2 , 92 (5.5 kgf/cm 2
78.2 psi)

Repair Instructions

Removal
Refer to "Air Cleaner
Element Removal and
Installation (Page 1D-6)".
Refer to "Engine Oil and
Filter Replacement in
Section 0B (Page 0B-8)".
Refer to "Oil Pump Removal
and Installation in Section 1E
(Page 1E-9)".
Refer to "Throttle Body
Removal and Installation
(Page 1D-12)".
Refer to "Engine Top Side
Disassembly (Page 1D-27)".
Refer to "Engine Top Side
Disassembly (Page 1D-27)".
Refer to "Engine Top Side
Disassembly (Page 1D-27)".
Refer to "Engine Top Side
Disassembly (Page 1D-27)".
Refer to "Engine Top Side
Disassembly (Page 1D-27)".
Refer to "Engine Top Side
Disassembly (Page 1D-27)".
Refer to "Starter Motor
Removal and Installation in
Section 1I (Page 1I-3)".
• Poor valve seating
• Ruptured or otherwise defective cylinder head
gasket
Overhaul the engine in the following cases:
• Compression pressure in one of the cylinders is
750 kPa (7.5 kgf/cm
,
550 kPa (5.5 kgf/cm
less.
,
• Both compression pressure readings are below
850 kPa (8.5 kgf/cm
650 kPa (6.5 kgf/cm
when they measure 750 kPa (7.5 kgf/cm
psi) (#1 cylinder) and 550 kPa (5.5 kgf/cm
psi) (#2 cylinder) and more.
9) After checking the compression pressure, reinstall
the removed parts.
Inspection
Refer to "Air Cleaner
Element Inspection in
Section 0B (Page 0B-2)".
—
Refer to "Oil Pump
Inspection in Section 1E
(Page 1E-10)".
Refer to "Throttle Body
Inspection and Cleaning
(Page 1D-17)".
Refer to "Cam Chain Tension
Adjuster Inspection
(Page 1D-43)".
Refer to "Cylinder Head
Cover Inspection (Page 1D-
41)".
Refer to "Camshaft
Inspection (Page 1D-41)".
Refer to "Cylinder Head
Related Parts Inspection
(Page 1D-47)".
Refer to "Cylinder Inspection
(Page 1D-53)".
Refer to "Piston and Piston
Ring Inspection (Page 1D-
55)".
Refer to "Starter Motor
Inspection in Section 1I
(Page 1I-6)".
Engine Mechanical:
2 , 106.7 psi) (#1 cylinder) or
2 , 78.2 psi) (#2 cylinder) and
2 , 121 psi) (#1 cylinder) and
2 , 92 psi) (#2 cylinder) even
2 , 106.7
2 , 78.2
B940H21406001
Installation
Refer to "Air Cleaner
Element Removal and
Installation (Page 1D-6)".
Refer to "Engine Oil and
Filter Replacement in
Section 0B (Page 0B-8)".
Refer to "Oil Pump Removal
and Installation in Section 1E
(Page 1E-9)".
Refer to "Throttle Body
Removal and Installation
(Page 1D-12)".
Refer to "Engine Top Side
Assembly (Page 1D-32)".
Refer to "Engine Top Side
Assembly (Page 1D-32)".
Refer to "Engine Top Side
Assembly (Page 1D-32)".
Refer to "Engine Top Side
Assembly (Page 1D-32)".
Refer to "Engine Top Side
Assembly (Page 1D-32)".
Refer to "Engine Top Side
Assembly (Page 1D-32)".
Refer to "Starter Motor
Removal and Installation in
Section 1I (Page 1I-3)".
1D-4