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Jet Boats
General Jet Boat Discussions
weak reverse throttle
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<blockquote data-quote="turbotodd" data-source="post: 472307" data-attributes="member: 7376"><p>sometimes you can adjust the linkage and that'll take care of it. Other times not. Don't know what 90hp motor you have but some of the 60/40 Yamaha Jets (F40JEHA) have a different mapping for the EFI (and ignition timing) based on gear position. This is done because the jet loads the engine differently. Perhaps yours is similar but it still should throttle up in reverse, if only just a little. Power in reverse is normally reduced via linkage "stops", but should still be able to get about 1/4 throttle.</p></blockquote><p></p>
[QUOTE="turbotodd, post: 472307, member: 7376"] sometimes you can adjust the linkage and that'll take care of it. Other times not. Don't know what 90hp motor you have but some of the 60/40 Yamaha Jets (F40JEHA) have a different mapping for the EFI (and ignition timing) based on gear position. This is done because the jet loads the engine differently. Perhaps yours is similar but it still should throttle up in reverse, if only just a little. Power in reverse is normally reduced via linkage "stops", but should still be able to get about 1/4 throttle. [/QUOTE]
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Jet Boats
General Jet Boat Discussions
weak reverse throttle
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