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Sounds great. No baffling. Only a spark arrestor. Kind of a sharp, raspy thump. It came with couplers to step the headpipe up to the correct size. Some welding was required around the pipe to seal up gaps due to it not being perfectly round. And the clearance is tight for the kick start. But...

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So here she is. I'm happy. Maybe some cosmetic repairs, but its summer and I wanna ride. New tires, bars, trumpet style muffler and blasted/painted rear shocks.

Wondering if anyone has a link to a set of fork boots that would fit well on a cb125s. Thanks.

Is it possible to improve the drum brakes on a CB. Particularly a 1980 cb125 fronts. Has anyone experimented with extending the brake lever on the drum to apply more leverage to the shoes? Any tips would help. Thanks

Look. I get it. My cb125 will never be fast. Its just that I've always exercised the idea that when you add more air and fuel to a combustion engine, it creates power. But for some reason this rule seems to be exempt with the cb125s. I have a 400cc single Suzuki that I installed a k&n filter...

1980 cb125s single.

Thanks for the responses everyone! The motor only had 1600 miles it so I may try pod, jet, exhaust. Is that a pointless mod?

I own a GS550, CB350, DRZ400s and now a mint CB125. It is not about speed with this little guy, I just can't leave anything stock. Lol

Its a serious question. ;) If you know of any proven CB125 engine mods, or any "go fast" mods please list them. Thanks!!!