Just Noticed a Different Noise from my Ryker Sport 900 When Shutting Down - Any ideas what it might be?

[gbyoung2]

A couple of weeks ago, I began hearing a noise I hadn’t noticed before.

As per normal, when I go to start my ’22 Sport 900, I flip the start switch to RUN, poke the start button, and you hear what sounds like the fuel pump kicking on for a few seconds. Then I apply the throttle in reverse, hear a beep, push and hold the brake pedal down, depress the start push button, and the engine starts.

When I shut the bike down, I turn OFF the RUN switch, the engine stops, and this is when I hear a noise like another motor running (different noise than the fuel pump). The noise is coming from an area that sounds like the top RH side of the engine (when facing the bike). It runs until the bike’s electrical system times out and everything shuts down.

I just got back from a 1500 mile trip and the bike ran perfectly.

Any idea what I’m hearing?

 

[Fvee3]

The only thing I can think of is the cooling fan.

 

[gbyoung2]

Appreciate that, but it's not the fan(s). I suspect it's the starter. For some reason it's not having power removed from it after the engine actually starts. Just what tells it to have power cut, I'm not sure. Some engines use oil pressure. Once the system sees pressure building up, the starter is disconnected. I'll have to dig around and see what ain't doing what it's supposed to.

 

[Fvee3]

Could the starter relay be sticking or the starter button until the power shuts down?

 

[nightfalcon]

starter relay perhaps?

 

[gbyoung2]

I'm going to dig into it tomorrow with a meter to see if I can figure out just what is staying on, and why.

 

[gbyoung2]

I'm going to dig into it tomorrow with a meter to see if I can figure out just what is staying on, and why.

Well, it wasn't the starter. After thinking about it last night, I kinda ruled that out beforehand.

Looking at the fuse box cover, I see a relay labeled VCM Pump. Can only assume that stands for Vacuum Pump, but I have no idea where that is physically located. Going through the shut down and I'm hearing the noise, I tapped on the relay, but whatever was running continued until the system timed out. So, we're still looking.

 

[Fvee3]

How about the Throttle Body Actuator that is right behind the cvt air filter.

 

[Snowbelt Spyder]

Well, it wasn't the starter. After thinking about it last night, I kinda ruled that out beforehand.

Looking at the fuse box cover, I see a relay labeled VCM Pump. Can only assume that stands for Vacuum Pump, but I have no idea where that is physically located. Going through the shut down and I'm hearing the noise, I tapped on the relay, but whatever was running continued until the system timed out. So, we're still looking.

VCM = Vehicle Control Module. In other words, the ABS pump. I know that you disagree, but I also think that’s it’s just the radiator fan.