Running rough and hesitation on acceleration

alexmac

Been Around the Block
I went riding today and my bike is running kinda rough.
It's fine when it's idling. When you accelerate it feels like it is hesitating and rough. Instead of Whaaaaa/Whaaaaa/Whaaaa ... it's Whaaa_cough_aaaa/Whaa_cough_aaa_cough__aaa.
Overall, the engine just feels rough. It was so bad today, I turned around mid-ride and headed back.

I immediately removed the plugs and this is what they looked like.

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They look pretty black. One of them is blacker than the other.

I am not sure what to do to fix this.
 
The one on the right in the top picture looks a little rich. When is the last time the carbs were thoroughly cleaned?

Stock is a great place to start. Much easier to trouble shoot when nothing has been changed.
 
Check timing and compression before messing with the carbs. It's faster and easier and problems with timing or compression can mask fueling issues.
 
Sonreir said:
Check timing and compression before messing with the carbs. It's faster and easier and problems with timing or compression can mask fueling issues.

Will do.. thanks.
 
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