Very slight difference when running 2005 or 2007. With 2005 map the trouble starts a little bit quicker....gets hot quicker? But i'll have a try with 2006 map soon...

Check the charging coil, heat it up and see if it has affect on the resistance. My bike started to misbehave when one of the wire broke loose from the center of the coil.

EC 250 2001, FSE 450 2004

Just came from a ride and measured stator resistance and everything was ok.
Rode today with 2006 MAP and changed CO-trim while riding up/down from default value and not much difference.
I'll check tomorrow one thing that i think might misbehave...i'll let you know how it goes :)

So...little bit soon to cheer, i think, but i might have fixed my bike. I'll try to test one more time on wednesday, but yesterday the bike rode fantastic!
As you remember, then i have changed most of the parts already. One day i was out of ideas and took the original TPS apart.(not really meant to be opened.... ) Cleaned the tracks with alcohol and glued it back together. Put it in place and adjusted TPS.... And....i think that helped.
I dont know why bike didn't like the replacement TPS...measured with multimeter and all the values seemed more or less the same....
So yeah, it was nice to ride on forest trails and not worry about the bike....had forgotten already how the bike felt when all is working okay.
Will let you know if it really is fixed now :)

Yeah, seems that cleaning the TPS worked. Yesterday was also fun to ride without bike acting up :)

Congrats

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Please explain to the dummy - what is TPS? Are you talking about Throttle Position Sensor ?
I own GG EC 450, 2005 for a few month - when I've tested it before buying, everything went well...however, after few ridings it has started to misbehave - it is hard to start it, when hot. So maybe the problem is similar.

Thanks!

Hi,

Yes, TPS is Throttle Postition Sensor :)
Have you checked the valve clearance also?

Hi,

Thank you!!! No, I did not check yet. The bike started to act like I've said suddenly, so I firtsly think that the prolem can be of electrical nature. Also, after some reading in this forum I've found out, that many things can cause problems with starting, thus, I want to check what I can do by myself (check connections, etc.). BTW, could you possibly now: I've changed the spark plug to the new one (NGK CR8E) and after ~ 5 hour of riding I've foud out, that it is black. May this be a situation causing problems with starting? Should I install the new spark plug, like CR9E. As the manual says:

"To find the correct heat grade spark plug is being used, take it out
and examine the insulation around the electrode. If the ceramic is
light brown, the spark plug is correctly matched to engine temperature.
If the ceramic is white, the plug should be replaced with the next
coldest plug. If the ceramic is black, the plug should be replaced
with the next hottest plug."

Have you ridden the bike "good"....i mean, little bit more gas than idle :D
The plug gets black pretty easy when riding at idle speeds.
If you have used the throttle more then i would start checking other things...seems like running too rich.
TPS could be the issue BUT the injector can be also the problem!
I think my problem was caused by two things....worn/dirty TPS and injector.