KDMatt
Seaman Apprentice
- Joined
- Aug 8, 2009
- Messages
- 33
Hey guys, I'll try to keep it brief.
'99 Carbed Yamaha Vmax 150hp outboard. It was just rebuilt late last summer. I was out today to finish up the break-in (I've got about 5/6 hours on it so far, just putting around at 1500 rpm and below) -- spooled it up to plane the boat out, then backed off to 3000ish rpm's (as per rebuilder's instructions). Oh, and it's also double-oiled for the break-in (in fuel + direct injection)
... and after about 30 seconds or so at 3000ish RPM, the overheat alarm came on. Could definitely see some steam coming from the back of the motor as I slowed it down -- alarm stayed on for quite a while. So I doubt it's a sensor/instrumentation.
I'm perplexed because:
1 - good water stream coming from the "pee'er"
2 - Oil tank topped off.
I wasn't hoping I'd have to spend my fourth of July putzing around with a motor, but I guess it can't be helped this time.
It's on the lake right now, so suggestions for things I can try while it's in water would be helpful.
'99 Carbed Yamaha Vmax 150hp outboard. It was just rebuilt late last summer. I was out today to finish up the break-in (I've got about 5/6 hours on it so far, just putting around at 1500 rpm and below) -- spooled it up to plane the boat out, then backed off to 3000ish rpm's (as per rebuilder's instructions). Oh, and it's also double-oiled for the break-in (in fuel + direct injection)
... and after about 30 seconds or so at 3000ish RPM, the overheat alarm came on. Could definitely see some steam coming from the back of the motor as I slowed it down -- alarm stayed on for quite a while. So I doubt it's a sensor/instrumentation.
I'm perplexed because:
1 - good water stream coming from the "pee'er"
2 - Oil tank topped off.
I wasn't hoping I'd have to spend my fourth of July putzing around with a motor, but I guess it can't be helped this time.
It's on the lake right now, so suggestions for things I can try while it's in water would be helpful.
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