Still Bogging.....even after taking it to mechanic

[Nathan S]

Re: Still Bogging.....even after taking it to mechanic

Did you actually measure the fuel pressure to be 8 lb, or just guess?
Now it sounds like a fuel pressure/supply problem.....

It has a gauge inline just before getting to the carbs and primer. Its actually 6 now I dropped it to see if it was forcing through the carbs. I dont think it is tho.

 

[Faztbullet]

Re: Still Bogging.....even after taking it to mechanic

Its lean that why tapping "choke" helps it, if it was flooding it would stumble and load up not bog. Set the fuel pressure at 7 psi and change jets and it will be good to go.

 

[petryshyn]

Re: Still Bogging.....even after taking it to mechanic

Unless you have changed elevation, I have a hard time believing it needs a jet sizing when it was good before. But then again, maybe a gremlin changed them out before without us knowing it.....
I would reclean the carbs. Even if they have been recently cleaned, simply moving lines around can add crap to the jets...
Be sure of the float setting.

Cheers....

 

[Nathan S]

Re: Still Bogging.....even after taking it to mechanic

I will probably end up recleaning and jetting the carbs, but I played around with some carb cleaner today and found that the oring gasket between the #5 carb and throttle plate was faulty. It was either kinked or nicked, but it reved up when you put carb cleaner on it, so it atleast has an airleak there. I will try to get a new gasket tomorrow. Before doing this I did lean the carbs 1/4 turn, it made it worse. And I also richened the carbs 1/4 turn. Richening them was better than leaning but not great. Maybe this leak is where the lean condition is coming from.