Need some help with a 1980 Suzuki GS850G with fouled carbs

[GSX1000E]

I have been using oil on them for over two decades. Do what you wish with yours.

[londonboards]

Drilling out the hole in the carb slides is, I believe, a modification used when you install the jet kits. It would equalise the pressure on those rubber diaphrams quicker than the normal size holes. This is done to make the throttle slides snap up faster which could be called "faster throttle response".

I am not sure that if you take the carbs back to original jetting with standard airbox that these oversized holes will interfere with the operation of the bike or not.

Someone one here will be able to clarify this I'm sure.

Greetings

[fer_gloko]

Those are not the same ones I'm getting some that are generic filters from a manufacturer around San Francisco, the shop that I go to gets wholesale price. I didn't want to spend $ 130 on K&G filters. The shop re emended the other filters if I didn't care about the brand.

[Grimly]

Drilling out the hole in the carb slides is, I believe, a modification used when you install the jet kits. It would equalise the pressure on those rubber diaphrams quicker than the normal size holes. This is done to make the throttle slides snap up faster which could be called "faster throttle response".

I am not sure that if you take the carbs back to original jetting with standard airbox that these oversized holes will interfere with the operation of the bike or not.

Someone one here will be able to clarify this I'm sure.

Greetings

Interesting. That would mean the standard, small hole, would be the simple way of having an SU damper equivalent. Enlarging the hole would be akin to running thin or no oil in an SU dashpot, which some do for some racing or other applications.
Leaving the hole large, but with standard jetting, would (perhaps I push the analogy too far) effectively do away with the damper and lead to lean stumbles on acceleration, I believe. The whole point of the damper is to damp fluctuations of the piston, but also to provide a reluctance to rise on throttle-opening, thus ensuring extra fuel is drawn out of the main jet and provide an accelerator pump effect.