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Posted: Sat Apr 16, 2011 12:53 pm Post subject: Crazy redhead from Florida
Hello all, I just signed up a few minutes ago, and figured I'd say a little something here to introduce myself. They call me Ian, or Cletus, or Jewbacca, or, well take your pick. I'm the current owner of a 79 CB750K model with a few tricks up her forks. I've had it for about 8 months now, and currently she's in about 200 parts on my garage floor. Kind of in the middle of a resto-mod thing. Original idea was to go full blown "cafe" style, but the more I work on it, it's beginning to become a cafe/track type of collaboration. Few of the mods are the following:
1982 Nighthawk front end/wheels/triple trees/front brake swap
Mid-90's Ninja 500 rearsets
Pod filters
4-1 header with 6-shooter megaphone muffler
Re-jetted Keihins
+2/+1 JT Sprockets
Everything else has been basically cosmetic up until now. Lots of sand-blasting and painting going on, hopefully soon I can start putting it all back together. So without wasting any more of your time, some pics:
What I started with
The pile of parts I ended up with
Frame is painted with textured metallic, soon to be clear coated
Decided to give some color to the carbs
Just got these mounted today
Goal date is mid-late may, possibly early June depending on work schedule. If you have any questions, feel free to ask. I work in a machine shop (not my own unfortunately) so I was able to make a lot of my own pieces. To this point I think I've ordered about 80% of what I need to finish it, now it's just starting the building process and figuring out what's left. Hope to get to know some of you and hopefully I can help somehow with someone else's build.
Joined: Feb 05, 2007 Posts: 423 Location: Manchester,Mi
Posted: Sat Apr 16, 2011 2:28 pm Post subject:
Welcome to the site. I am a dohc honda guy with several of them. cb1100f.net or the 900c site will have much info for you. You can bolt on an alum '80 -'83 gs or 83 cb1100F swinger on that bike to allow a wider wheel/tire set up. cbr 600 F2/F3 works good. And the 17" wheel will get you todays good rubber and a BIG tire selection. CV carbs(vacume lift) will not work with pods as you need the vacume from an airbox. Flat spots and bad millage. Not to mention slower performance. Direct lift mikunis or CRs work great with pods or velocity stacks.
Well, I was able to fit the 3" x 16" in the rear from a 82 750 Nighthawk and wrapped both wheels in premium Pirelli Sport Demons. I lucked out on that. As far as the pod filters and gaps in the accel, I haven't noticed any gaps or bog-spots when it was running before the teardown. The re-jetting and open exhaust I think might have helped eliminate that, seeing as how I'm the only one ever to NOT have that problem, maybe I live in a separate dimension or something? Hahaha!
And as far as the red color, thank you. I am of the belief that there's just no better color combo than bright red and gloss black.
Joined: Oct 02, 2006 Posts: 2050 Location: New Britian, CT
Posted: Sat Apr 16, 2011 3:25 pm Post subject:
You can run pod filters on a DOHC Bike, but you need to have a Dyno to set up right. There will be a loss in performance. Whenever I have a DOHC honda airbox, they are gone. Good luck with the project. It is nice to see someone do something other then Cafe a bike.
but not 100% ..i like my bikes to work correctly and not half assed
I've heard this from countless sources. And, while it is difficult to get the CV carbs to run correctly with pods, it's definitely not impossible. I have had the carbs bench, vacuum and flow tested and A/F monitored by a highly respected shop in town. If they're not running 100% I'd be surprised. You're always going to have to compromise somewhere in order to gain somewhere. There's no final, end all be all answer. As for me, I decided to give up a bit of high end speed to gain a bit of low end umph, and had the bike jetted accordingly. Most of my driving is stoplight traffic, and I only hit the highway maybe 5% of the time. I'm not a stunter, nor do I drive 100+ mph on the crowded highways, so I wasn't concerned with losing performance at 8000 rpms. My bike would rarely see that anyway. One day, I'm sure I'll upgrade to some CRs or CVKs or even some Mikunis, but right now, the pods I got on are fitting the bill just fine.
Joined: Feb 04, 2007 Posts: 2366 Location: Moving to Granada Hills 818
Posted: Sun Apr 17, 2011 3:08 am Post subject:
It will never work correctly with PODS, especially those cheap shit Emgo $6.50 a piece PODS aint gonna work.
