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TECH TIPS

Tech tips and FAQs

Gas/ Oil Ratio is 52 to 1 with Golden Spectro

Torque Specifications Engine Flywheel Retaining Nut 75 ft/lb

Case Half Nuts 5 ft/lb

Final Drive Nut 75 ft/lb

Seal Retainer Screws 5 ft/lb

Clutch Hub Nut 75 ft/lb

Primary & Mag Cover Screws 5 ft/lb

Engine Sprocket 90 ft/lb

Engine Mounting Bolts 35 ft/lb (360 30ft + 15ft/lb)

Front Forks

Stanchion Plugs 50 ft/lb

Axle Clamp Bolts 6 ft/lb

Axle Nut 30 ft/lb

Top Bracket Fixing Nuts 30 ft/lb

Top Brket steering shaft clamp 15ft/lb Bottom Bracket-Stanchion Tube 15 ft/lb

Rear Suspension

Swing Arm Pivot Bolts 75 ft/lb

Rear Axle 30 ft/lb

Sprocket Bolts 20 ft/lb

Ignition Specifications

Breaker Point Gap 0.014-0.018 in. (0.38- 0.48mm)

Ignition Timing (BTDC)

125 Pursang 0.106-0.114 in. (2.7-2.9mm)

125 Sherpa T 0.080-0.094 in. (2.0-2.4mm)

175 All Models 0.108-0.116 in. (2.75-2.95)

200 All Models 0.106-0.114 in. (2.7-2.9mm)

250 Alpina 0.110-0.118 in. (2.8-3.0mm)

250 El Tigre, Frontera 0.106-0.114 in. (2.7-2.9mm)

250 Pursang, Sherpa T 0.098-0.110 in. (2.5-2.8mm)

350 Alpina 0.098-0.106 in. (2.7-2.7mm)

360 Pursang 0.087-0.094 in. (2.2-2.4mm)

370 Frontera 0.106-0.114 in. (2.7-2.9mm)

All Other Models Magneto Ing. 0.118-0.128 in. (3.0-

3.25mm) Electronic Ing. 0.108-0.116 in. (2.75-

2.95mm)

Recommended Fuel and Lubricants

Intercontinental Golden Spectro at 52 to 1 Ratio

Transmission Oil 90w Gear Box Oil, 20.1 FL Oz. (600cc) Clutch (Primary Case) 30w Motor Oil,10.1 FL OZ. (300cc)

Fork Oil OZ. cc SAE Grade

Lobito 125, 175 5.1 150 20

Sherpa S & T 125 5.1 150 20

Pursang, Astro 125 5.1 150 20

Campera 175 2.7 80 30

Sherpa S 175, 200 5.1 150 20

Matador 250 5.1 150 20

Metralla 250 1.9 55 40

El Tigre 1.9 55 40

Sherpa T 250, 350 6.5 190 30

Pursang 250 MK2-4 5.4 160 20

*Pursang 200, 250, 360 7.8 230 30

*Frontera 250, 370 7.8 230 30

Alpina 250, 350 6.5 190 30

Pursang 360 8.5 250 30

*Extended Travel Forks You can experiment with the SAE grades to suit your own needs.

PPG Paint Codes for Bultaco Colors:

Grigio Chiaro DCC 35982 - 74 Pursang Fender Gray:

Torch Red DAR74013 Bultaco Red:

Crystal Silver Metallic DAR 34926 Bultaco Silver:

Grabber Blue DBU 2230 Bultaco Blue:

Black DBU 9700: Competition Yellow DBU 4266 Bootlace Yellow:

Cadet Blue Metallic DBU 5414 Mecurio or Lobito Tank & Frame