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06-08-2022, 03:51 PM #31Member
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06-08-2022, 03:54 PM #32Member
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06-08-2022, 04:01 PM #33
My 97 supermag is mounted inside. My 95 200 is external.
Check out Ronnie's post if external 36-39psi.
Your hot on the trail.
Hope you don't have to buy a tps, last I heard they don't give them away, $$$ if you can find one.
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06-08-2022, 04:06 PM #34Member
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The TPS is very expensive but, cheaper than the ECU/ACU lol
Im not opposed to spending money, as it sits right now the boat is useless soooooo I have to fix it lol
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06-08-2022, 04:22 PM #35Member
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I will also add that the last water testing was performed both with and without the idle stabilizer hooked up.
I’ve read elsewhere that that box can cause problems when it fails (obviously not my problem currently) but what is the general consensus here? Remove ? Leave it?
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06-08-2022, 04:25 PM #36
I have mine removed, without any negative consequences.
Some people like to leave em on.
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06-08-2022, 04:27 PM #37
Check all your fuel filters. Theres like 4 in that engine. One in the J hose under the vst, one big green one inside a metal round housing in the upper forward port side of the engine. Also I have seen those pumps fail...pumping just fine at idle and then as soon as it gets up to 2000 or so the pressure drops off to 20 lbs and motor runs like ass. Make sure your fuel pressure is good and then check into the tps for sure.
You are using the correct manual for that engine.
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06-08-2022, 04:28 PM #38Member
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Did your timing need to be reset after removal?
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06-08-2022, 04:31 PM #39Member
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06-08-2022, 04:32 PM #40
I did reset my timing. I don't recall it messing up my idle timing to much but was only getting 19ー up top, had to bump that up to 24ー or 25ー.
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06-08-2022, 04:36 PM #41
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06-08-2022, 05:05 PM #42
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06-10-2022, 06:24 AM #43
I have a lot of parts lying around for those motors. I dont know much about the efi systems because I run carbs. Send me a pic or part number of the TPS and I can send you one
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06-19-2022, 08:42 PM #44Member
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06-20-2022, 10:40 AM #45
Stuff to consider.
Check spark.
Retest electrical components. Bias, kill circuit, voltage regulators, s. box in and out, coils, trigger.
Leaking injectors.
Fuel pressure regulator.
Pulse pump leaking fuel back to engine.
Reed valves broken.
Check valve, or obstruction in fuel tank.
Set timing, checking on all cylinders. Could have defective flywheel.
Lower unit trying to seize.
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