compression test?

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
A

andyken

Senior Member
Messages
680
Reaction score
0
Location
New Hampshire
Is there way to check compression on these little motors?


Is there a good/bad range?


Can a psi compression tester like used on cars work?


I have used them before on 4 stroke motorcycles...


On another idea...


Has anyone heard of or used a "color tune"?


I used it on motorcycles, might work on 2 stroke..?
 
I don't know if you can use a psi compression test on our motors can't see why not but have no clue as to the psi operating range. I would assume that colour tuning is checking the colour of the spark plug. I would recommend to check plug colour anyway to make sure you don't run lean.
 
GTS 666 said:
I don't know if you can use a psi compression test on our motors can't see why not but have no clue as to the psi operating range. I would assume that colour tuning is checking the colour of the spark plug. I would recommend to check plug colour anyway to make sure you don't run lean.
Click to expand...
Color tune is a cool tool !

A motorcycle guy from the UK told me about them.

After warming the engine up, stop and remove the spark plug...

And install the color tune, it is a spark plug made of glass/pyrex.

You can look THRU the plug and SEE the combustion.

The color changes as you adjust the fuel mix, cool as hell !
 
You can run a compression tester on the engine as long as you have a receptacle or adapter that will fit into the plug hole. Most good compression testers come with various threaded attachments.
 
Back
Top