For the 1975 Johnson model year, they advertized that they had an amazing devise that delivered up to 58% better gas mileage than the 1974 models. - It had a new Johnson-engineered accelerator pump carburetor that "leans down the fuel mixture to make your JX run smoother, gutzier and more economical than ever before. They also offered both a bogie and slide suspension for their 1975 JX models.
That was a quality sled!
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