What is this hole in the side of my bike?

[WildGuzziNicholas]

The bike is a 2007 Nevada 750
I was trying to remove the plug and accidentally popped the rubber plug inside the case. I tried using a bore scope to find the plug but it's no where to be found. Could this cause a issue if I continue to ride it? What would you recommend doing to retrieve the plug? Thanks.

[drdwb]

The hole allows you to view the flywheel and I think clutch plate, it where you look to set the timing. Lots of spinning parts in there to gum up. I wouldn’t leave it in there, and I wouldn’t put the transmission in gear or try to drive the bike until it’s out of there. But that’s just my opinion. Others may not agree, but you’ll want to plug that hole so no water and crap gets in there. Good luck, it’s like losing a guitar pick in the sound hole, but this could seriously mess up your bike.

[Wayne Orwig]

The flywheel will shred it. The rubber dust won't hurt a thing. It is to view the timing marks. But you really never need to view them. So, get a replacement plug and don't worry.

[moto]

I agree w Wayne. Part number GU93180220. MG Cycle has it in stock.

[Dirk_S]

I’d just flip the bike over and give it a good shaking until it falls out.

[WildGuzziNicholas]

Thanks for the replies and suggestions!

[Pescatore]

What a coincidence. I just did that last week by pushing too hard while putting the plug back on.
I was lucky to find it with a borescope.  I grabbed it with an extended gripper.
I was considering leaving it in there as well.
As others already said, the spinning clutch will throw it around and will likely sit at the bottom of the bell housing. That's where mine went, but I didn't start the engine.

[John A]

You can take the starter off to get it. The only time I've seen a problem with leaving it is on early EV with the sensor in the bellhousing. The hardened rubber can hit the sensor and destroy it

[jrt]

You could try fishing it out with a rubber magnet.   Otherwise... as Wayne says- it won't hurt anything.

[WildGuzziNicholas]

You can take the starter off to get it. The only time I've seen a problem with leaving it is on early EV with the sensor in the bellhousing. The hardened rubber can hit the sensor and destroy it

Tried finding it via the starter and using a bore scope but couldn't find anything

[Pescatore]

It's probably inside the clutch bell/cup.  Turning the engine by hand might fall out.
Or spin the engine a few cycles without starting it and it might get thrown out.
Otherwise, forgetaboutit.

[johnpaulcim]

Did the same thing on my 2013 V7 years ago. I fretted about it for a while, then decided that it would just get chewed up into oblivion by the gears and there was nothing in there that it could hurt. A couple years and thousands of miles later, I had forgotten all about it till I read this thread....

[Luap McKeever]

Had that happen to me with a 98 EV. I left it in there. Eventually, the flywheel grabbed it and threw it up to break my sensor, rendering my bike broke down until I replaced that sensor. I think they've moved that sensor to a better location in the later models though.

[faffi]

My first thought was WTF, leave it in there, risking clogged oil passages? Then I remembered it runs a dry clutch. First bike with a dry clutch I have owned in 45 years of riding.