due to problems with my bike, i may need to succumb to getting my carbs cleaned professionally. i don't really want to pay $100+ so as a last ditch effort to avoid that option, i pose this question: if i squirted some carb cleaner into the pilot jets (while still screwed in its passage) and the cleaner passes through, does this tell me that they are not clogged? furthermore, does this tell me that my pilot jets should have no problem passing fuel through, enabling me to start my bike and not die at idle?
also, is taking out the pilot jet crucial to getting it thoroughly cleaned? or can i just leave it in its passage and squirt some cleaner into it until it's passing the cleaner through?
with my difficulty in starting the bike unless i have the choke or throttle open, i've narrowed the culprit down to the pilot jet. answers to my questions would be extremely helpful! and 1 more thing, if anyone can provide me with a technical explanation of how fuel goes from the carbs into the engine when you start it up (ie. the route it follows), that would help me as well!!!