Gordy
Well-Known Member
You've never put an exhaust on literally anything carbureted have you? Whether it's a fourwheeler, motorcycle, or car you need to tune the carburetor after. Same with any intake modifications. A crappy exhaust can still be made to run good: Ex... The stock exhaust. And well made motorcycles, fourwheelers, amd cars are way more forgiving than a single cylinder small displacement engine.I'm having a hard time understanding the logic in this thread xD He said he bought a new EXHAUST and the bike got slower... Why hasn't anyone asked him to show this new exhaust? It is propably utter crap and thus the reason for his power loss. And this checking your mixture by looking at spark plug while engine is hot... What a way to over complicate things! This is not a Formula 1 engine we are dealing with here! Plenty of simple lean/rich instruction videos on youtube that will solve all problems that such a simple engine has.
Explain yourselves, people!
Fuel injection is self tuning, carburetion is not. These bikes are not fuel injected.
Good enough explanation of the painfully obvious???