The Spaceman_imp
Road warrior
Methinks so too.The ferret_imp said:Methinks Spaceman was pulling someones leg.
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Methinks so too.The ferret_imp said:Methinks Spaceman was pulling someones leg.
Hmm... thanks Guth.Guth_imp said:Of course, the advantages of and disadvantages of those things designed by the hand of man pale in comparison to the advantages and disadvantages of man himself. In this case, I'd ask what exactly is it that you're looking for from this engine? Only by answering this question can you begin to address advantages and disadvantages when it comes to the CB1100. (i.e. If your not inclined to ride over 110 mph, then the speed-limiter isn't a disadvantage.)calamarichris_imp said:Everything designed by the hand of man has its advantages and disadvantages. As PeeWee Herman says, "Everyone I know in life has a big but(t)...":
~Harleys sound great and you never have to adjust the valves, BUT they're slow, inefficient, and the rear cylinder does not get as much cooling air as the front. (That, and you have to ride everywhere with a serious scowl of determination on your face, as if you are on your way to commit your third-strike felony.)
~Crotch-rockets are light & fast, but the cylinders are bored into the top half of the crankcase (disposabike) and being stuck behind an RV on a twisty road sucks even worse when you're on one of them.
~Vertical Twins (one piston goes up while the other goes down) can rev higher and are generally more efficient overall, but they get lumpy and weak at low rpm.
~Parallel twins (both pistons rise & fall together) are terrific at lower rpm and have a sweet, balanced sound, but they create a pressure maelstrom in the crankcase which inhibits higher rpm power.
So what are some of the advantages and disadvantages of the CB11's engine? Not interested in the smile-on-your-face while riding on a sunny day advantages. Every design has its disadvantages, what are the CB11's?
Heavy weight?
Plastic bits?
Throttle governor?
Less cooling air for #2 & 3 cylinders? (Are they jetted identically with #1 & 4, or richer/cooler?)
How many Harley owners are concerned about riding overly fast or how much cooling their rear cylinder is getting compared to the front? Chances are it's a very small percentage. Conversely, what percentage of supersport class bike owners are concerned with how sedately their bike cruises when not being pushed or even have thoughts of long-term ownership? How many guys with twins are really worried about the lack of low-end or high-end power of their respective machines? For most, these disadvantages from a purely technical sense aren't disadvantages at all. Those who consider such items as disadvantages are more than likely those who didn't properly consider their own needs.
In my mind, you have to have something to measure against (in this case the desired use for the bike) to try and identify the respective disadvantages. My needs are bound to be different from yours and therefore what I see as an advantage or disadvantage might vary quite a bit from you, especially if your not concerned about the "smile-on-your-face while riding on a sunny day" type of stuff. It's honestly hard for me give you much feedback as one of my actual requirements was for a bike that I got as much enjoyment from looking at it when I was off of the bike as I did from actually riding it. What can I say, I went to school for engineering and ended up working for a number of years as a graphic designer, I'm a bit skewed.
I quickly identified two issues with the bike that were a disappointment to me. Thus far these are my only real gripes:
1.) The weight of the bike when moving it around in the garage and so forth. Obviously this can't be chalked up just to the engine, but the size of the engine surely plays a part in this. I'll simply live with this and won't be addressing it further. Once the bike starts rolling, however slowly, I'm good with it.
2.) The tone of the factory exhaust. Simply too peaceful for me. I'm not a fan of loud exhausts, but I do like an exhaust note with a bit of soul if you will. I addressed this by adding a slip-on exhaust from Staintune and I've been very pleased with the result.
Some issues, such as engine longevity, will only be answered in time. People can theorize as much as they want, but until enough units have withstood the test of time and miles (or not), theories will remain just that.
At this point, I can't tell you much at this point about working on the bike. That will change over time as I plan on doing pretty much everything on my own. I'm no expert mechanic by any means, but I've learned a heck of a lot by doing all of my own work on my Hawk GT (the only other street bike I've ever owned) over the past 7 years, and I like the feeling of satisfaction that I've received from that experience. No reason to change things up at this point. If I fail at something, then I can pay somebody else, but until that time comes, I'll keep turning my own wrenches.
With all that said, as mentioned, my Hawk GT is the only other street bike I've ever owned. A 647cc V-Twin and an 1140cc Inline Four don't exactly make for a wealth of experience. Therefore, for better or worse, my expectations are probably far different than many guys here who have owned a wealth of bikes over the years and have a lot more comparables to draw from.
