vf500 running on two

hey guys need a little help here. had the bike running 2 days ago after rebuilding the carbs. was running fine and now........... it's only running on 2 cyl. front 2 not firing. back 2 are. bike has a brand new fully charged battery. also noticed that the head light went out . checked found the fuse was blow. have not done anything with the elec. system. :frown: what should i look for. i have manual and a metter.

 

Check the forum above your forum

Hey

There is a man with a Forum called Hard starting VF700.Same problem check it and read it all.If that doesn´t help then send message in again.

Best regards

Gunnar

 

And now I see that you have post there yourself.So upppsss

 

my cdi boxes work his don't. just looking to see if anyone else has had the problem of the bike running on 2 cyl. already did a search but did not get through all of them yet. my bike has new plugs, fresh fuel, new air filter,new fuel filter.

 

Hey

Okay,then do this

Take the plug 2 or 4 out put your finger in the hole start the bike if you get gasoline on your finger then it is the ignition.Then work from spark plugs and forward but end with the CDI units (spark units) because that is the only thing that cannot be mesured.Try swithing the coils and mesure the spark wires.I had the same problem then it was the spark unit 1&3 was not giving signal to 2&4 unit.Mesure the pulse genator just the wires witch come out of the engine when engine is warm you should mesure 480-490 ohms (don´t remember the exact ohm number but it should be in the manual).The coil´s should be mesured 7 ohms where the wires from spark unit come in (should be ware if those wires are crossed you will have the problem witch you are having now).Then mesure the spark wires should be around 5 kohm if they are origanal change them don´t need to mesure there is a little resistor inside the cap witch connects to the spark plug.Before you begin with all this take the spark plugs dive them in gasoline and light them.Then you are good to start.Don´t care if they are new if they get wet they will be a problem.
If you don´t understand something in this text just ask.

Good luck

Gunnar

 

Just in case

Hey

If the other information are not enough here is a website witch help me allot:http://users.rcn.com/kochc/moto/spark/ig_repair.html

Best regards

Gunnar

 

well check the info you've given me. thanks for the web site explans alot,this is the stuff that should be in a honda manual.