Posted April 5, 201014 yr Hi Everyone Bought a TW 125 which had an Arrow XT600E 95/01 silencer fitted. The owner had also cut a hole in the air-filter plastic cover and fitted a foam filter. The original air filter was still in situ but the bike ran like a dog when looking for revs. I removed the original air filter and fitted a protective filter to the top of the snorkel. I also disconnected the crankcase breather from the air box. Question is - As I've not had the bike from new and not made the silencer change I'm not sure if the fitting of the Arrow silencer has really made any diff to the bike's overall performance and I'm concerned that with running lean it may suffer from premature engine damage. Any thoughts anyone?
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