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Not sure. I only know because my pressure was 80+ and causing my boat to run really poorly. I fixed the regulator and the spec called for 60psi...

Fuel pressure on that boat should be 60psi. I would check rotor, cap, wires first. Especially if you just did the fuel pump.

Mike

I have a 2005 21v with the same motor. I use Mobile 1 15w-50 synthetic. I have used the same oil for the last 900 hours and it holds up great. I use a FRAM PF5 filter- it is the oversized one for...

Does it actually backfire? You hear a loud thump? If not, I would do the ignition sensor and maybe wires. I had one go bad and it would just lose power (sounds like a misfire). I think they are...

Make sure you have clearance on your trailer.. I updated to this prop and had to raise my bunks. 2005 Launch 21v.

UPDATE: Coil and Ignition Module replaced- 5 hours without any issues. :) Only $155 Happy wife

No, there is a coil that hooks to the distributor cap. I replaced this about 2 years ago and the guy as skidim said these rarely go bad. My mechanic said to try the ignition module next. I was...

Status Update:

Still have a slight miss. I replaced the spark plug wires and installed a permanent fuel pressure gauge. We drove it 3-4 hours this weekend and it “missed” less than 10 times....

So the MEFI was dead- if you jumped it I could get the fuel injectors and fuel pump to fire, but it wouldn't do it on its own. I replaced it (for $1500), got the boat home and it ran OK for about 20...

thx mark. I'll let you know depending on what else I find out there.

Anyone know anything about this boat for sale:

http://knoxville.craigslist.org/boa/4497222724.html

I live 3+ hours away, so if anyone has looked at it and can offer any info it would be great. ...

Dealer just called- computer is dead. The fuel pump and fuel injectors won't fire without a bypass ground. He quoted me a price of $1500 just for the part- is there any place I can find one...

I tried, but it was too hard in the dark. Dealer has it now. We will see...

So I remove the relay and test where it plugs into?

Checking pins is a bit above my skill level. Not to mention it is a very tight space where the ECM is located. As soon as the river lets me I will be taking the boat out and to the dealer.
...

Indmar was nice enough to send me a diagram. It is attached.14220

I don't have a diagram- I haven't been able to find one.

I checked the lanyard switch and that is not the issue. I also just replaced the 3 relays near the computer- I know one is the fuel pump, one is the starter, and I don't know what the third is. ...

So I have had a 2005 Launch 21v that we have put 900+ hours on and this weekend was the first time we were stranded on the lake. The boat started losing power (like someone pulled the emergency...

I'm on wylie- way up by the mtn island dam. Where are you at?

I got one from http://skiboatcovers.thecanvasshoppe.com for my 2005 Launch 21v and it is great. If you do the Sunbrella material you don't need a vent since it is breathable. Call the dude there...

Got the boat back last week from the shop and had to drop her in. Had them do a new interior as well as a new cover. It's like having a new boat!

I need to do my 2005 Launch too. How much is it going to cost for a full new interior?

Why no synthetic?

Another wakesurf session...

http://youtu.be/Gq2LZXSTBXk

Mike
2005 Supra Launch 21v
Wakesurf Setup - Goofy
750lbs Right sac 1/2 full
1100lbs front sac 3/4 full
2 Humans aboard.