Only running with choke on actually indicates a lean condition, the choke blocks off the air making the mix richer, open will be leaner 10 reasons why riding a dirt bike is always an exhilarating experience I did need to include after my early comments, that the reason it stalls when the throttle is opened up quickly is because of the lean condition and the fact that going from idle up to about 1/4 throttle includes the transition from the idle mix circuit to.
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I am helping everyone fix a issue that is very common why your bike will only run with the choke on your carburetor i hope this helps everyone out
Many motorcycle riders complain about how their motorcycles can only run with a choke on
Read this article to learn why your motorcycle only runs with a choke attached. The choke changes the air/ fuel ratio to adjust for the cold Just leave the choke on longer, half choke or whatever If the roads are clear, go ride on the 1/2 choke for a bit, and you'll see it likely also helps with driving performance
After the engine is warmer, you should be able to turn the choke off without problem Dirt bike only runs on choke
