Author Topic: sach dolmar 143 chain brake help  (Read 1381 times)

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Offline Bitburger

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Re: sach dolmar 143 chain brake help
« Reply #10 on: January 11, 2014, 06:09:41 pm »
this mechanical rpm limit is for protecting the enginge when at full throttle without any load.
Maximum power while cutting should be at a much lower rpm, like 9000 rpm or so !

Just "fixing" that valve will not affect the power while cutting! Excpet you will do some porting job, that ends up at a higher rpm during normal opperation.

The valve also does not alow you anymore to do carb adjustment according to max rpm, just as every rpm-limited saw, you have to do the finetuning while cutting in wood.

As I wrote in your other thread, the 143 is the last saw you want to tune above factory specs! Not very durable even in its original setup!


 

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