Hi guys,
This is my final attempt at trying to fix this damned Cb550. Long story short the bike will die after riding about 10-15 min. It will start right back up when revving the throttle and then in less than 30 sec it will sputter, pop and ultimately die again. I had to ride home basically revving the whole time because if I would let it idle, IT WOULD DIE. One time I waited about 10 min for it to cool down and it ran and idled fine, but then starting popping and then DYING AGAIN! Not to mention, as I said, it pops like crazy almost sounding like it’s running out of fuel but I have a full tank.
Anyone have an idea on what it could be??
Things that I’ve checked:
-It’s not the fuel tank(dies even on an auxiliary fuel
tank)
- it’s not fuel starvation because there’s no “WHOOSH” sound when I open the fuel cap
- sparkplugs are sparkin blue
- stock air box and jets(needle clips in the middle)
- adjusted timing
- adjusted valves (.003 & .002)
- cleaned carbs three times(not one spec of gunk)
- moving petcock from ON to RES doesn’t help the issue
- when emptying float bowls none of them are dry, so they all have fuel.
Things that I’ve replaced:
- oil and oil filter
- new battery (I haven’t had to charge it for a week and it still turns on and turns starter motor over strong so it couldn’t be the battery dying)
- 4into1 Brand coils, wires and plug caps, spark plugs, condensers, points.
- new petcock (No there isn’t an inline fuel filter)
- OEM Honda genuine fuel lines(no they are not kinked)
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