10-19-2020, 07:02 AM
(10-19-2020, 05:47 AM)max_imp Wrote: Good idea about changing the fuel, before overthinking this; was the old fuel dirty?
And did the starter crank the engine over as per normal or was it slow to rotate the engine?
If there is not enough voltage available for the injector pintels to open up they may stick closed, just a guess.
If it is a fuel issue it should fire up with a spritz of brake cleaner in the air intake of the air filter under the rh sidecover.
Verify ( again ) that the fuel pump relay is energizing ( clicking ) every time you activate the red stop switch, you should hear and feel it making contact with your fingers.
Also try full open throttle start, it may work.
My cb1100 has refused to start once and stuttered into life for no reason a little while later, so it can happen after sitting for some time, don't know why.
5500 miles does not sound like a worn out pump to me, let us know your progress
Hi Max, thanks for the response - I'm not sure I would call the old fuel dirty, but it was definitely old, and smelled like varnish, and when I inserted the syphon hose it came out with grim/little chunks on the hose - so it was definitely nasty and needing to be cleaned out- starter cranked really well - after charging the battery - it's a Shorai LFX19A4_BS12 battery - I was thinking about going back to the original battery - but after having sit for several months and only running it occasionally over the past couple years - it still had 13.1v (not cranking) and after I charged it it came back like new- so I decided to keep it and instead invest in the correct charger for it - :-) - yes I could hear, and feel the relay clicking when hitting the kill switch- I also removed them both and swapped them, and even checked the resistance while they were out with 12v applied - they both work as expected - I did try the full open throttle - no help- the only think I didn't try was the brake cleaner in the air intake (wish I would have thought to do that) but to be sure, the manual indicates to remove the connector to the FP, and take a measurement (12v battery power) says it should be there a few seconds, if it stays on more than a few seconds it's a bad FP- that (and the fact I couldn't hear the FP turn on) was my initial 'oh-crap' moment - the rest was just to ensure I wasn't wasting money on a new FP if it was something stupid (like a fuse, relay, switch) anyhow- I just ordered the new ~600 FP a few minutes ago- I have the tank removed - thanks to the input from another gentleman on the forum, and next on my list (while I await the new part) is replacing tires - an oil change, and other cool and fun stuff- hopefully the FP fixes the issue- otherwise I'm gonna be depressed :-) one more question you might be able to help with- is there anything special I should do to ensure the fuel lines are clean before starting it with the new FP? appreciate your input- I will update you as I make progress - thanks!