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