Re: I need some help

Posted by shabbabear on Apr 22, 2008; 8:18pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/I-need-some-help-tp457448p457452.html

if you bought a new battery and it won't keep a charge then you probably have a charging problem...easy check for that...once you get it running....disconnect your brake light leads at the right h'bar and put a multi-meter on the leads with your meter at DC reading and rev the bike....volts should go to 14.2 dc max or always over 12v. that will also possibly explain that when you do get it running why it backfires...bad charging system means poor current to your coils which means poor spark which means unburnt gas that ignites in the heads or collector thus the backfire. other guys are right, start with complete carb clean..i know its money but a good dealer will have one of the ultrasonic machines like we use at our dealership and it will do 100 times better than you will ever get at home on your workbench with the old carb cleaner and toothbrush method...the best ultrasonic machines blast it with the equivalent of 3000 psi but with sound waves so no damage to delicate parts...so 1)do carbs 2) check spark with new plugs and check coil output 3) clean airbox and filter 4) have fresh good fuel and a cleaned petcock...that should get it ....except for the carbs it can all be done in a couple hours...note !!!!...if you take your carbs in to be cleaned professionally then tell them to throw in your petcock after you disassemble it they should do it for free like we do...good luck friend....shabbabear