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Yep, found it right in front of my nose as you all said. Idle is now set at 800 rpm. It ran too rough at anything below. My tach is original and questionable anyway as you have to tap it occasionally...

Well, I had another mechanic put a good ECU on it and it seemed to clean up everything. But he idled it down a little too much. He said I could access the idle from the front side between the VST and...

That's what I needed to hear guys. Just hoping Simon will accept Brucato's diagnosis and not charge another $95.

Thank you

That's what I needed to hear guys. Just hoping Simon will accept Brucato's diagnosis and not charge another $95.

Thank you

So, after years of troubleshooting and 5 "mechanics", I think I've narrowed it down to the ECU's. Yes, plural. I have a replacement from a friends old 200 EFI that blew up or burnt up on him. Anyway,...

All good ideas and points. I do appreciate the input from everyone. To be continued....

Just a quick visual, but didn't go that far in.

Silverbullet02 I am assuming that the last mechanic who had it did. He is a very well respected in rebuilds and high performance applications. He had some kind of diagnostic tool that pinpoints...

This has been going on for years. Start and idles fine. Gets up on plane okay and runs wide open fine. Runs like crap (Seems rich) any where below 4k rpm. Everything has been gone through and checks...

Yeah I have an extra set of switch boxes (cheap <EDIT-Announcements> ones) and good coils just in case. The 2000 motor came with a bunch of extra cdm parts too. I'll get too it eventually and might...

Thanks so much for the reply Euro. Guess I'll have to put that one back together and see what I'm looking at. I've been through hell with my rebuilt '96. But with this forum's help I also have...

So I bought a 2000 model 200 EFI parts motor mainly for the injectors, plus it had a freshly gone through lower unit. The seller said it was overheating on the left bank and could never figure it out...

Thanks! Yeah, I figured so. I should have asked more questions from the seller but mainly wanted it for the injectors. I know the VST fuel pump appears to have been wired direct to a power source and...

Can anyone tell me why all of the wires on this ECU are red? Bought it for the EFI fuel management system system like this. Thanks

:thumb up2:

Did anyone ever figure this out? I've been dealing with what seems to be the exact same issue since about when this thread ended. I've replaced almost everything at least once.

Good point! And yeah it was probably a bad idea when I agreed to let the mechanic put the 200 powerhead w/EFI. Cowling still says 150 XR6 but I probably couldn't insure if I wanted and it may make it...

Okay yeah I just need more running time. I now have hydraulic steering, maybe that'll help. But it's been awhile since I could play with it. I'm a little disappointed it doesn't have a pad like some...

Old thread, same boat I'm tinkering with. Can this hull run through the chine walk safely?Tr185
411983411984

Old thread, same boat I'm tinkering with. Can this hill run through the chine walk safely?Tr185
411983411984

:confused2:Sorry about just getting back but I had to fish despite still having issues. I will be taking it to another mechanic this week.

My '98 200 EFI is a replacement powerhead for an '02 XR6 that the oil injection failed on. The 200 powerhead has had about 30 gallons of fuel though it. All was fine until it sat up for approximately...

I would love to know whatever came of this. Im having the same problem with mine after new trigger, stator and voltage regulators.

Okay thanks ANG. Well I re-measured motor height confirming the prop shaft to be 3 - inches below the pad. The h2o pressure gauge Ininstalled was a teleflex bought several years back but never used...

Well I'm gonna go run it again. Just got the H2O pressure gauge installed.