Quote:
Originally Posted by viper77765
Hi all, I had my first ever day green laning and although it was a hard and very long first ride it was extremely fun.
However my bike was a little off. I had some coughing and spluttering. Pulling off was powerful but soon became flat and a little flat. I asked an other rider to ride it and he also said something doesn't feel right.
It is a gas gas ec250, 1999 running std sprocket size. 14 front and 48 rear. The carb has in 170 main and 38 pilot.
I was thinking maybe jet size.
What do you guys think?
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The problem is usually the needle selection - most use a better needle in combination with a richer pilot.
Typically - you want to be 178 main and 42-ish pilot with a yamaha or suzuki needle. This may vary from country to country due to differing fuel characteristics. Are you running a good premium fuel?
Also, given the age of the bike - it wouldn't hurt to check the reeds and replace them if needed.
jeff