You can get close to working properly with many hours and dollars on dyno tuning work and it is still not give 100% as originally desinged and then they are gonna look stupid as hell with PODS filters and everyone is going to laugh at you unless they are friggin stupid too, then they'll cheer you and swell your head.
These are not your normal CV carbs, the slides are huge & heavy almost solid aluminum and without the perfect flow causing the proper vacuum lift for all 4 slides, you will be chasing you own tail.
CR carbs don't need an air box neither do FCR carbs but, they do need velocity stacks with screens to keep birds and low flying planes out of your carbs.
Good luck finding Mikuni round slidews, they are more rare then hens teeth. _________________ Ray #1
71 CL350K3 Scrambler
79 CBX
10 VFR1200F
bakmanrayman [at] yahoo [dot] com fasterspider [at] gmail [dot] com
Joined: Oct 02, 2006 Posts: 2050 Location: New Britian, CT
Posted: Sun Apr 17, 2011 5:36 am Post subject:
I agree with you 100%. But most people who put pods on a DOHC Honda, don't realize that they are going to lose performance, and the bike is not going to be 100%. Even if you do everything right, set up on a dyno,etc. the best you are going to get is the bike running at maybe 75 to 85% of its performance versus the stock airbox. Those carbs aren't your mother's regualar CV carbs. As for the loss in performance I am being conservative.
Joined: Feb 05, 2007 Posts: 423 Location: Manchester,Mi
Posted: Sun Apr 17, 2011 7:24 am Post subject:
Just go to the cb1100F.net site and do some reading. There are many motor & suspension mods you can check out even though you have a K bike. It just won't be as good looking as an F _________________ 79 CBX
yamaha razz
83 1100F
82 900F
78 gs1000
82 gs1100E
2 82 mb5
81 Honda cub
"Its a long shot with a limb in the way
but it beats suckin pond water"
-Jed Clampett
Let me also state that I was not the one who put these pods on the engine, it came with them on there, so I didn't buy them with the thought that they would give me a bunch of performance. I didn't buy them at all actually. Yes I know that these Keihins in particular do not react well to pod filters, and are a bitch to get dialed in "just right". That's not my goal here. I'm not building a race bike. If I was I'd buy a 1050 kit, get some head work done, custom grind cam and some Mikunis or some ITB's from a newer liter-bike. But. like I said, until I can afford a grand for a new set of FCRs or CR Specials or find the elusive Mikunis, pods and Keihins it is. I get 45mpg and can keep up with new Camaros til 80mph. I'm happy with those numbers at the moment
Joined: Oct 02, 2006 Posts: 2050 Location: New Britian, CT
Posted: Sun Apr 17, 2011 5:46 pm Post subject:
Don't worry about it. We are just having a discussion about Keihn CV carbs and pods. It happens here sometimes. To be honest I am more interested in the build you got going on as you have a very interesting series of modifications going on. Besides myself there are a few other people who are interested as well. So relax and keep us updated on your project.
Joined: Feb 05, 2007 Posts: 423 Location: Manchester,Mi
Posted: Mon Apr 18, 2011 4:58 am Post subject:
Just trying to help, not trying to hurt your feelings. What we have said is the truth. Learned from years of experiance. Believe it, or not. _________________ 79 CBX
yamaha razz
83 1100F
82 900F
78 gs1000
82 gs1100E
2 82 mb5
81 Honda cub
"Its a long shot with a limb in the way
but it beats suckin pond water"
-Jed Clampett
Don't worry about it. We are just having a discussion about Keihn CV carbs and pods. It happens here sometimes. To be honest I am more interested in the build you got going on as you have a very interesting series of modifications going on. Besides myself there are a few other people who are interested as well. So relax and keep us updated on your project.
Don't worry, no harm done, and no feelings hurt either. And I, myself and excited to see where this rebuild happens to go; I sure have no idea yet! I can definitely take the criticism, both good and bad, and fully understand what everyone is saying about the pod filters on the CV carbs. Like I said, down the road, when I tear into the engine and do a bit of upgrading, the fuel delivery will be getting an overhaul as well.
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