[plucas_78]

It's lean.

rookie translation puh-lease?

[BlackKat17]

I havn't done a search on this but it may very well be a common problem.
I bought my 2006 Kat 600 brand new in '08, kept it maintained per manufacturers recommended schedule and it does the same thing. Maybe not as badly as you described but it does get on my nerve sometimes.
I would describe my problem, which got worse with the addition of the slip-on, as more of a " dead spot " just past idle when I slowly roll on the gas. Its more pronounced when the bike is cold but its always there. My problem only bothers me when Im riding real slow but in normal riding I throttle right past the dead spot so it goes unnoticed.
I did mention it in a post some time ago and one of the premiere "experts" (God rest his soul) Cyber Poet said the problem could be a vacuum leak.
I just learned to live with the problem. Now that my extended warranty is up, Im considering a carb jet kit and ignition advancer. Hopefully this will solve the problem and give me a little better throttle response overall.

[plucas_78]

I havn't done a search on this but it may very well be a common problem.
I bought my 2006 Kat 600 brand new in '08, kept it maintained per manufacturers recommended schedule and it does the same thing. Maybe not as badly as you described but it does get on my nerve sometimes.
I would describe my problem, which got worse with the addition of the slip-on, as more of a " dead spot " just past idle when I slowly roll on the gas. Its more pronounced when the bike is cold but its always there. My problem only bothers me when Im riding real slow but in normal riding I throttle right past the dead spot so it goes unnoticed.
I did mention it in a post some time ago and one of the premiere "experts" (God rest his soul) Cyber Poet said the problem could be a vacuum leak.
I just learned to live with the problem. Now that my extended warranty is up, Im considering a carb jet kit and ignition advancer. Hopefully this will solve the problem and give me a little better throttle response overall.

Vacuum leak? Sounds expensive. I also find it hard to fathom that this problem is so pervasive on a bike with a "rock solid" motor

I did search this originally, but didn't know enough to narrow it down to a keyword. Hopefully, this thread will evolve into a solution thread and then become useful in a search.

[BareKat]

There was a recent discussion about ethanol gumming up somebody's carbs... can't remember who.

They used marine fuel stabilizer to help clean the gunk...

[ironhorse]

Make sure there's no rust in your tank/carb/fuel system. The jets are tiny, doesn't take much to plug them and it could quickly get worse.
There are many, many, wonderful posts on rust in the tanks/carbs/etc. The thread search will be your friend.

[plucas_78]

Anyone use B12 Chem tool for this type of problem?

[nicholaskumm]

I took took my carbs to get an ultra sonic cleaning. put them back on and no more hesitation.

youtube ultra sonic cleaning. its amazing

[EEEMB]

She's been sitting for a few days because of the rain storms we had here, but I took her out today, started her normal with the choke and let her warm up a bit before rolling out. No hesitation at all today. Haven't run the seafoam through her yet either. Seems to be Intermittent at this point. Or a function of how it is started?

[tejasandre]

Look in your tank. If there's stuff floating around in there it's in your carbs too.

[EEEMB]

I took a look inside my tank, didn't see anything floating around. It's actually surprisingly clean. I was expecting to find a complete mess.

[ep87]

Getting into this discusion a little late but I had problems on my pre 750
that matched yours. I sync'd the carbs and it did the trick.
Bought a pro-motion carb sync tool and it was easy, most time consuming thing was removing the fairings and tank.

Used to have a home built sync tool, but I really like the size and ease of use of the pro-motion unit.

Good luck Richard

[plucas_78]

problem wentway. maybe i had some **** in the gas tank, ****ty gas

[EEEMB]

Turns out that a spider decided to build a nest in the vent tube between the number 3 and number 4 crabs. Effectively blocking it and causing the bike to sometimes run on just two cylinders. Damn spiders. cleaned it all out, put it back together. Good to go.

[plucas_78]

Turns out that a spider decided to build a nest in the vent tube between the number 3 and number 4 crabs.

Did the spiders and the crabs get along? They are cousins biologically speaking.

[EEEMB]

Haha I did write crabs by mistake. And no, their fighting made a big mess in my carbs. No but seriously, runs great now. i dont think it ever ran this well. Usually those tubes dont get clogged on streetbikes. Usually dirtbikes have that problem.