New Exhaust Carb Tuning Issues

[thor_eyerdhal]

Just as Eric describes it....yes it will often times clear itself up, and sounds like what happened to yours.

I have seen lots of junk in float chambers that couldn't have passed thru the fuel filter....but there they are, sitting on the bottom....how did they get there..........:confused2:

This stuff was collected from some customer carbs.

Yes, you can find the same in carbureted cars fuel bowls too ( i ve got the same in my mustang carb).
This is sedimentation, very fine particules pass thru filters, seat down into carb bowls and agglomerate and grow up.

 

[Traumahawk]

I agree with the guys with crud from fuel line deteriorating over time, ethonol fuel doesn't help also.
Danny, the extra small clear filter we were adding I think is a must and does help minimize those issues.

One thing that seemed to help with mine, was having the regular filter before the pump, and adding an additional (and I believe its 1/4) filer AFTER the pump and before the carbs. Ive got it plumbed into maybe 18 inches of fuel line so there isnt any sharp bends to restrict fuel.

 

[dannymax]

I agree with the guys with crud from fuel line deteriorating over time, ethonol fuel doesn't help also.
Danny, the extra small clear filter we were adding I think is a must and does help minimize those issues.

I totally agree with you Rov....these cone shaped K & N ones seem to work pretty good.

https://www.summitracing.com/parts/knn-81-0221/overview/

 

[Jan Bee]

One thing that seemed to help with mine, was having the regular filter before the pump, and adding an additional (and I believe its 1/4) filer AFTER the pump and before the carbs. Ive got it plumbed into maybe 18 inches of fuel line so there isnt any sharp bends to restrict fuel.

6mm
https://www.google.com/search?q=fue...=EAZgWJqcKsfn0gKW-4LIBQ#imgrc=8-UnmQcvQzSRZM:

 

[Bill Seward]

I had a double filter on my bike, one on each side of the pump. The damn molded hose right at the carbs deteriorated on the bike, past where I could have added a filter.

 

[Traumahawk]

I had a double filter on my bike, one on each side of the pump. The damn molded hose right at the carbs deteriorated on the bike, past where I could have added a filter.

I think Joe Alorio had the same problem. He also had an 85.

 

[Bill Seward]

I hope my coronary arteries are in better shape than those fuel lines were...