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Last kinks of my CB550. Trouble starting and problems with engine going out
alexdecker:
--- Quote from: Oddjob on June 30, 2023, 02:48:06 PM ---I'd check the connections and the contacts for the kill switch, does the electrics go out at the same time as the engine dies or is it just the engine dying that happens?
--- End quote ---
I will test the control, but the switches are brand new. Also, the electrics does not go out. I can restart the engine while coasting just by pushing the Start button again (with the clutch held in obviously). But all lights are still on, to the best of my knowledge.
Trigger:
--- Quote from: alexdecker on June 30, 2023, 02:53:54 PM ---
--- Quote from: robvangulik on June 30, 2023, 11:25:57 AM ---Do you test compression with the throttle completely open?
--- End quote ---
Nope. Am I supposed to? I test it cold. I take out one of the spark plugs, screw in the meter and with the kill switch on use the electric starter to get the engine to turn a few times.
--- End quote ---
At 25 to 30PSI the bike should not even start. You are doing something wrong or the pressure tester is wrong ;)
Oddjob:
--- Quote from: alexdecker on June 30, 2023, 02:55:04 PM ---
--- Quote from: Oddjob on June 30, 2023, 02:48:06 PM ---I'd check the connections and the contacts for the kill switch, does the electrics go out at the same time as the engine dies or is it just the engine dying that happens?
--- End quote ---
I will test the control, but the switches are brand new. Also, the electrics does not go out. I can restart the engine while coasting just by pushing the Start button again (with the clutch held in obviously). But all lights are still on, to the best of my knowledge.
--- End quote ---
In that case the engine cutting out is most likely a bad connection on the kill switch or coils connection. Also, just in case, check the earth connection right by the coils on the frame.
robvangulik:
--- Quote from: alexdecker on June 30, 2023, 02:53:54 PM ---
--- Quote from: robvangulik on June 30, 2023, 11:25:57 AM ---Do you test compression with the throttle completely open?
--- End quote ---
Nope. Am I supposed to? I test it cold. I take out one of the spark plugs, screw in the meter and with the kill switch on use the electric starter to get the engine to turn a few times.
--- End quote ---
Yes, open the throttle completely, and let the engine turn over until the meter doesn't go up anymore. Now I'm curious what the meter will tell you....
And it works best with ALL the spark plugs out!
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