With had starting; check fuel float level and fuel air mixture setting
with speed ; check carbs piston diaphrams and its movements up and down
SOURCE: bike wont run when choke is at half way setting
Sounds a lot like fouled fuel jets in your carb; you may have a little work to do.
If the jets do not allow sufficient fuel to pass, using the choke can 'cheat' the carburetor by restricting the flow of air and restoring the fuel-air ratio.
You can't ignore this problem since the 'cheated' condition does not let the engine develop the power for which it was designed.
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
SOURCE: SPUTTERING WHEN HOLDING 50-60 MPH
Since it ran fine before you "fixed" it, go back over the things you changed. Put the old spark plugs back in it. Double check all spark plug wires and ignition connections. Put the bike in a dark area and run it at night, can you see any arcing anywhere?
SOURCE: starts and stays running with choke on. stalls
Pay special attention to the parts in red. DO NOT mix parts from the front carb with parts from the back carb. When removing adjuster screws and jets, count the number of turns to remove them, write it down, and replace with the same number of turns.
Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx
Go to this site and you can download a free PDF service manual.
www.carlsalter.com/motorcycle-manuals.asp Most all of the manuals are in English but some are not. There is no way to be sure without doing the download. You can always delete it if in a foreign language.
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SOURCE: magna engine surges
The carbs may need to be cleaned. Try running seafoam in the tank first and see if that clears some of it up. The slow jets may be plugged up inside the carbs. If the snorkel had been removed from the airbox, it could cause siminlar problems as well. have you changed the spark plugs yet? be sure to check out the Honda Magna forums for more info:
http://forums.delphiforums.com/MagnaRiders
http://www.magnaownersoftexas.com/forums/
http://v4hondabbs.com/
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i just went to start it and it wants to die out until something warms up
i was incorrect, is does not start, only after choking it on and off even when its warm. average time to start it is about 15 min. even then it still runs doggy
thanks ray for info, just had carb pistons replaced and the rest is being checked out.
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