Thanks Kind Sir! I'll give it a shot..
This worked great for me except for some goof ups on my part. At first, I bought the cheap knock off wt-215 on Amazon. I couldn't resist that it came with all those goodies like replacement fuel lines, fuel filter, spark plug, etc. all for $12 including shipping. After installing it, the saw would die after starting up. Thats when I found Brad's instructions here. The cheapo carb didn't even have a center impulse passage, so I bought a genuine Walpro and epoxied up the passage that was katy-corner on the housing, and drilled out the plug in the center passage. Turns out that had the same issue: the saw would start, then within a few seconds just die. I pulled my hair out trying every carb setting, then even pulled it off and put the original carb back on. Same issue!. Then i reversed the timing advance I had done. Finally I figured it out: The cheapo carb came with a gasket that blocked the center impulse passage. I left this on when I first put on the cheapo carb. Once I removed this gasket, the saw fired right up. Another tip: When I re-enabled the timing advance, I cut a small wire and carefully pressed it into the gap before resetting the screw - this helped assure the advance wouldn't slip back when I tightened the screw.
Just did two 170s. WT-215 is the best upgrade. Worth the money on these low end saws
How do you go about doing that?
Parts from China take weeks to get here and the tracking doesn't show progress until they clear U.S. customs. This guy may have scammed you but if you are impatient, you shouldn't order anything from anybody with a long shipping time because it is probably coming from China.
