ChinaRiders Forums - View Single Post

fratermus · 06-12-2016, 05:02 PM

Ok, I got a compression tester with 10mm adapter and an attachment that will allow me to blow air into the sparkplug hole. So some new pieces of information.

1. Cold engine has 125psi of compression.

2. adding .5ml of oil manually bumped it to 128psi or so. Certainly not a big jump.

3. blowing into the spark plug hole with 60psi caused the engine to turn over

4. when it came to rest from #3 the air came out the exhaust

5. when I put my hand over the exhaust while injecting air I got some oil to rise up the catch can line. Releasing my hand dropped the oil again.

Am I any closer to a diagnosis?

06-12-2016, 05:02 PM	#50
fratermus Join Date: Jun 2006 Posts: 130	Ok, I got a compression tester with 10mm adapter and an attachment that will allow me to blow air into the sparkplug hole. So some new pieces of information. 1. Cold engine has 125psi of compression. 2. adding .5ml of oil manually bumped it to 128psi or so. Certainly not a big jump. 3. blowing into the spark plug hole with 60psi caused the engine to turn over 4. when it came to rest from #3 the air came out the exhaust 5. when I put my hand over the exhaust while injecting air I got some oil to rise up the catch can line. Releasing my hand dropped the oil again. Am I any closer to a diagnosis? __________________ Current: bikeless for now, moved into a campervan. Past: 2012 Honda NC700x, 2014 Taotao ATM-50-A1, 2014 Taotao Evo, 19?? Honda Spree 50, 1982 Katana 550
	0