You’re not pessimistic, Ferret, and you may be right. I no longer consider myself a Honda-hater (I created that valve adjustment guide nearly 10 years ago), but before my Superhawk experience (and being told by the Honda technician: “I’m surprised you got this many miles out of it! I’ve never seen a bike with that much.”) I always considered Honda’s reliability unimpeachable. You get an A+ for attention to detail and recall—I didn’t even remember mentioning that. Now I’m more of a bitter old grouch than a hater of one specific brand. When I was young, old guys would always badmouth the new bikes and talk about how their old Bonnevilles, BSAs, and Nortons were so much better, looks like I've finally become one of them.The ferret_imp said:Color me pessimistic, but I don't see you (Chris) being happy with a CB 1100 . Just a feeling. You come in being an acknowledged " card carrying Honda Hater" (see I did read every word of your valve adjustment procedure). You say you want to trade in an EX500 which is rather a milquetoast motorcycle ( but maybe a perfectly fine motorcycle, dont know, never ridden one) but you keep comparing the CB to your "mighty ZX9R " .
The CB is not going to compare to the ZX9. It was never designed to. The CB is designed specifically for the "smile on your face/sunny day sentimentality ". That is what the motorcycle is all about. Honda has built other models for other purposes with lighter stronger frames, sharper handling, physically smaller but more potent motors like the CBR1100XX Blackbird, or CBR1100RR but this bike was built rather heavy, rather slow, not very technically advanced, but in a style designed to appeal to those who impressed enough to own the original inline 4 Hondas, or those who were too young but wanted too. There are what some would observe as flaws in this motorcycle. Plastic used in the tail light assembly, engine covers, and headlight lens. A relatively short service span for valve adjustments, probably ball bearings in the steering head, and probably plastic or resin swing arm bushings if I were guessing. Steel frame, 8500 rpm redline, narrow tires and rims, and speed limited to 112 mph. Barely adjustable built to a price point suspension. Its got a lousy tool kit. It's heavy, it's slow and it costs a lot of money.
It's great that your ZX9 will "still hit an actual 100 mph in first gear" or that "it has a brutal hit at 9000 that still scares you on public highways", but the CB is never going to compete with that. Was never intended to. You seem to be hung up on a performance standard that the CB is never going to match.
There are any number of motorcycles that would seem to me to be more appealing to you... The Kawasaki Versys or 650 Ninja, the Suzuki SV 650 or maybe the new Yamaha FZ-09. Plus Honda makes some very nice, if not very exciting, NC 700 series of bikes for thousands less that would compare more directly to your current dog sled.
I'm confused, you don't seem old enough to want a CB for nostalgic reasons, you admittedly don't like Hondas, you obviously like to explore the outer limits of speed and handling on public highways, you seem bright and intelligent, and you are obviously mechanically gifted... Why are you even considering a CB 1100?
Thanks for the contribution.Dakota_imp said:I thought that this would be an interesting thread titled "design..." yet there is not one bit of discussion on the actual bike engineering design. Three pages of nothing but meandering anecdotal blah blah blah.

I4's are the most efficient engine design on a motorcycle period. I defy anyone to tell me of a more efficient platform. My hopes are flickering that this is just some journlistic poetic license, and a misprint in the service manual.The Spaceman_imp said:Here's my list of design failings of the CB:
1. It's air-cooled. What were they thinking? It's so much easier to control engine heat, and thus provide more power for comparable displacements, with water-cooling.
2. There's no fairing. Riders are exposed to the elements, including wind-blast, rain, and cold. A large, modern fairing would not only resolve those issues, but would also provide a location to install features such as "Infotainment" systems, GPS, satellite TV, etc.
3. No luggage. Where the heck are you supposed to put your hair dryer if you take a road trip? A large top case and side-bags would go a long way here.
4. Chain drive. Are you kidding me? A shaft drive would be quieter, cleaner, and virtually zero maintenance. CB buyers are stuck with cleaning and lubricating chains for the life of the motorcycle.
5. I-4 engine layout. This engine design is simply outdated. A V-4 or horizontally opposed 6 cylinder engine would produce more power and fewer vibrations.
6. Single headlight. Two headlights would provide better visibility for both the rider and surrounding traffic. Shame on Honda for not investing a few dollars more here.
Thanks for that. I'm big Cameron (and Gordon Jennings) fan. I'd read that Cameron article a long time ago. Your "gross oversimplifications" are helpful, however, I disagree with the V4's central-location as an advantage. One of the reasons V's never really dominated the way I's did is the rearward weight bias. They couldn't get the engine far enough forward and even Honda wasn't able to keep it competitive against the I's.DAC_imp said:The only disadvantages for an I4 that I know of came from reading Kevin Cameron (Cycle World.) He puts some people to sleep but he did one article comparing I4s to V4s, mainly in racing applications, and since I own a V4 Interceptor I was able to stay awake for that one.
First, an I4 with a 180* crankshaft has a dead inertial moment twice every rotation as the pistons bottom out/top out at the same time. IIRC, this creates a need for beefier counterweights on the crank. Racing engines where the counterweights were lightened up too much resulted in "shuddering" at corner exit as power was applied at lower RPMs. In the V4, when two pistons are at the top/bottom of their stroke, the other two are in the middle of a stroke, resulting in continuing inertia, and the ability to use lighter counterweights.
With the heavier counterweights and a generally longer unit, the crank has much more of a gyroscopic effect, resisting turn in, and making the bike feel heavier. Again, V4s by nature have a narrower crank and produce less such turning resistance.
