With my luck, if the intake valves were open, the shop vac would suck in just enough fuel vapors to meet up with a spark in the shop vac and create a nice little explosion. I thought that maybe it would be better to remove the header, position the piston just below that and then use an air compressor through the spark plug hole to "blow" out the debris. With my luck, that would just wedge the dirt tighter between the piston and cylinder. Maybe I'm thinking too much...

If the dirt was not large, sharp grains of sand, I would just start up the engine and let it blow out the exhaust. If you do decide to do that Frog, and it scratches the cylinder, please don't blame me. It's what I would do, I'm not saying that's what you should do.

You could always take the engine apart and clean it. And, as long as you have it apart, you can go Big Bore and check the valve clearances...

 

That is as luck would have it Eh?I'd almost pay to see it tho...LOL

 

I would also just cross my fingers and start it... What's done is done.
Only way to get that dirt out properly is to take apart the engine - at least the top end.
No fun. Just ride it, and rebuild it when she decides not to run anymore.

 

That's what I'd do, every problem presents an opportunity.

 

You guys are the greatest!!!! I didn't know how I was going to present this, but now I have it!
The conversation should go something like this.........
Gee honey, I was just changing my spark plug and some dirt fell in the hole. So, not wanting to trash my engine and cost us major dollars, I removed the head so that I could clean it out. Once I got the head off I found that the top of my piston was all black and yucky. Guess it's a good thing that I needed to clean it, huh?
So I couldn't clean the black yucky stuff off so I got this new shiney piston, and I must be living right because it came with a new cylinder and gaskets! How's that for good luck?
Then I saw that these old cams were worn in a off shaped circle so I had to replace them too. Actually it's a real blessing that I droped some dirt in my engine. Who knows what bad things could have happened?

What do ya think? Will it fly?

 

I was thinking that whatever hose was used to insert into the cylinder through the spark plug hole would not actually make an airtight seal. I figured you might want a little room to move the hose around a bit and suck out any grits.

 

With the number of bikes that you currently have in the stable, I suspect that your wife would know better.

With me, I can count on spending the same (or more) amount of money that I spent on the bike on something that will make my wife more stylish, smelling better or more beautiful. You know those suspension parts that I'm getting from moto-pro? ...it's represented by that new swiss watch on my wife's wrist.

Somehow this equation seems lopsided: 2007 KLX250S = 2008 Lexus ES350

 

Have you ever tried the argument: "But Dear, you can't get any more beautiful that you already are!"
I've tried similar statements, but after 30 years of marriage my wife knows all of my tricks!

 

LOL.....thats good vfr lol

 

I don't have a wife, am I missing out on something?!