strange problem today

[Pointhunter75]

95 xp
Well today was the fourth trip out after carb rebuild, new fuel lines, cleaned fuel valve, cleaned factory fuel filter and added Fram g2 filter. It had ran like a top so far. Today after a couple hours of running great, I noticed while playing in waves that it suddenly felt a little boggy at lower speeds, about quarter throttle it would suddenly take off. A little later I yelled and it was idling at 3000 instead of 1500 rpm.played around a little more then went to ramp. I had to cut it off then reveal a few times to straighten up for the coast to the dock. The last crank it idled 1500 again for a couple seconds then I shut it off. Loaded her up by hand. Out of the water I cranked it to blow it out and it revved to like 7200 and on the rev limiter! I tried it once or twice more and same thing. Any ideas?

 

[Strizzo]

Sounds like your carbs might have come loose a bit. Did you use loctite on the threads when you reinstalled them?

 

[Pointhunter75]

No I actually used anti seize because I almost never got them off to rebuild because of corrosion. Even broke one bolt after a week of multiple daily PB blaster treatments. I'll check tomorrow. Hopefully that's it and it didn't hurt anything.

 

[Mickirig1]

My shop manual says use grease on the carb hold down bolts on all models.

 

[Robj]

On my carb bolts I used blue locktite with grease on the shank of the bolt.

 

[Pointhunter75]

Just went out and wiggled on the air box and sure nuff,front carb wiggled! Great diagnosis strizzo! Gonna take the box of later and fix it. Think it hurt anything? It still ran fine after 1/4 throttle. How should I do the lock tite? Robj can you explain what you mean? You used both on the threads?

 

[Strizzo]

Like robj said, put anti seize on the shank, run it throu the carb, then blue loctite the threads.

 

[Pointhunter75]

Oh ok got it. Do you think it hurt my engine?

 

[Coastiejoe]

I doubt you hurt your engine. A lean condition is certainly a bad thing, but yours was short term. As long as you have all the carb bolts when you open it up, I would think you will be good to go.

 

[Pointhunter75]

Good I sure hope it's ok. I'll update when I check it out.

 

[Pointhunter75]

Another question. My brother said that once I got going at higher speed it was probably sucking the carb(s) down to the manifold enough to seal and why it seemed fine once it got going and why I could only tell something wasn't right at low throttle. Sound accurate?