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Information

Frame number list for Honda SL70

FRAME AND ENGINE NUMBERS HONDA SL70

MODEL FRAME NUMBER ENGINE NUMBER YEAR NOTES
 K0 SL70-1000001~ SL70E-1000001~ 1971-1972  
K1 SL70-1100001~ SL70E-2000001~ 1973  

 

1971-1972 SL70 K0 SL70E-1000001 SL70E-1999999 6 Volt Points Engine
1973 SL70 K1 SL70E-2000001 SL70E-9999999 6 Volt Points Engine


(c) 2017 4-stroke.net - Recovered from honda50.com

 This page has been merged with the VIN Database

Tune-Up Specifications for Honda SL70

These are the tune-up specifications for the Honda SL70. The source of this data is Chilton's Honda Singles Repair and Tune-up Guide, 2nd ed. This book covers models made between 1968 and 1975.

Ignition    
Standard spark plug C7HS NGK
Spark plug gap (in./mm) 0.024-0.028/0.6-0.7  
Breaker point gap (in./mm) 0.012-0.016/0.3-0.4  
     
Valve clearance    
Intake (in./mm) 0.002/0.05  
Exhaust (in./mm) 0.002/0.05  
     
Carburetor    
Pilot air screw (turns out) 1 1/2  
Float level (in./mm) 0.28/7.0  
Idle speed (rpm) 1500  
     
Cranking compression (psi) 170  

1 = K3~ : 0.65/16.5
2 = Keihin : 0.78/19.5 - Mikuni : 0.95/24.0
3 = CT90 : 0.85/21.5 - K1 : 0.94/23.5

 

Maintenance data for Honda SL70 (K1)

This is the maintenance data for the Honda SL70 and SL70 K1. The source of this data is Chilton's Honda Singles Repair and Tune-up Guide, 2nd ed. This book covers models made between 1968 and 1975.

Fuel, Oil and Tire Pressure  
Gas Tank (gal) 1.3
Engine Oil (qt/l) 0.7/0.7
Front forks @ Leg (oz/cc) 3.7/110 
Tire Pressure 1 Front / Rear (psi) 20/23
   
Battery specifications  
Brand Yuasa
Model B60-6A
Voltage 6
Amp hrs. 2
Continuous Charging Rate (Amps) 0.2

1 = Add 2 psi front, 4-6 psi rear, when carrying a passenger or for high-speed operation
2 = 7-21 psi according to conditions --- not applicable

Periodic maintenance, based upon normal usage after break-in is complete

Weekly

  • Check engine oil level
  • Tire pressure (cold)
  • Spokes for tightness
  • Battery electrolyte level
  • Tightness of critical nuts and bolts
  • Chain adjustment

Every 200 miles

  • Lubricate and adjust drive chain

Every 1500 miles

  • Change engine oil
  • Clean and inspect air filter element
  • Decarbonize spark arrestor

Every 2000 miles

  • Clean and lubricate drive chain

Every 3000 miles

  • Clean and gap spark plug
  • Check points and ignition timing
  • Check valve adjustment
  • Check cam chain tension
  • Check clutch
  • Check carburetor settings
  • Clean fuel filter and sediment bowl
  • Grease fittings
  • Lubricate controls and cables

Every 6000 miles

  • Clean centrifugal and screen oil filters
  • Change front fork oil
  • Adjust steering head bearings