2004 FE550 stops when hot

gtf · Aug 23, 2014

Hi guys,

I have been having problems with my FE550 2004 for some time now so that the bike stops when hot or chokes if hot and using a lot of throttle in sand or uphill.
So far I have changed the stator, pulser coil, ignition coil, spark plug connect and checked the fuel cap for venting.
According to what advice I have gotten so far the only thing left to check would be the CDI unit but now I was just told that the valves might need to be adjusted.

Any suggestions on what might be causing this or what is most likely? All help apreciated as this is starting to be annoing.

Thanks,
Geir

jimmythehat · Aug 23, 2014

How hot we talking? Boiling over?
Does the bike start easily from cold?
Will it restart after 'choking'?
Will it idle when hot?

gtf · Sep 5, 2014

No not boiling, initialy it died after approx one hour ride and gradually it was less and less time until it died, now it is just after few minutes. I let it cool for 2-4 min and then it starts without a problem but then dies again few min later. Now I had the valves adjusted and it came out worse as i start the bike and it died before even riding it.
So when hot it does not idle, just as soon as i pull the clutch is shuts down.

husabutt · Sep 5, 2014

I think its time to completely disassemble the carb and make sure every vent hose (maybe purchase all new vent hoses) and orifice is clear and unobstructed. Clean out all the jets and set the float height to spec.

If the bike has ever been put away wet (gas in the carb) for a period of time then it only increases the chance that something is blocked (and seems to be getting more and more blocked every ride).

The pilot jet plugs up almost solid real easy on the FCR carb. Use a torch cleaner to push the crud out.

edelweiss · Sep 6, 2014

mine does this too, because water enters combustion area. does your bike smoke when hot, especially when you accelerate or brake using motor? or even more when you start it after the break to cool it down? if yes, change head gasket, if that deos not help, your sleeve sits low in the cases and you need to rise it somehow, e.g. by putting thin Alu ring (washer) under it (cut from some soda or beer can).

Taffy · Sep 6, 2014

probably the valves aren't seating. get the head off and have all the valves faced and seats cut.

then at the same time re-jet. get one of my jetting kits that are leaner than the rich settings.

it'll be one or the other so get them both.

Taffy

gtf · Sep 6, 2014

Thanks a lot for the feedback guys, I will clean the carb and look into re jeting!
It has been standing for a period of time here and there so that might be a problem.
I have not noticed there is any smoke coming out of the exhaust.

Will come back with results

gtf · Oct 3, 2014

Hey guys, so finally i found the problem when I took the carb out.
The rubber intake boot from carb to the engine was torn quite a lot under the clamp. Replaced it and cleaned the carb and now the bike is back on track

Thanks for all the help and suggestions!

tourist · Oct 3, 2014

Mjög gott! congrats

husabutt · Oct 3, 2014

gtf said:
and cleaned the carb and now the bike is back on track

Was the pilot jet or anything else plugged ?

gtf · Oct 4, 2014

I had a friend clean the carb and he said it was just small amount of dirt in it. He did not make any adjustments to the jets or float but told me to adjust the pilot jet to get more fuel when starting.

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2004 FE550 stops when hot

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