Aboutsportstertodd Expertise Anything on Harley Davidson sportsters models. Wiring and engine/tranny questions on Harley Davidson shovelhead and evolution models. Also have some time spent on the old triumphs.
Experience state certified as master motorcycle mechanic and worked at Harley Davidson and triumph repair shop for 12 years, but haven't worked in the motorcycle trade in 3 years.
Organizations none
Publications none
Education/Credentials state certification in master motorcycle repair
Question I have an original harley davidson carburetor on a 1988 Sportster 883 1100. The jets in the carburetor were replaced to give the bike more power when it was converted to an 1200 10 years ago. As I am getting poor gas milage, I would like to change the jets. My questions are; what type of jets should I buy for the best milage performance and will this change in jet size effect any other modifications that were made on the bike when converted to a 1200?
Answer First I would ask you how does the bike run right now, if the answer is great then I wouldn't touch anything. To get more power ie.. 1100 to a 1200.. it takes more fuel. But if its bogging down upon acceleration then you probably need a jet size or 2 smaller on the low speed jet. On the other hand if your putting out smoke or your riding buddys behind you can smell gas at a constant speed of about 60 mph then you probably need to reduce the main jet a size or 2. The main jet would be your gas mileage reducer also.
