Old Style Kerker 4-1 Fitment

[Fire-medic]

So the Dreamliner gives you a lot of experience w/composites? How-soon 'till you shower us w/VMax gossamar-weight components, stronger than metal?

Did Spirit get spun-off after some leveraged buyout?

 

[one2dmax]

We have plenty of folks with the experience out here but I haven't played with it much myself. We were sold off right before some of the higher ups retired. Nice little bonus they got from that.

Sean

 

[texmax]

Got some Tulsa Spirit guys at our Gulfstream facility in Dallas finishing up some mods on the G280 wing.

 

[44boyd]

I know this is an old thread, but what tools did you use cut/bend the tabs?

 

[Bruiser1198]

When I cut my tab off I used a Dremel tool with cutting wheel , took a little time but worked and bent the other tab over using a small sledgehammer 2 wacks and it was as good as gold! . Hope this helps

 

[44boyd]

Ok got mine installed, getting air blowing up from the rear pipes underneath. I tried tapping them with a rubber mallet but no success. Gotta wait til Sunday to try again, might be hitting somewhere. But they sound awesome, chuckled like I was about to get yelled at by my wife.

 

[Rollie]

Sean, if I am at sea level here, and do decide to buy & fit the Kerker chrome 4/1, can I use the 147.5 main jets? Stock carbs, not even having the plugs in them removed yet. K&N #YA 1285 single filter, though I do have the K&N pods sitting on a shelf. Stock ignition, everything related to intake & ignition, engine innards, you get the idea. My friend is getting ready to reassemble my carbs.

Go with Sean's jet kit and take full advantage of the Kerker.

 

[PATMAX]

I helped a Vmax buddy cut off his tabs and footrest mounts with a plama cutter and boy I was impressed. Very quick to cut, very accurate with a small kerf or cut line. The smoother your hand, the neater the job. A minute or two with a grinder wheel and you would never know something was cut off. This was a cheapo plasma cutter. Once again, it pays to have the right tools.

 

[Fire-medic]

Go with Sean's jet kit and take full advantage of the Kerker.

"Rollie," thanks for weighing-in. I am far-beyond that post in-terms of what I have acquired. Now I have a UFO 4/1 ready to go. For the Kerker 4/1, I would have to cut my centerstand tab, which I really don't want to do. I also don't have the stock Kerker can, but I did acquire some slightly-used literbike sportbike cans I was going to choose-between to have connected to the Kerker header pipe in an effort to try and avoid the sawzall or cutoff wheel removal of my centerstand tab.

I also have a set of Dynojet Stage 7 carbs being refurbished by my local shop. I have lots of things going-on in family life which have prevented me from being able to do carb work, plus, he has a better place to do the work than do I. My wife has been carping at me enough about the Mod Monkey as it is. but, since I just dropped some significant change to get her timing belt & H2O pump & seals replaced, along w/some misc. other car maintenance stuff done, she has to cut me some slack. I used to do maintenance like that myself, but caring for my elderly father-in-law won't allow me to make plans to work on much.

 

[44boyd]

Re: Success!

I put the down tube on the rear cylinders and tried to get it to slide on, not happening! So I took someone elses advice and cut three slits in the top of the rear slip joint and tried again... voila! First time, a little pressure and up it goes, everything settles in place and feels good!

Did you cut the down pipe or the collector pipe? How big of slits?

 

[bikedave99]

Re: Success!

Did you cut the down pipe or the collector pipe? How big of slits?

I cut the slits in the female part of the connection... probably about an inch long. Enough to give the flexibility to get it to mate then used a clamp to tighten it back up

 

[44boyd]

Re: Success!

I cut the slits in the female part of the connection... probably about an inch long. Enough to give the flexibility to get it to mate then used a clamp to tighten it back up

hmmm, I was thinking the male so they'd bend in there. Thanks for the quick reply.

 

[firebolt]

Resurrecting this thread because I am wondering if anyone ended up fabricating a way to get the center stand back on with the Kerker header?

Or, do I just need to suck it up and go buy a lift - and modify it to get around the exhaust? If so - any semi reasonably priced recommendations?

 

[one2dmax]

I'm sure the tabs could be reconfigured on both the frame and stand though it will look goofy with it sticking out like a sore thumb on the side with no muffler.

 

[firebolt]

Yeah, form over function there. Probably time for a lift anyway!