The W2 series of engines was developed to offer a budget priced alternative between the inline two cylinder 18.2 hp Model TJD and the 30 hp V-4 Model VH4D. The initial engine model was W2-1230 as the engine has a displacement of 1230 cc's. Note that this horsepower was developed by running at 3600 rpm, the highest revving Wisconsin multi cylinder engine to date. It is felt that the engine was under rated when introduced at 25 hp and had some carburetor and other minor changes done and the engine model was subsequently changed to W2-1235 (26 hp) and then to W2-1250 (30 hp). While a low cost alternative there were some major problems over the years with this model mainly with camshafts breaking and scrambling the insides of the engines. This model was eventually dropped as word of these failures spread throughout the industry. If you have one of these engines and it has performed well to date you should anticipate it will continue to do so for years to come if it has not failed prematurely to date. It is interesting to note that years later in 2004 Briggs and Stratton have just introduced a 31 (and soon a 35 hp) aluminum block v-twin engine similar in many respects to the W2-1230 engine first introduced by Wisconsin in 1986.

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