Hi Folks,

I've got a 2005 king quad with a charging issue. To be more specific, a battery tender jr will not charge the batter while its installed in the quad. If i pull the batter out and hook it up to the same charger it starts charging. I have another battery charger which I tried to use while the battery was in the quad and it kept saying to connect the terminals even though they were connected properly.

I'm well aware of the ECU recall and my quad has had it replaced.

Anyone know what's going on or can offer some advice?

First time poster, so be gentle.

 

I don't know anything about "smart chargers" but assume a problem on the bike is fooling them into not working. Most likely cause is voltage reg, so disconnect it and see if the chargers start working. If it isn't that, it may be the ECU so disconnect it and see if that cures it. To get scientific, you can disconnect one battery terminal and put a 10amp ammeter between battery post and lead, there should only be a couple of milliamps drain with everything switched off. If there is a big drain, use the disconnect things until drain goes away method.

 

Ok, so I performed a draw test and there appears to be a small draw that goes away when I pull the fuel system fuse. When I pull the fuel system relay the draw is still present. Any ideas?

 

I would have to consult the wiring diagram, which is at work. Does seem strange that the drain is between the fuse and the relay. Do your smart chargers work with the fuel pump fuse out?

 

My apologies for not mentioning this, but the quad is now taking a charge from a tender jr. I swapped out the cord I was using that connected the tender to the battery and now it charges.

I have to replace the battery in this Suzuki every year so yeah, I'd like to solve the issue. My quad only has 155 hours on it cause it's always dead when I try to use it and I got a Kawasaki Prairie that I've had for years and I've never had to replace the battery in it. So I usually just hop on that when I discover this thing is dead.

I was consulting with my ol man's best buddy whose been a mechanic for 30 years and it stumped him too. Once I pulled the relay and it didn't go away. He thinks something else must be connected to that fuel system. I tried looking at the wiring diagram and couldn't figure it out, since I generally don't read wiring diagrams.

 

 

Thanks, I have seen this video. I thought there might be a fix that is a little more pinpointed. This will increase the voltage to the battery but if I don't use the quad for a month it doesn't fix the drain issue. Seems simple enough though and when I called to discuss the issue with Suzuki they did mention their techs adding another ground wire to the system.

I need to run a quick charge test on the machine again and write down the numbers. I thought it was charging at around 13.5 volts but I need to confirm.

 

The 700 is not the best bike for someone who doesn't use it much, because of the drain problem. Easiest way round it is to pull the main fuse on the solenoid when you lay the bike up and put it back in when you want to use it again, or take a battery lead off. I did fit the extra earth to all the 700s we maintained, and some of the 450s too. The jump from about 13.2v max charge to 14v max was instant when you connected that extra wire