Boggy throttle

[localyokel]

Any tips for a super boggy throttle response? I have a 98 with 6-1 cobras and stock carbs. The previous owner had the carbs rebuilt by Honda due to the same problem, with the OEM exhaust. I drove the bike just a little before changing pipes, and the problem was there but did not seem as bad. Throttle response is quite poor. Only 4k orig miles on this beast.

[F6BANGER]

How long has it sat?

[PhredValk]

A couple of tanks of fuel with Sea Foam could help, and maybe IS carb springs...
Fred.

[Patrick]

I too would look at the carburetor jets and air filter. I'm suspect of being told that the carburetors were cleaned, I always wonder how well they were cleaned. Run several heavy doses of Sea-foam thru it and try to keep the engine speed low [2000 rpm]. Is the poor throttle response all the time, or just at low engines ?

[old2soon]

A 98 with ONLY 4 K has been doing a LOT of sitting. This alcohol gasoline we burn creates a lot of varnish when it just sits. Run a can of B-12 Chem Tool thru it. Most auto parts stores and wally wurld carry it. And when you put the treatment in with a FULL tank of FRESH gasoline keep the R P Ms around 1500-1800 so the treatment gets into the slow circuits. When you get done with that park it for at least a day so the stuff can work. Do that a couple of times and hopefully it will clean it up. As some others have found out IF the chemicals don't clean it up you MIGHT be on the way to a carburetor tear down and cleanup. Try the chemicals first. Keep us updated on how it's going for you. RIDE SAFE.

[valkyt6]

hi
could be the foam insert in the inlet to the air filter box, mine perished so remove all of the foam had a big flat spot on excel until I made up a replacement.
regards greg   

[localyokel]

Any tips for a super boggy throttle response? I have a 98 with 6-1 cobras and stock carbs. The previous owner had the carbs rebuilt by Honda due to the same problem, with the OEM exhaust. I drove the bike just a little before changing pipes, and the problem was there but did not seem as bad. Throttle response is quite poor. Only 4k orig miles on this beast.

First, congrats on scoring a low mileage Valkyrie.

I imagine you actually have 6 into 2 Cobra pipes as 6 into 1 would be a plumbers nightmare...

Need a little more info.  Does the bike exhibit just a flat spot or does it stumble and pop when you quickly open the throttle, then wind up normally?  Or is it something else you're experiencing?

Please give a little more info.  Do you have stock air filter or K&N?  Have you done any mods such as trigger wheel, ECT mod, or inline fuel filter?

Good luck...maybe we can steer you to the solution.

Blew it on my post, 6-6 cobras not 6-1! Everything else is bone stock.  Stumbles mostly off idle at low rpm. Cruising/roll-on is fine. Not familiar with sea foam as others mentioned.