DIY Two Stroke Leak-Down Tester and Testing the YZ85 Engine

I was having a spot of trouble tuning the YZ85 so I cobbled together a leakdown tester to check for leaks. (Found a couple)
Tees & Stickers:
teespring.com/...
Music
Outro
Retnik Beats:
(www.youtube/c/...)

[@stevenn8449]

Simplest tutorial I've seen yet. No over-complicated setup, just a few bits and pieces and you've got a functional leak down tester for not much money. Thanks for the great info!

[@GarageAddiction]

Glad you liked it!

[@kerryyeroyan8212]

Good job on the video and way to be creative. One bit of advice, if you keep your thread tape on the roll instead of tearing it off and roll it in the opposite direction that you did, it won’t have a tendency to unwind when putting fitting’s together!

[@ashbridgeprojects6916]

Shopping list: FYI, the exhaust plug is called a "drain test plug" mine was 40mm or 1.5".

[@AutoBeta2T]

Just what I was looking for - thank you.

[@JWhit-bb3nu]

Very helpful video. Thank you!

[@GarageAddiction]

Glad it was useful!

[@AndrewBoundy]

Excellent. I have seen a few homemade ones - yours is very elegant in its simplicity. The fitting with the Schrader vve on it is absolutely perfect as was the plug (40 and 50mm) - I found all on Amazon. The $270 kit from MP will thus be built for $21 plus a PVC male to plain nipple (with a bush for different applications). More channel genius - thanks again! I'll look for a bulb type inflator (bit less aggressive) and a stethoscope (both from a blood pressure cheapo kit on amazon) to complete my system - the box will cost more :-)

[@GarageAddiction]

Glad it helped! I've used it on a few builds so far with just a little electrical tape adjustments for boots

[@thomasmoonan7040]

What did you search for to find the fitting with the Schrader valve and pressure gauge?

[@swonn9435]

anyone got tips for plugging the exhuast on a kx250? exhaust port is larger and no plugs to plug it

[@GarageAddiction]

On my cr85 I picked up one of these in a 1 inch. Not sure how big the 250 exhaust is but you might find something. amzn.to/3VVPoW4

[@killerballs]

Did you ever get bike tuned right?

[@GarageAddiction]

I did! Funny enough it was the gearing followed by some high temp hose melting between the expansion chamber and the stinger choking the engine out