I recently bought a compression gauge as I am determined to start doing all my own repairs I have two ms 192 t's both under a year old been trying to give them equal time both have never had a drop of ethonal and only mixed with Sthil ultra. My primary lost power so I dropped it off at dealer.
After a week or so my back up started losing power since I had not gotten my other back yet I decided to trouble shoot myself. well found the problem thanks to some help on another forum. I never looked at the spark arrestor carbon build up real bad blocking screen a real duh moment. But I had bought a gauge and read 120psi I'm being told that is way too low for a saw of that new. But when I cleaned the screen and it ran great like new again cutting great. Was still very conserned about low compression reading. So I go to the dealer that has had my other 192 and have not even looked at it yet.
I talk to the technician who tells me 120 is a good reading and not to worry. And that nothing wrong with running ethanol as long as its high octane. I said thanks for the advice and I'll save you some time and take my saw off the shelf.
Got home cleaned the screen and rest of saw good and thorough ran compression test identical reading to my other 192 about 120 psi.
Should I be concerned? Should I find a new dealer? Is the low reading from the easy start I'm guessing some kind of auto decompress or something? Are they telling me to run ethonal hoping to replace fuel lines and carbs in the future and sell more gas caps? Is it realy a low compression for the 192?
After a week or so my back up started losing power since I had not gotten my other back yet I decided to trouble shoot myself. well found the problem thanks to some help on another forum. I never looked at the spark arrestor carbon build up real bad blocking screen a real duh moment. But I had bought a gauge and read 120psi I'm being told that is way too low for a saw of that new. But when I cleaned the screen and it ran great like new again cutting great. Was still very conserned about low compression reading. So I go to the dealer that has had my other 192 and have not even looked at it yet.
I talk to the technician who tells me 120 is a good reading and not to worry. And that nothing wrong with running ethanol as long as its high octane. I said thanks for the advice and I'll save you some time and take my saw off the shelf.
Got home cleaned the screen and rest of saw good and thorough ran compression test identical reading to my other 192 about 120 psi.
Should I be concerned? Should I find a new dealer? Is the low reading from the easy start I'm guessing some kind of auto decompress or something? Are they telling me to run ethonal hoping to replace fuel lines and carbs in the future and sell more gas caps? Is it realy a low compression for the 192?
