Quote:
Originally Posted by caineroad
when choke is on and steady, the rpm is 4-5k. Normal idle speed is around 1500
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Your rpm speed is too high with the choke on. Your starting difficulty is due to your choke being too rich. By turning the throttle, you open up the butterflies, that allows more air in to help with the rich choke mixture. That's why you are able to start it.
Ideally it should be under 3k (manual says 2.5K) You should check to make sure you have enough free play in your choke lever (2-3 mm) at the bottom of the choke lever. You can also reduce the amount of choke you use to start up too, if you don't know how to adjust your cable.