Not the average carb idle issue.
Posted: Sat May 02, 2009 4:47 pm
Ok so i have been messing with my carbs the past 2 days. I had taken them apart and rebuilt them. Before i did this it didnt idle for shit either.
I synced the carbs and have tried having the idle air mixture screw at 1.5, 2, 2.5, 3, 4, and 5 turns out and there really wasnt much difference between each setting. I have tried messing with the idle speed and it will be a constant idle at 3k but when i try to lower it to like 2k or 1.2k but it just starts stumbling kind of and dies. it will rev fine at 3k but as soon as i go under that it does to hell and dives down and dies.
sometimes i will get it set at like 1.5k and then all of a sudden it will have a mind of its own and rev up pretty high and just go crazy, I used my IR TEMP GUN and the two outside cylinders were at like 170-200 degrees farenheight and the middle two cylinders were at like 750-770 degrees farenheight. when we messed with the idle air screws it really didnt make much differance.
i really need some help. Could this be because of the float level. it is the one thing i did not set because i didnt get how the hell to measure it.
Could it be electrical or maybe a vaccum leak. If so where are all the vaccum lines and places to check for vaccum leaks.
Thanks guys,
Dan
I synced the carbs and have tried having the idle air mixture screw at 1.5, 2, 2.5, 3, 4, and 5 turns out and there really wasnt much difference between each setting. I have tried messing with the idle speed and it will be a constant idle at 3k but when i try to lower it to like 2k or 1.2k but it just starts stumbling kind of and dies. it will rev fine at 3k but as soon as i go under that it does to hell and dives down and dies.
sometimes i will get it set at like 1.5k and then all of a sudden it will have a mind of its own and rev up pretty high and just go crazy, I used my IR TEMP GUN and the two outside cylinders were at like 170-200 degrees farenheight and the middle two cylinders were at like 750-770 degrees farenheight. when we messed with the idle air screws it really didnt make much differance.
i really need some help. Could this be because of the float level. it is the one thing i did not set because i didnt get how the hell to measure it.
Could it be electrical or maybe a vaccum leak. If so where are all the vaccum lines and places to check for vaccum leaks.
Thanks guys,
Dan