Hello, I recently bought a 2010 Nitro Z-7 with a 2010 150 Optimax. It has an original 94 hours on it.
The serial # 1B792084.
Make and Model #MROB/1150D73.
The boat had blown lower unit and had sat for awhile when I bought it, and put a new lower on it, and it ran great great for 8 or so fishing trips after the lower unit was replaced. I had no known issues.
I was out fishing this past weekend (in a tournament), and started noticing that as I trimmed it up the motor, it would almost bog down and only turn 4200 rpms, then wouldn't get back up to speed, and stay at 4200 rpms.
It did that for 4 or 5 times going from spot to spot, then went to start it up the next time and it would only crank, but wouldn't fire over.. I tried for quite a awhile to get it to fire and I never could. I had to trolling motor to a ramp and load the boat.
The next day, I tried to fire it over in my shop, and sure enough, it fired right over.. I then, took it down to the boat ramp, and put it on the water and it fired over. I rev'ed it a few times, then turned the key off. I tried starting it again, and then the same problem as before, it would only crank, but wouldn't fire over...
I pulled the boat out of the water, let it sit for 10 minutes or so, then turned the key, and it fired right over. Then, I did the same thing as above. Backed the boat down into the water, started it and it fired over, rev'ed it a few times, let it idle, then turned the key off. Then went to start it up again, and it just cranked and wouldn't fire....
Any clue where I should start? Anybody ever heard of this?
Thanks,