97-8
Page 15 of 15
A dot (•) on right indicates changes from 1996 model.
➀
Engine speed at which maximum power is achieved.
➁
At 6000 RPM (engine cold) with headlamp turned on.
➂
Force applied midway between pulleys to obtain specified deflection.
BTDC: Before Top Dead Center
ATDC: After Top Dead Center
PTO: Power Take Off side
CTR: Center
MAG: Magneto side
MODEL
MACH Z LT
Engine Type
809
•
Maximum HP RPM
➀
±100 RPM
8500
•
Rotary Valve
P/N
Opening (BTDC)/
Closing (ATDC)
N.A.
Carburetor Type
PTO TM 38-C159
CTR TM 38-C159
MAG TM 38-C159
•
Main Jet
PTO 380
CTR 380
MAG 380
•
Needle Jet
O-4 (327)
•
Pilot Jet
PTO 50
CTR 50
MAG 50
•
Needle Identification — Clip Position
8AGY1-41
•
Slide Cutaway
2.0
Float Adjustment
±1 mm (in)
20.0 (.787)
Air Screw Adjustment
±1/16 Turn
PTO 4
CTR 4
MAG 4
•
Idle Speed RPM
±200 RPM
1800
•
Gas Grade/Octane Number
(R + M)/2
Regular Unleaded/87 or Super Unleaded/91 (recommended)
Gas/Oil Ratio
Oil Injection
Ignition Timing BTDC
➁
mm
(in)
2.11
(.083)
Trigger Coil Air Gap
mm
(in)
0.55 - 1.45
(.022 - .057)
Gear Ratio
Teeth
25/44
Engagement Speed
±100 RPM
4100
Drive Pulley Calibration Screw Position
3
•
Pulley
Distance
Z
(+ 0, – 1) mm
(+ 0, – 1/32) in
16.5
(21/32)
Offset
X
± 0.4 mm
(± 1/64 in)
35.0
(1-3/8)
Y
Dimension Y must exceed X from
1 mm (1/32 in) to 2 mm (5/64 in)
Drive Belt
Adjustment
Deflection
± 5 mm (in)
32 (1-1/4)
Force
➂
kg (lbf)
11.34 (25)
•
Driven Pulley Preload
± 0.7 kg
(± 1.5 lbf)
7.0
(15.43)
•
Drive Chain Tension
Fully tighten adjusting screw by hand then back OFF only far
enough for hair pin installation
Track
Adjustment
Deflection
mm
(in)
35 to 40 (1-3/8 to 1-9/16)
with a 7.3 kg (16 lb) downward pull
•
