"My tomos targa has experienced a loss of power lately. I used to cruise up a certain long hill at 26mph, but now can only go 20-21 mph. My low end acceleration seems fine. The engine seems quiter (smoother) less pinging now. I cleaned the carburator, scraped out the exhaust manifold, changed the plug, cleaned the air filter and inspected, but did not clean the exhaust system. (Didn't appear that dirty). Can just oil deposits on the exhaust baffle slow me down?<p>Any suggestion on getting back my speed?<p>Thanks"