You are FULL of great info. Thank you!! I will play with this more over the holiday weekend and dig in deeper to some of the things you mentioned.
My idle on both engines bounces around 590-650. Its set to desired idle of 600 according to what I see on the techmate when the boat is at idle...
Yep that’s what I did. I used to race jet skis and build my own engines. I just treated it like I was adjusting throttle cables on those. It’s resting on the stop now instead of the cable. Will see….
Thank you. Excellent questions.
I bought it fairly late in the season about 5 years ago. I don't remember it quitting at all that’ll first season. The next year I started having the issue. That's why I brought up the question about why they say not to use
There have been situations...
I checked it last year when I was hunting this problem so I would be lying if I said I remembered. I just remember at the time it was right at the spec that I had found.
Also had one pump go out last year and rebuilt both of them and no change after that with the stalling problem either.
I...
Thanks for your help. Fuel pressure checks out good. I will take another look at throttle bodies but last time I remembered them being very clean.
First year I had the boat I fogged the motors when winterizing. Later I read that you aren’t supposed to fog these so never did again after...
Did a big boat trip a couple of weeks ago. I ran about 3000 RPM for 4 hours and then pulled into a channel. I backed the throttles down to 1,000 rpm for the channel ride. As I got into the lake I started putting out fenders so I just chopped the throttles from 1000 to idle speed and both...
I bought a Techmate pro. Wondering anyone knows where I can find the correct ranges for everything like the IAC, TPS volts, MAP volts, IAC position, Timing degrees, etc. I searched the web for a while and can't find a thing.
I had no codes at all.
It’s been situations where maybe coming in slightly faster that ideal so after putting it in reverse I give it just a little throttle. If I return throttles back to idle too quickly it can stall at times.
Yes when it first fires it does a quick Rev up to maybe 1500 rpm then when it quickly...
All connections are clean. I will double check voltage again at the starter, but starter is fairly new(problem existed before that so not related)
Are you still classifying my 2001 as "new motors"? Probably referring to anything with a computer I am assuming.
I might spring for the $500. I...
I don't disagree that just throwing parts at something isn't the best method, but I also hate to have the boat spend 3 weeks at a dealer during the season. I wish I could find someone to scan it. I think I looked into buying a scanner before but they were pricey for a VP. Might still be worth...
Looking for help....I have a 2001 Cobalt 360. Twin VP 8.1 GXI. I have had a problem I have been struggling with for a couple of years now with no luck.
When I first fire the engines cold they fire really quick and stall. Hit the key again and they fire right up and run fine. They both do...
I finally did get through to the dealer that looked at it. They called it a swivel shaft seal. After talking to him they said it's the seal at the top where the steering arm goes through. It actually does make sense because that is sitting just out of the water normally but when it a little...
I have done a ton of searching and that was one thing I had read. The transom is a composite rather than wood cored so I would think that could be it. That being said, I did notice that both drives have a bead of white caulk all the way around both transom assemblies.
Have a 2001 Cobalt 360 with DP drives. Last year I had a marina pull the drives, align motors, and check things over. I also replaced the shift cables that winter.
This past spring I had a water getting in the hull. Boat sits on the trailer all week and spends one weekend night in the water...
