rosedale Posted August 11, 2008 Share Posted August 11, 2008 Hi can any one help diagnose an electrical problem with my sons Yamaha Jog (50cc) scooter ? The main beam headlight works fine but when he dips the beam, the headlight and side lights completely turn off. As far as I can tell the bulb is OK and the handlebar switch is OK. Is there a fuse or relay on this circuit somewhere ? Any advice would be appreciated as the bike is due an MOT ! Thanks Graham Link to comment Share on other sites More sharing options...
Moderator drewpy Posted August 11, 2008 Moderator Share Posted August 11, 2008 Hi can any one help diagnose an electrical problem with my sons Yamaha Jog (50cc) scooter ? The main beam headlight works fine but when he dips the beam, the headlight and side lights completely turn off. As far as I can tell the bulb is OK and the handlebar switch is OK. Is there a fuse or relay on this circuit somewhere ? Any advice would be appreciated as the bike is due an MOT ! Thanks Graham as far as you can tell? you need a multimeter and check volatage and continuity of lamps! Link to comment Share on other sites More sharing options...
rosedale Posted August 11, 2008 Author Share Posted August 11, 2008 as far as you can tell? you need a multimeter and check volatage and continuity of lamps! The bulb has certainly got continuity on both terminals as checked with a meter. Link to comment Share on other sites More sharing options...
yoda Posted August 11, 2008 Share Posted August 11, 2008 You must have a faulty switch or connecting block. Try disconnecting and skirting with wd40 see if that helps. You might be able to get some in the switch. Another thing to do is exercise the switch to clean the contacts. The fault must be close to it. Link to comment Share on other sites More sharing options...
fosdyke Posted August 11, 2008 Share Posted August 11, 2008 You must have a faulty switch or connecting block. Try disconnecting and skirting with wd40 see if that helps. You might be able to get some in the switch. Another thing to do is exercise the switch to clean the contacts. The fault must be close to it. Sounds like a switch problem to me - thoroughly check and clean the contacts and try again. Link to comment Share on other sites More sharing options...
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