Question about Motorcycles
Carb rebuilds are extremely sensitive to being set correctly. If when you accelerate you say it seems to choke out, slightly close the choke or place your hand a small portion over the carb to see if there is change for the better because it sounds like it is leaning out. The float level is so, so crucial for a successful rebuild. If by choking it make is take the fuel better, the float level is too low so check it again. If it make matters worse, there is a problem with the overall rebuild. You must make sure everything is clean and all airway and passages are unrestricted. A simple misplacement of a gasket can cause unbelievable issues. Use a suitable solvent to soak the parts in.
Make sure that the fuel is flowing freely from the tank. There is a screen before the petcock. If the fuel seems restricted, remove the petcock and clean or replace the screen.
Posted on Mar 29, 2015
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Posted on Jan 02, 2017
hello and welcome
this is a very very commom problem after the cycle has gone over a storage period of anything over a month or so. what has happened is the deteriorated fuel has plugged the idle jet, and possibley other jetting. this is verified by pulling out the choke allows it to run. because this makes of for the loss of fuel the jets are not produceing. so to fix this you will need to remove the carbs and take out the jets and clean them thoroughly with a carb cleaner and possibly a very small gauge wire to break up builup. especially in the pilot jet. unfortunately fuel added carb cleaners dont seem to work for this kind of problem and to fix right they should be disassembled and cleaned thoroughly. thank you.
Posted on Mar 22, 2009
SOURCE: engine only runs with choke on
dear honda 750 your problem is a pluged main jet you must completley disasseble the carbs and give them a good cleaning with carb cleaner and comp air visually check to make sure you can see light through the jets after cleaning. your choke system by passes the jets that is why it runs on the choke setting only. hope this helps jim
Posted on Apr 12, 2009
First Make sure you have all new fresh gas,and new fuel filter,Then check the intake tube between the head and carb for cracks or leaks,And You'll need to go back through the carb again as this is a carb issue,But without doing the above first,a clean carb won't be clean for long.
Posted on May 17, 2009
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