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FJR Motorcycle Forums
Technical & Mechanical Problems
Old timer's engine question
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<blockquote data-quote="J Paul" data-source="post: 1109716" data-attributes="member: 18862"><p>The DDA 2 stroke engines would run backwards-I have personally seen it on old air compressors-they don't last long as the oil pump is also running backwards and the blower rather than supplying scavenging air is now a vacuum pump sucking exhaust. On a bike note the Scott water cooled 2 strokes could be reversed by bringing it to a slow idle and then going full advance on the timing at the right time.This was a sales feature when running a sidecar. Jeff</p></blockquote><p></p>
[QUOTE="J Paul, post: 1109716, member: 18862"] The DDA 2 stroke engines would run backwards-I have personally seen it on old air compressors-they don't last long as the oil pump is also running backwards and the blower rather than supplying scavenging air is now a vacuum pump sucking exhaust. On a bike note the Scott water cooled 2 strokes could be reversed by bringing it to a slow idle and then going full advance on the timing at the right time.This was a sales feature when running a sidecar. Jeff [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Old timer's engine question
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