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2008 optimax 225
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   Fishing Boats, Motors, Trailering, Q & A or Discussion

Posted by Cstick1
5/26/2018 11:48 AM
Boat started to not reach full rpms on take off and just progressively got a little worse throughout the day..nothing crazy but just could tell it was different only getting to about 3000 rpm but would eventually get up and going and run fine. Changed the fuel filter and had to undo the throttle position sensor. Tried to fish last night boat started and idles like it should but when you tried to give it any gas it would not rev at all. The tps looked like it was starting to separate from the plastic bracket so I'm not sure if that's the issue or not. It's not throwing any alarms. Has anyone had a similar issue?
Posted by silvertalon
5/27/2018 8:34 AM
You can't "undo" a TPS and ever expect the motor to run. It tells the ECM to advance or retard the fuel curve. It is not uncommon to replace a TPS but they are usually reliable. An Opti will not run with dirty spark plugs. You should start there. Should change them every year or two. They are pricey too.

Edited by silvertalon 5/27/2018 8:35 AM
Posted by dtw2
5/28/2018 7:49 PM
yes spark plugs fouled
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