Chainsaw Repair

There is no such thing as a quite 10-10 .If there were it wouldn't run worth a hoot .

From a design criteria the ten series from the 10-10 up to the 850 produced a lot of torgue but the flaw was a bottom exit exhaust .The outbound exhaust has to make an acute 90 degree turn to get out .It works the same way as air conditioning air ducting  ,it's about like hitting a brick wall with the exhaust discharge plus some ten series mufflers had another 90 degrees bend .Couple that with heavy baffles and it's just is not conducive to good exhaust exit design .So as a result they just don't run well with restricted mufflers .

Fact you plug them up like some times happens because of faulty oil pumps on the PM 610 models plugging the screens they cook the pistons .