This is actually a boat engine, but I seem to have better luck with engine problems in the car/truck arena.
This is a 1988 carburated 460. When idling cold and cruising at 75% throttle, the engine runs perfectly.
When I cut the throttle back, the engine often dies. If it does stay running, it surges badly and dies within a minute. Restarting after this is difficult and the only way to keep it running is to apply a lot of throttle. As soon as I put it in gear, it dies unless I immediately give it a lot of throttle. Once going, it runs perfectly and has normal power.
I suspect that I have a leaking float and it is flooding, but I don't know how to check.
2006-07-13 07:55:38 · 7 answers · asked by mansonpeters 1 in Cars & Transportation ➔ Maintenance & Repairs
I have since considered the choke. What does the choke mechanism usually look like so I could watch it's movement?
2006-07-17 07:58:16 · update #1
is there alot of fuel pouring into the engine when it tries to idle?
or a lot of black smoke? this would indicate that it is flooding.
sounds more like a vacuum leak to me,. check any vacuum line for breaks and the carb base plate gasket for leaks by spraying carb cleaner around the carb while running. you can also spray cleaner down the carb while the engine is running, if the idle picks up or smooths out, you have a vacuum leak, if it stalls the engine it is a flooding problem.
2006-07-13 08:06:31 · answer #1 · answered by truthteller 5 · 0⤊ 0⤋
The cooler air will make the bike run wealthy. It do not have made your bike idle at 5k although. Mine idles at 2500 I genuinely have a Honda 500.... choke and throttle cable not sticking of their sleeves? i'd wait till eventually a warmth day, or after a lengthy experience and word if the idle continues to be at 5k. .... icing on a motorbike carb.. i'm not that die troublesome of a rider, so i could not rule that one out. more advantageous than in all probability, purely the chilly. experience your 4 wheeler to artwork, its safer anyhow in the cooler frosty climate, and far hotter besides.
2016-11-02 00:10:46 · answer #2 · answered by ? 4 · 0⤊ 0⤋
sounds like you're in some major need of carb cleaner. Possibly cleaning the throttle body would help too. I doubt it would have a throttle position sensor but that might also be the problem if the first 2 don't work.
2006-07-13 08:01:29 · answer #3 · answered by sketch660 2 · 0⤊ 0⤋
well I don't know if the carb is the same as it would be on a car... I assume that it is very similar though...from what I can gather either you aren't getting enough fuel at idle... check some boat repair shops for better info
2006-07-13 08:03:35 · answer #4 · answered by linea843 3 · 0⤊ 0⤋
It's probably one of two things. The choke has gone to pot or the cold temp sensor is bad. The next thing to check is the fuel pump. The pressure regulator may be shot. Good luck.
2006-07-13 08:02:53 · answer #5 · answered by Ricky J. 6 · 0⤊ 0⤋
Your close to answering your own question. Without knowing if it is a Rochester/Holly? 1050? I can only suggest you remove the carb. Clean it and replace jets and floats.
2006-07-13 08:00:18 · answer #6 · answered by Anonymous · 0⤊ 0⤋
holley marine carb's from summit 1 800 230 3030
2006-07-13 08:00:13 · answer #7 · answered by chevyman 3 · 0⤊ 0⤋