12-09-12, 08:26 PM
The buzzing noises are the relays chattering due to insufficient power to hold them up. First thing to do is charge the battery fully with the proper charger (I use an optimate) and while it is charging do the following easy checks. Under the seat disconnect the starter relay; this is the four wire connector next to the fuse. Check it for corrosion, clean it and give it a squirt of WD40 into both sets of connectors. As you are there pull the fuses in turn and check those for corrosion also and a squirt of WD40 will do no harm.
Next lift the tank and prop it with a length of wood or something about a foot long.(something non metallic is best as it will not damage the paintwork and tank near empty is easier to lift). Now open the box with all the connection in it. Take each one apart and spray them with WD40. There are known issues of corrosion in some of these connectors. Even though the connectors blocks are coloured coded do it one at the time if you are not used to doing it.
Close the box and reseat the tank.
When the battery is fully charged replace the seat. Wait until dark to start the bike after starting do not rev it until you first switch on the lights. Switch on the lights and watch carefully the brightness of the lights. Now rev the bike to around 5000 rpm as this it point where the max charging starts. The lights should increase slightly in brightness. If they increase in brightness the charging system is working, if they don’t it is not charging. While this is not a perfect test it is a simple one for someone who does not have the necessary tools for checking the charging. Leave the bike overnight and if you have problems starting in the morning than the battery is the most likely suspect and would need replacement. The Fazer electrical system is generally very reliable and corrosion is its biggest enemy. One exception is probably the plug caps loosening on their leads but this is a design issue rather than an electrical.
Next lift the tank and prop it with a length of wood or something about a foot long.(something non metallic is best as it will not damage the paintwork and tank near empty is easier to lift). Now open the box with all the connection in it. Take each one apart and spray them with WD40. There are known issues of corrosion in some of these connectors. Even though the connectors blocks are coloured coded do it one at the time if you are not used to doing it.
Close the box and reseat the tank.
When the battery is fully charged replace the seat. Wait until dark to start the bike after starting do not rev it until you first switch on the lights. Switch on the lights and watch carefully the brightness of the lights. Now rev the bike to around 5000 rpm as this it point where the max charging starts. The lights should increase slightly in brightness. If they increase in brightness the charging system is working, if they don’t it is not charging. While this is not a perfect test it is a simple one for someone who does not have the necessary tools for checking the charging. Leave the bike overnight and if you have problems starting in the morning than the battery is the most likely suspect and would need replacement. The Fazer electrical system is generally very reliable and corrosion is its biggest enemy. One exception is probably the plug caps loosening on their leads but this is a design issue rather than an electrical.