Recent content by Gengle

  1. G

    CB750 Sound of Engine Seizure?

    Okay. Is there any cleaner I can pump through the oil system to flush the oil galleries?
  2. G

    CB750 Sound of Engine Seizure?

    Thanks for the tip. I pulled tapper covers and turned the engine over without ignition for 15 seconds or so. valves on cylinders 3&4 are dry. 1&2 look ok. I installed a pressure gauge at the oil port and reading about 25psi. Assuming clogged oil journal, is there any way to clean it without...
  3. G

    CB750 Sound of Engine Seizure?

    Thanks for the replies. The carbs have been swapped out for dual Mikuni’s from Murray’s Carbs. The bike starts easy and sounds good for the first ten seconds or so and as it heats up there is a tapping and then the chirping gets progressively louder until it slows down (sounds like due to...
  4. G

    CB750 Sound of Engine Seizure?

    I’m new to motorcycles and recently picked up a 1974 CB750 SOHC. Got it running and it sounded great. I accidentally left the petcock on overnight and now after it warms up it has a chirping coming from the engine and eventually stalls and dies as it heats up. Definitely metal on metal. I’ve...
Back
Top