Author Topic: What to do with my Kerker 4 into 1  (Read 1301 times)

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Offline Reganator

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What to do with my Kerker 4 into 1
« on: March 05, 2013, 03:19:47 AM »
I'd imagine this should be pretty straightforward.  I just want to collect some opinions.  I recently picked up my first CB750, a 71 K model for a sweet deal of $500 bucks.  As it turns out, it has a Kerker 4 - 1 on it.  I've been doing quite a bit of work on this bike, and I'm getting to the exhaust.  The pipes have some minor rust spots on them.  Nothing to be to concerned about, but it is something I'd like to arrest immediately.  I'm wondering what I should do after sanding and treating the rust.  I'm considering painting with a high temp paint or wrapping, neither option being something I'd exactly say I'm thrilled about.  If anyone here has some alternatives, I'd love to hear them.  They are presently flat black.
Frankenbike CB750: 
71 K1 Frame
72 K2 Engine
75 F0 Carbs:
     #40 slow jets
     #105 Main Jets
     Stock needle and settings.
My-neighbors-love-me-Kerker 4 into 1
Stock airbox

The best way to make a small fortune on the stock market is to start out with a large fortune.  Trust me, I'm an actuary.

Offline wowbagger

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Re: What to do with my Kerker 4 into 1
« Reply #1 on: March 05, 2013, 04:08:00 AM »
I am planning on pulling mine this weekend and having them ceramic powder coated. I got a quote from a local shop that it'll run about $50 to get them coated. I just need to sort out how to clean them up first. I think I'm going to try setting up a soda blasting rig. I'll post some pics once it's done.

Offline Stev-o

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Re: What to do with my Kerker 4 into 1
« Reply #2 on: March 05, 2013, 05:27:50 AM »
Ceramic coating is certainly a great option, although it can beca little pricy.
I have two Kerkers, one is chrome plated which I really like. The other is flat black, but that bike will be for sale soon.
Chrome plating is very expensive, maybe $400.

Here is a link to a well respected ceramic coater, will give you some ideas and info.

Wow bagger - $50 sounds really cheap, you sure it's not just powder coated a ceramic color?


http://www.jet-hot.com/coatings/jet-hot-extreme-1300/
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline wowbagger

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Re: What to do with my Kerker 4 into 1
« Reply #3 on: March 05, 2013, 06:00:59 AM »
I was suspicious about the price but I was specific asking for ceramic coating and the guys claims that's what he'll put on. I'm going to check out some of his previous work before I let him at mine.

That said, I've always assumed I had a Kerker but never had it confirmed. This look  like a Kerker to you or something else?
http://minus.com/mus28xcHJWsIE

-Scott

Offline Stev-o

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Re: What to do with my Kerker 4 into 1
« Reply #4 on: March 05, 2013, 06:40:27 AM »
That's a nice pipe but doubt it to be a Kerker.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline wowbagger

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Re: What to do with my Kerker 4 into 1
« Reply #5 on: March 05, 2013, 06:48:11 AM »
Ah we'll, guess I'll post it in the exhaust ID thread and see if anyone can name it.

Offline bwaller

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Re: What to do with my Kerker 4 into 1
« Reply #6 on: March 05, 2013, 07:52:05 AM »
I had a Kerker treated with a ceramic coating for my racebike. (titanium grey) It's been great, is easy to clean, doesn't discolour, and it's cold to the touch within three minutes. They bake the carbon out of it & do inside & out. I think I paid $165.

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What to do with my Kerker 4 into 1
« Reply #7 on: March 05, 2013, 11:14:52 AM »
The coaters here do the prep blasting. 
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Reganator

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Re: What to do with my Kerker 4 into 1
« Reply #8 on: March 05, 2013, 11:24:37 AM »
Ceramic powder coating eh?  I should have known this forum wouldn't let me down.  I had never even thought about that.  I'll be looking around Saint Louis to see if anyone offers that service.  Thanks for the suggestion.  Now If I could just find a way to not get pissed off every time I see clip ons when I picked clubman bars and clip ons were obviously the better choice.

Anyway, if I am unable to find someone who can do ceramic powder coating, or do it for a reasonable price, I may do the wrap.  I'm not wild about potentially having to tune the carbs more, but I do kind of like how it looks.  Anyone have experience with that?  I'm more familiar with doing it on cars, but I have also heard that it can tend to rot the exhaust.  Not sure what to believe.
Frankenbike CB750: 
71 K1 Frame
72 K2 Engine
75 F0 Carbs:
     #40 slow jets
     #105 Main Jets
     Stock needle and settings.
My-neighbors-love-me-Kerker 4 into 1
Stock airbox

The best way to make a small fortune on the stock market is to start out with a large fortune.  Trust me, I'm an actuary.