Welcome to my website - my name is David McClellan. I apologize for the website, I did it myself... I am very good with metals.  I have been a motorcycle mechanic and machinist for 50 years, semi-retired, and have a small machine shop in San Francisco. 
​Below is a list of some of the work I do: 

  • Cylinder Boring & Honing             
  • Cylinder Re-Sleeving   
  • Cylinder & Head Resurfacing                                                  
  • Valve Jobs                    
  • Valve Guide Replacement                            
  • Valve Seat Replacement                                 
  • Press together Crankshaft Rebuild             
  • Thread Repair                     
  • Broken Bolt Removal
  • Lathe & Milling Machine Work         
  • CNC Mill Work
  • Head Line Boring                      
  • Brake Drum Turning
  • One-Off Fabrication
 I primarily - but not exclusively - work on motorcycles and small engines.  Contact me if you don’t see what you need here as I enjoy challenges.

email     info@motomachineworks.com
phone   650.994.0770