My buddy put it away last fall and left the gas in it. He brought it to me to fix it. Carb was plugged, and cleaning did no t help, so I replaced it. It starts, but won't run right. Bogs down when put throttle to it. Checked for exhaust plug, and noticed cylinder is visibly scored, but exhaust is open. Is this a lost cause, or is it possible it could be a good saw again? He claims it was always was a good saw, and there was no issues with it when he parked it.
Stihl MS 192T Top Handle Saw
- Thread starter ArchieBennett
- Start date
Help Support Arborist Forum:
They can be little bastards. Fuel tank vent issues, collapsed/pinched fuel lines, if you hooked the purge bulb up wrong, last running issue I had with mine turned out to be crank seals. That was a fun job. I tried aftermarket carb once and that was a no go either.
Forgot to mention that the compression feels normal, but I do not have a gauge.
Rip it down and inspect the cylinder and piston if its really scored.
Likely a new top end is needed, and most dealers charge more money to rebuild these saws than they are worth. I have saved several for replacement parts because those are not cheap either. Regardless, a visible inspection of the P/C is good advice,
This is why I always say piston and cylinder condition are more important than a compression reading.
Get it tore down. You will have to decide if the repair cost is worth it.
Get it tore down. You will have to decide if the repair cost is worth it.
True, but I still use a comp test as a guide.
Current 192 in for rebuild.
Minor piston scoring, cleaned up fine. Some cyl transfer...cleaned up but took a while.
The saw "ran" before teardown but had an obvious air leak. So pulled muffler...yup...
Waiting on seals and rings to show up...
Did some mild porting, just for fun
. Muffler mod... might tweak the timing a tad.
Backup saw for a friend.
Minor piston scoring, cleaned up fine. Some cyl transfer...cleaned up but took a while.
The saw "ran" before teardown but had an obvious air leak. So pulled muffler...yup...
Waiting on seals and rings to show up...
Did some mild porting, just for fun
. Muffler mod... might tweak the timing a tad.Backup saw for a friend.
Good old corn squeezed gas, the bane of small engines. Why I run canned gas now exclusively. Might be expensive but still less expensive than tearing one apart and replacing components. In the fall prior to laying up the lawn equipment, I drain out all the corn squeezed crap (and put it in my car) and partially refill the fuel tanks with canned gas (you can buy Tru-Fuel with no premix in it) and run them for a while and then they sit all winter in the unheated barn and in the spring, they start right up, no issue and no carb problems. Stuff is nasty and phase separates when sitting for a period of time.
Just bought an Echo CS top handle and a spare loop for a good friend as a Christmas present and along with it is going to be 2 gallons of Echo Red Armor 50-1 canned gas.
Just bought an Echo CS top handle and a spare loop for a good friend as a Christmas present and along with it is going to be 2 gallons of Echo Red Armor 50-1 canned gas.
