Luke is bringing a PE175N back to life!

Service Data

Fuel 95 Octane 20:1 mix. (11.5L @20:1 = 575ml, @30:1 = 383ml, @40:1 = 287ml)
14mm
Spark Plugs
gap 0.5-0.6mmNGKNDChampionBosch
PE175C Hotter B-8EV W24ES-G N3G W08CS
StandardB-9EV W27ES-G N2G/N86G W2CC
Colder B-10EV W31ES-G N57G/N82GW07CS
PE175N Hotter B-9EV W27ES-G N2G/N86G W2CC
StandardB-10EV W31ES-G N57G/N82GW07CS
Colder B-11EGVW34ES-ZUN80G W06CS
Timing BTDC PE175C18.0° ± 2° @6000rpm
PE175N20.5° ± 2° @6000rpm

Engine Oil Suzuki CCI Super 2-cycle motor oil
Castrol Racing Oil R-30
Golden Spectro synthetic blend
Shell Super M
B.P. Racing Oil
Bel-Ray MC-1 Two-cycle Racing Lubricant

Transmission Oil SAE 20W/40 motor oil (Castrol MTX, etc.)
Volume Oil change800cc
Overhaul 850-900cc

Transmission wet multi-plate clutch
6-speed constant mesh
gearshift pattern1-down 5-up
Primary Reduction2.761(58/21)
Final Reduction4.000(48/12)
3.833(46/12) E24
Gear Ratios 1st3.090(34/11)
2nd2.214(31/14)
3rd1.647(28/17)
4th1.250(25/20)
5th1.045(23/22)
6th0.875(21/24)

Front Forks Diameter36mm
Steering Angle50° (right & left)
Caster60°
Rake &Trail29.2° & 130mm (5.12 in)
Oil
SAE 5W/20, 10W or 20W fork oil or A.T.F. (auto trans fluid)
274ml in each leg
Spring Len Max650.7mm
Min621.0mm
Rear Shocks KYB sealed units Length 380mm (15")eyelet 11mm diameter
Compressed270mmeyelet 21mm width

Chain DAIDO #520, 106 linkSlack: 50-60mm
Sprockets PE175C12-tooth counter 48 tooth rear(46 tooth in E24)
PE175N¹12-tooth counter 46 tooth rear
Tyres Front3.00-21-4PR 0.7-0.9kg/cm2 (10-13psi)
Rear4.00-18-4PR 0.7-0.9kg/cm2 (10-13psi)
¹ I'm running 13T/48T at the moment.

Carburettor PE175C 32mm Mikuni VM32SS #190 main 6DP17-3 needle (middle notch) pilot 1.25 turns
R-2 needle jet #25 pilot jet 32 ± 1.0mm float
PE175N 34mm Mikuni VM34SS #220 main 6DP17-3 needle (middle notch) pilot 1.25 turns
R-1 needle jet #25 pilot jet 28.0 ± 1.0mm float
PE175T 34mm Mikuni VM34SS #250 main 6DP17-3 needle (middle notch) pilot 1.50 turns
R-3 needle jet #25 pilot jet 29.2 ± 1.0mm float

Cylinder Inner Diameter Standard62.000-62.015mm Piston Diameter Standard61.935-61.950mm
Limit62.070mm Limit61.800mm
Ring-to-groove0.01-0.05mm Bore62.0mm Comp. Ratio7.6:1
Ring end gap 0.20-0.40mm Stroke57.0mm Displacement172cc

Engine Bearings Right-hand case 6202 (small)
6204 (large)
63/22 (main)
Left-Hand case 6002 (small)
63515 (with the locating pin)
6205 (main)
Needles 15mm*19mm*10mm (driveshaft)
23mm*28mm*16mm (big-end)
16mm*21mm*20mm (little-end)
20mm*25mm*26mm (clutch)
Seals ISCD 25 44 7 (main)
ISCW 30 56 9 (main)
ISCX 25 40 7 (driveshaft)
12 22 9 (gear change shaft)

Torque
Specifications
Cylinder Head nut2.3-2.7mkg
Engine Mounts10mm4.5-5.5mkg
8mm2.5-3.2mkg
Fork Clamp Bolt1.5-2.5mkg
Fork Cap Bolt3.5-5.0mkg
Steering Stem Head Bolt3.5-5.0
Handlebar Clamp Bolt1.2-2.0mkg
Swingarm Pivot BoltPE175C3.0-4.5mkg
PE175N4.5-7.0mkg
Drive Sprocket Nut4.0-6.0mkg
Rear Sprocket Bolts2.0-3.0mkg

E24
Charging
System
TypeMagneto
"PEI" Coil ResistanceR/W to B/W 214.2-Ω, R/W to B/R 25.7-Ω
HT coil ResistanceW/Bl to B/W 0.4-Ω, Plug cord to ground 13k-Ω
Battery6V 2Ah/10HR (Yuasa 6N2-2A-4)
Normal regulated amperage Day Over 1.0A @3000rpm Under 1.5A @8000rpm
NightOver 0.8A @3000rpm, Under 1.4A @8000rpm
Stator winding resistanceY/R to B/W 1-Ω, O to B/W 4.5-Ω

E24 wiring details

E24
Electrical
Lighting Coil output (AC volts)Over 5.5V @2500rpm/Under 8.5V @8000rpm
Headlight (Low/High)6V 15/15W
Instrument bulbsSpeedo 1.7W, Turn signal 3W
Taillight/stoplight6V 5/10W
Turn signal bulbs6V 8W
Fuse3A
Battery (specific gravity)1.26 at 20°C

Power PE175C18.0KW (24.0HP) @ 9500rpm (SAE,NET) / 18.5Nm (13.7lb-ft) @ 7500rpm
PE175N19.5KW (26.0HP) @ 9500rpm (SAE,NET) / 21.5Nm (15.9lb-ft) @ 8000rpm
Fuel Capacity PE175C12.0L2.64 Imp. gal.3.17 U.S. gal.
PE175N11.5L2.53 Imp. gal.3.038 U.S. gal.
Suspension Travel Front230mm (9.1")
Rear 200mm (7.9")
Ground Clearance280mm (11.0")
Length2100mm (82.7")
Width880mm (34.6")
Height1200mm (47.2")
Wheelbase1420mm (55.9")
Dry Weight98kg (216lbs)
ColourPhlolina YellowSuzuki Paint Code 163