stihl 230C ergo

[saving the pennies]

I have stihl 230C ergo approx 5 years old from new. Now have revving problems. Idle ok, starting okay, but when revved cuts out when goes to cut wood. Any ideas ? Have cleaned air filter, checked plug, cleaned saw. Fuel okay.

[spudulike]

I have stihl 230C ergo approx 5 years old from new. Now have revving problems. Idle ok, starting okay, but when revved cuts out when goes to cut wood. Any ideas ? Have cleaned air filter, checked plug, cleaned saw. Fuel okay.

 

OK, this could be one of many faults, you need to clarify if the saw will die when revving and not cutting wood, I believe you mean from your post that the saw will die when revving and on cutting.

 

If this is the case, the most likely culprit is fine sawdust in the carb internal gauze filter, it will allow enough fuel to seep through for idle but will starve it of fuel on revving.

 

The thing to do is pull the carb off, remove the cover with the large single screw and look fo the gauze filter - like a tiny cooking sieve and about the diameter of a pencil. Clean the filter out if there is any crud in this area - carb cleaner is great but WD40 will suffice.

 

Other things to look at are fuel filter (not a likely problem), split fuel line (possible), blocked tank breather (try revving the saw with the fuel cap on loose and see if it improves), cracked impulse line ), cracked carb boot manifold.

 

These are the most likely issues but the tank vent and gauze filter are the most likely! A five year old saw should have all its rubber parts in good condition!

[saving the pennies]

thank you for your help will try your suggestions over the course of the next week Thank you again