Stalling engine 501

Cheesehead · Sep 4, 2008

Sometimes my engine (501 / 03) stalls when opening the throttle from low revs. When the revs are a little bit higher there is no hesitation at all. This is fairly new, I never changed anything on the carb settings; simply because I had no reason to do so. What do you guy's recon? It always starts, cold or warm, on the first push of the magic button, and the ride is still fantastic with loads of power!

kez · Sep 4, 2008

What carb? Dellorto or FCR? that would help as each suffers from their own quirks.

Cheesehead · Sep 4, 2008

Yep, forgot to mention that; it's a Dellorto with the famous SEM ignition...

berger · Sep 4, 2008

Worn needle and needle jet??

ned37 · Sep 4, 2008

like berger said.

Taffy · Sep 4, 2008

what is your pilot jet dutch?

i used to get over it by raising the needle by a clip.if it has suddenly happened then this is a good way to get over it.

have you ever strobed your ignition timing with the new mark?

regards

Taffy

Cheesehead · Sep 4, 2008

Hmmmmm, seems like I have something to do this weekend... Yes it could be a worn needle and needle jet, my bike has about 14000 km's on it without any change on the carb. I'll have a good look at that.
@ Taffy, I'll have a look at the height of the needle, and no; I didn't strobe anything.

Thanks for the input, I'll give a report on Monday!

Have a great weekend!

Taffy · Sep 4, 2008

you have a PM

Stalling engine 501

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