Ok thanks, I will run it a while stock just for comparison then mod the muffler. Good advice on the chain, I will be more careful sharpening than my usual.
My new 150 will be here in a few days. Is there anyone that is happy with the stock performance or should I just do the muffler/ timing mod straight away ? are there any parts I should order to have on hand before doing the mod; gaskets, flywheel key ? thanks.
I have stripped out those little butterfly screws before. you can " stake " them with modified vice grips or pliers. Some carbs butterfly screws come staked in from the factory, those are a real bitch to remove.
Sounds like you need to richen your low speed screw, assuming it has one ! soldering gun with a fine tip makes quick work of removing those plastic limiter caps.
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