de-carbonizing?

[mbb]

Im new to chain saws, having just bought a husky 353. Ive seen a few posts here mention carbon buildup. I decarbonize outboard motors about every 50-100 hrs of use using Seafoam. Does anyone decarbonize chainsaws? Carbon buildup and stuck rings are a common mode of failure on neglected outboard engines (2 stroke) today.

How much life (hrs) can be expected from a properly maintained chainsaw engine? 500? I have no idea what to expect here.

 

[TimberPig]

Th life of the saw engine is primarily related to how it is run, how well it is maintained, and the build quality of the engine. Pro grade saws made with top materials, well maintained and run properly will last several hundred hours at least. Homeowner quality models will run less, and box store junkers will be lucky to run more than 200 hours with the best of care.

Carbon buldup isn't a major issue if your oil mix is reasonable and your carb is properly adjusted. It generally takes quite bit of running to build significant carbon with good oil. Synthetic oils in particular tend to produce very few deposits.

So long as you use good oil, keep the air filter clean, and don't abuse it, your 353 should easily run for several hundred hours. I would be surprised if it needed a decarbonizing, especially at 50-100 hours of operation.

Outboard boat motors being water cooled, and running upon an endless supply of cooling water tend to run much cooler than do air cooled chainsaws, whcich tends to make them build more carbon as well. Carb tuning on outboards also tends to be less than spot on which also builds more carbon, as the rich running engines do not completely combust the fuel/air/oil, which leads to carbon production.

 

[pinus]

Th life of the saw engine is primarily related to how it is run, how well it is maintained, and the build quality of the engine. Pro grade saws made with top materials, well maintained and run properly will last several hundred hours at least. Homeowner quality models will run less, and box store junkers will be lucky to run more than 200 hours with the best of care.

Ole-Mac/Efco is giving for some its professional grade saws and trimmers the lasting time not less than 1500-1800 working hours.

 

[bugfart]

For Small 2-Cycle Engines
1) Start engine. If engine will not start, check spark and compression. If engine has spark and compression, pour a small amount up to 1/2 ounce into the carburetor throat. SEA FOAM will act as starting fulid and will start the engine unless there is a mechanical or electrical problem. With engine warm, keep on high idle and slowly pour one ounce through carburetor throat. Make sure exhaust is well ventilated when using in the carburetor as fumes will be extreme for a short time.

2)Pour 1/2 to 1 ounce into small fuel tank.

3)See label on can for exact detailed results for use in each area Fuel Tank-Carburetor.

NOTE: SEA FOAM does not replace 2 cycle oil. One pint treats 8-25 gallons of gas (average one ounce per gallon) or 6-12 gallons of gas oil mix (average 2 ounces per gallon.) Does not replace oil. Use frequently.


For Engine Storage

For storage, the engine should be thoroughly saturated internally with Sea Foam. Sea Foam can be injected internally through the spark plug holes or through the carburetor with ignition off.

For Fuel Stabilization
Use 1 pint to 25 gallons or (average of 1 ounce per gallon) to stabilize and condition fuels. One pint stabilizes 25 gallons of regular, unleaded and diesel fuels.
Use 1 pint to stabilize 6-12 gallons of 2 cycle (gas-oil mix) fuels (average 2 ounce per gallon).