Thread: Pulled all 4 carbs

Wish mine had only 2
2002 F50 4 stroke ?


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It's the meds he's seeing double

Did you order the sync tool with the metering rods that move up and down or the analog gauge type? or something else? I only ask cause I'm pretty sure your carbs all call for different vacuum from one another, and not like most where you balance to even...

Rods move up and down
Saw a mechanic using it on u tube
Carbtune pro 4 column


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https://m.youtube.com/watch?v=KV5PKfdzKNE


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Originally Posted by midcarolina

Did you order the sync tool with the metering rods that move up and down or the analog gauge type? or something else? I only ask cause I'm pretty sure your carbs all call for different vacuum from one another, and not like most where you balance to even...

Thanks
Tell me what you are taking about,
Thought all carbs were to be balanced to each other


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Thats a really good one... I read somewhere that the manual calls for x vacuum on bottom carb then a different amount on others...I dont recall the numbers and it may not be that much difference, it's tough to get em dead nuts any way, if I can find the info again i'll post it, It stuck with me cause I was surprised, i've always balanced the carbs on bikes or boats......

I've been off line and could have let you use mine, it's somewhere here. Isn't that F50 a 3 cly, I though the F50 and F40 were both 3 cly. and I think that my shop manual said to match threm. I think that I may have the OEM manual on a F50 also.

Found my F40 book. Measure the #3. Adjust the throttle valve adjusting screws part #5 on both #1 & #2 carbs until they are within the specified variations. example, if #3 is 300 mm Hg then #2 should be 300-5 = 295 and #1 would be 300 -10 =290 mm Hg Hope this helps. If I find my F50 manual, I'll see if it says the same thing..