55 Aerox Posted September 28, 2009 Posted September 28, 2009 Hey. ive got a 2003 yamaha YQ50 aerox. its worked fine and had new reed valves and piston rings about 5 months ago. i recently installed neons on the moped. they have a switch to turn them on and off on the negative wire leading to the batery. the other day i left my full beam lights on all night (although with engine off and no keys in ignition) and came out to a flat battery. it started on the kick so i took it out for a blast to give the battery a good charge. after driving for about 20 mins to the shop, the electric start still didnt work, it moved the starter motor but not fast enough to fire. how ever it did start on the kick. i got home to drop the shopping off. was indoors for about 5 mins. i came back out and still no electric start (again started with kick first time). i went to pul off and i got about a meter and the bike died. all power went (but the break lights and indicators still worked [as they normally would with the ignition on but enging off]) i pulled onto a drive way, got off the bike and put it on the stand. again the electric start had power, but not enough joice to start. but once again first time on the kick. i reved it again and it died. tried for a third time and same result. i took it to my drive and left it for a good 10 mins on idle and it was fine, as soon as i reved it it died. ive been told it could be a dirty carb and jets by a more mechanically minded neighour. i however am 16 and dont really knwo what this. i know what a carb and jets are and what they do, just not exactly where or how to get them out. so firstly any ideas of what the problem is? and and step by step guides to removing the carb? Thanks alot (this is my first post, lets make it a good one!!)
Steven G Posted October 1, 2009 Posted October 1, 2009 Hey. ive got a 2003 yamaha YQ50 aerox. its worked fine and had new reed valves and piston rings about 5 months ago. i recently installed neons on the moped. they have a switch to turn them on and off on the negative wire leading to the batery. the other day i left my full beam lights on all night (although with engine off and no keys in ignition) and came out to a flat battery. it started on the kick so i took it out for a blast to give the battery a good charge. after driving for about 20 mins to the shop, the electric start still didnt work, it moved the starter motor but not fast enough to fire. how ever it did start on the kick. i got home to drop the shopping off. was indoors for about 5 mins. i came back out and still no electric start (again started with kick first time). i went to pul off and i got about a meter and the bike died. all power went (but the break lights and indicators still worked [as they normally would with the ignition on but enging off]) i pulled onto a drive way, got off the bike and put it on the stand. again the electric start had power, but not enough joice to start. but once again first time on the kick. i reved it again and it died. tried for a third time and same result. i took it to my drive and left it for a good 10 mins on idle and it was fine, as soon as i reved it it died. ive been told it could be a dirty carb and jets by a more mechanically minded neighour. i however am 16 and dont really knwo what this. i know what a carb and jets are and what they do, just not exactly where or how to get them out. so firstly any ideas of what the problem is? and and step by step guides to removing the carb? Thanks alot (this is my first post, lets make it a good one!!) I'm not an expert on bikes, but could give you my opinion! I think that it may be the spark plug possibly, and it's just coincidence that its when you installed lights onto your bike. I had this problem, and had to take the spark plug out and clean it (Yamaha Jog RR). Sometimes the bike would ride fine, and sometimes it would stall, and hesitate about moving when normally riding along, and had problems starting the bike. The other problem could be the alternator is not charging the bike properly, either due to a dodgy alternator, or the battery could be dead, as it is potentially 6 years old, and if it was flattened fully, this could damage it, however I can't see why it would. Have you also tried the bike without the neons copnnected up to the battery?
55 Aerox Posted October 5, 2009 Author Posted October 5, 2009 All Fixed Turns out i had a faulty battery and a blocked carb. all fixed now
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