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2005 Wee won't start! Just loud short buzz

1K views 8 replies 4 participants last post by  Martin 
#1 ·
Hello,

First nice day in about a month and my K5 Wee won't start! :confused:

I just get a loud short buzz (from the relay?).

Battery shows 12.7v (was on a Yuasa battery tender all winter), fuel pump pressurizes OK, lights are bright, no codes.

I last rode it about a month ago and it was fine... haven't touched it since then and now I just get the short buzz of death when I hit the start button.

The battery was replaced last year and is an exact OEM replacement (Yuasa).

TIA,

Martin
 
#2 ·
I would check the contacts on the starter switch, but it could be a bad connection or ground in several different places. Not sure about a buzzing relay, maybe clicking if you're battery was drained but 12.7v should be fine.

You're just going to have to do a thorough once over. The process of elimination can be quite the process (hence the name), but it certainly works!
 
#3 ·
I think the relay is OK... I was able to start it by boosting the battery.... it started right up. Charging system seems OK... the voltage while running was about 14.4v.

I then stopped the bike and tried restarting with just the battery... just the loud short buzz again. I think it's the battery.

No riding for me this weekend, I guess. :furious:
 
#4 ·
It takes volts and amp to crank the engine. A bad battery can have the volts but be missing the amps.
 
#6 ·
Problem found!

It was a loose battery connection! :headbang::headbang::headbang:

I went to pull the battery and the negative terminal screw turned way too easily. :confused:

I tightened it up, hit the starter button, and the bike fired up. :hurray::hurray::hurray:

With the loose screw, there was just enough current getting through to power up the lights and FI etc but not enough to turn over the starter.

Looks like I'll get out for a ride tomorrow after all! :hurray:

Thanks for the help anyway,

- Martin
 
#7 ·
It was a loose battery connection! :headbang::headbang::headbang:

I went to pull the battery and the negative terminal screw turned way too easily. :confused:

I tightened it up, hit the starter button, and the bike fired up. :hurray::hurray::hurray:

With the loose screw, there was just enough current getting through to power up the lights and FI etc but not enough to turn over the starter.

Looks like I'll get out for a ride tomorrow after all! :hurray:

Thanks for the help anyway,

- Martin
If only someone would have mentioned that. :mrgreen:

I would check the contacts on the starter switch, but it could be a bad connection or ground in several different places. Not sure about a buzzing relay, maybe clicking if you're battery was drained but 12.7v should be fine.

You're just going to have to do a thorough once over. The process of elimination can be quite the process (hence the name), but it certainly works!
 
#8 ·
That's unusual. A loose connection usually zaps the contact area and makes everything go dead.
 
#9 ·
I had actually tried to wiggle the wires by hand earlier yesterday and they seemed firmly attached... which is why I didn't clue-in right away... but apparently hand-tight isn't tight enough.

Here's an idea... maybe someone here could create a "Bike Won't Start" sticky and put all the common reasons there? :thumbup:

IMO the #1 probable cause should be "Loose Battery Connection". :mrgreen:
 
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