Repair 7

How to Tell If a Sportster 883 Has Been Converted to a 1200

There are multiple ways to convert a Sportster with an engine displacement of 883 cubic centimeters into one with an engine displacement of 1200 cubic centimeters. As a result, there are several potential clues to interpret. One infallible test is the removal of the motorcycle heads, which takes a skilled mechanic at least four hours. The cylinders on an 883 are 3 inches in diameter. The cylinder interiors on a 1200 are a full half inch bigger. If you do not feel like rebuilding the whole top end of the motor, though, there are still a few options.

Instructions

1

Look at the heads. If the heads were manufactured by Edelbrock, S&S, Harley-Davidsons own Screamin Eagle performance line or any manufacturer other than Harley-Davidson they were installed as part of an aftermarket conversion package so the Sportster is a 1200 not an 883.

2

Examine the base of the cylinders. The most common conversion procedure replaces the cylinders but not the heads. If the cylinders are engraved "1200" at their bases the Sportster is a 1200.

3

Ride a known 883 Sportster hard. Ride the 883 on a freeway or interstate and uphill and note the acceleration and torque of that motorcycle.

4

Ride the motorcycle in question. A 1200 Sportster has at least 40 percent more horsepower than an 883. The difference is unmistakable and it is a fool-proof test.