jetting question

I made my leak down kit for less than 50 bucks. I will try and take some pictures later.

I already had the fork pump.

A low pressure gauge with 1/8 NPT male thread. A Schrader valve with a 1/8 NPT male thread. A scrap piece of alloy bar. One end turned to mimic the Mikuni carb end. A small hole through the middle. Tap a 1/8 NPT thread into one end for the gauge. Drill another hole at 90 degrees to meet the centre hole. Tap the end 1/8 NPT to accept the Schrader valve. The rubber cap is from an aquatic store, designed to cap off fish tank pipes. Just leave the spark plug in place.
The whole lot from fleabay (except the pump) cost less than 50 dollars. Let the carb and exhaust swing out of the way (I didn't even remove the tank). With this set up it also tests the reed cage and inlet manifold, along with the exhaust stub. I tested mine with the piston half way down the bore so that all the ports are open.

pretty nice grouty, thanks..I saw another here somewhere with plugs in the intake and exhaust and a spark plug tire pump inlet...with the piston exposing the ports and case of course...like I'd NEVER goof that up, haha.

a professional mechanic I was visiting recently said to check the vacuum as well...some means of pulling a vacuum and a valve to close it off in both pressure and vacuum t5o try and take the pump and plumbing out of the path...tearing down an engine because the tire pump leaked, well...haha, I'd NEVER be dumb enough to do that..almost NEVER.

althjo it's been talked about here before, I wonder if this topic should have it's own thread as this was the very related jetting question..glad I'm not the moderator..

so I searched (who's a good boy?)

and there were four that turned up the word 'Vacuum'...and Jimspac's comment is to be read on the subject:

http://www.cafehusky.com/threads/87-wr-250-wont-start.35405/#post-341079

and another "Can anyone tell me me how to do a leakdown test?"
http://www.cafehusky.com/threads/can-anyone-tell-me-how-to-do-a-leak-down-test.34965/#post-334602
in which 86 400XC and Ron talk about both pressure AND vacuum testing setups.

that was just from the "vacuum" search..'leak down test" will have more..yay for 'search' function!