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I thought with the tiny tach you had to wrap a wire around the plug wire?

After looking around for a while, I found a nice little Opamma tachometer for around $50. If you google pet 304 tachometer you will find a couple places to buy it. It's made in Japan and mine had an Echo label on it. I've already used it a couple of times now with the temp changes and after my...

This was a good link too: http://www.arboristsite.com/chainsaw/33528.htm

I'm in the process of modding my muffler too. The easiest way to do it is found in this link: http://www.arboristsite.com/chainsaw/129928-2.htm but other people in the forums suggested the best way is to split the muffler and gut it, especially the cat. There are some other generally useful...

I dont have a way to weld the muffler back together so I was going to plan B with the holes like you said. I'm wondering if you make a big enough bypass path around the cat, is there any advantage to getting the cat out? Are there other baffles you cant see that need drilled out also? I think I...

I have been doing a lot of research on here in preparation for a muffler mod on my cs 450 also. One of the threads had pics of cs450 muffler (offset cat kind) where he just drilled two new holes on port side and one new one on exhaust exit side without touching the cat. Is there any advantage...

I just bought an echo cs450 a few weeks ago. After doing some research (on arborsite), I took the limiter caps off and tuned it myself. Everyone is right about it being set too lean from the factory - it was unbelievable and wouldnt have lasted very long. I didnt get the p, which I think comes...