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Honda CB350 Information

I really like Honda CB350s. I have several. Unfortunatly I've sold a few but I have a bunch more waiting to be built. I picked all this up at the famous Skip's Honda Auction.

Tweats about Honda CB350s
Tune up Settings
Breaker Point Gap 0.025-0.028" 0.60-0.70mm
Spark Plug Gap (B8ES) 0.025-0.028" 0.60-0.70mm
Valves
intake
Exhaust
0.002"
0.004"
0.05mm
0.10mm


Float Height
< 1045165 19.0mm
1045165 - 1065278 21.0mm
> 1065279 26.0mm


Tires
Standard 100/90-18 110/90-18
Fatty Look 110/90-18 120/90-18
I like Shinko Tour Master's from Revzilla.

Engine Measurments

Cylinder
64.01mm (2.5201-2.5205")
Piston (Measure perpendicular to the piston pin)
63.97 - 63.99mm (2.5185 - 2.5193")
Replace if under 63.9mm (2.51")
Piston Clearence .04mm (0.0015")

Piston Ring Slide Clearance
Top 0.030-0.060 (0.0012 - 0.0024") Replace > 0.18mm (0.007")
Second 0.015-0.045 (0.0006 - 0.0018") Replace > 0.165mm (0.0065")
Oil 0.015-0.045 (0.0004 - 0.0018") Replace > 0.170mm (0.0067")
Piston Ring Gap
0.2 - 0.4mm (0.008 - 0.016") Replace > 0.8mm (0.032")

Honda CB350 Shop Manual (35mb PDF)

Wiring Diagrams

This is the custom diagram I use on my bikes
Stock Wire Diagram
1970 CB350 and Later Diagram
CB350 K4 Diagram
CB350G Diagram