CB750K4

Customers CB750K4

This 1974 CB750 has been a long term project. Bike was presented running, but after a cylinder compression test we found number two cylinder well down on compression.

Motor top end has been removed and we have inspected and measured all bores and have carried out honing on all pots. Cylinder head is in good condition including valve guides, however we have down a valve grind and replaced all valve guide seals.

Two of the cylinder inlet ports were cracked so they were removed and new ports have been turned up on the lathe and cemented back into the cylinder head. Once the cement dried we carried out a fine port and polish.

Front forks were rusted into steering head, so we have refurbished both forks. New inner tubes, new triple lipped oil seals and fork oil. The forks have been slightly modified to suit the customers weight and riding style.

New Inner Tubes

Lower outer fork legs sanded and polished



Fork oil weight and height modified for customer



Lower fork axle caps checked for cracks

 

The outer lower fork legs have been sanded and polished.