As Ferret mentions, the engine is wider in an I4 and can create a teeter totter effect compared to an V4, which is more centralized in the bike like a bowling ball.
Another difference between these two isn't an advantage/disadvantage, just a difference. The I4 makes its power fairly evenly with power pulses like x-o-x-o-x-o-x-o. That's a gross oversimplification, I think, but you get the idea. The V4 is more like x-x-o-o-x-x-o-o. That is also an oversimplification. In racing, the V4's gap in power pulses aided corner exit by acting like a kind of traction control as the "rests" helped the tire reconnect in moments of too much throttle while the bike is leaned over. However, in a street riding application, this has little utility.
Finally, there's the sound. An I4 can have that angry-hornet-riding-a-jet-turbine sound while a V4 has a distinctive growl often described as half of a small block Chevy. Both, frankly, are music to my ears.
Actually, I think the current Honda MotoGP engine is a V5.redbirds_imp said:Strange that Honda has been dominating Motogp with a V4 to everyone's surprise.
And they made it like that to take advantage of some GP rules loophole.DAC_imp said:Actually, I think the current Honda MotoGP engine is a V5.redbirds_imp said:Strange that Honda has been dominating Motogp with a V4 to everyone's surprise.
The Interceptor came out in '83 just after the Magna was introduced in '82. I drooled over both but was a college kid with just enough cash for tuition and an occasional pitcher of beer. (Okay, maybe more than occasional.) I made due with borrowing my buddies GS750e and my future brother-in-law's '82 750SC Nighthawk. I still have a soft spot for that GS - tight and nimble and could rev to the moon - the Nighthawk felt a little heavy and rubbery by comparison.
Anyway, Honda was reportedly surprised by the market response to both those early V4 production bikes. They were trying to homologate the engine and bike for racing purposes and only wanted to to sell enough to get that done. The Interceptor went on to win Superbike for three or four years, I think, in the eighties. And they had to juice the production numbers of the street bikes to meet demand.
Erm... the header in that Honda ad says, "The V4 Engine Story – 35 Years of Technological Evolution and Challenge”redbirds_imp said:Honda surprised everyone when they revealed their V4 this year. The excepted theory, seeing the woes that Ducati had with a V4, was that the new 1000 was an I4. Honda found a way to make the V4 not just work, but dominate the competition.
Honda Motor Co.,Ltd.|Honda Global Corporate Website
Erm... the header in that Honda ad says, "The V4 Engine Story – 35 Years of Technological Evolution and Challenge”redbirds_imp said:Honda surprised everyone when they revealed their V4 this year. The excepted theory, seeing the woes that Ducati had with a V4, was that the new 1000 was an I4. Honda found a way to make the V4 not just work, but dominate the competition.
Honda Motor Co.,Ltd.|Honda Global Corporate Website
It's there, you have to wait for it, but it is there. You do have to get her warmed up though.Deanohh_imp said:I never get a tinking sound when I shut it off. If that's a design objective, their engineering fell short.

Speed govern...? But what if you need to flee a ticket?lola_imp said:Chris, How did you find out about Sintered Cylinder sleeves on the CB1100? The only other person that mentioned sintered sleeves on the CB is the late Kevin Ash. The combustion chamber design on the cb1100 is a pentroof design which is a step forward. Also, the casting on the outside cylinder head has passage ways to make sure all cylinders are cooled down.
I always thought if the engine is aircooled the block would be a closed deck design but the CB1100 is an open deck, there must be a reason behind this.
I really like the simplicity of this aircooled engine. I just installed Samco Hoses on my street triple R with 50K miles and it was a cuss to get to most of the hoses....
I bought the bike because it spoke to me and I didnt even bother to go into detail on how this bike was made... Just total attraction.
The only down side to me personally is the speed govern.
That's not true and I really wish people would stop saying it. Whatever your reason for thinking so doesn't mean it has more power than anyone would ever need. I like my bike, but I definitely wish it had another 20-30hp for getting into the HOV lane without worrying if you're going to get crammed in the butt. On my CBR, that's not any kind of a problem, that thing's a missile. And I don't ride fast, not by any stretch of the imagination. I regularly get 50+mpg on the CB (and 40+ on the CBR). It's just those small occasions when I would really like the confidence of accelerating like I'm entering low-Earth orbit so I know I won't get rear-ended.davidsargee_imp said:All I can say is this bike seems like it was personally designed for me. It has more power than a sane person needs, and it can do, or be adapted to do, just about any type of street/road riding one might want.
As for advantages/disadvantages, I am an older, working class stiff, I do not have enough bank account for multiple motorcycles, (God bless you if you do, but I don't). I wanted a bike that not only looks and runs good, but is versatile enough to go for short rides, or to throw a couple of bags on and ride to the Grand Canyon, (plan to do that this spring, 2300 miles round trip). The CB1100 is by far the most suitable bike for my needs. I am going to ride it for years, take a few trips, etc. Once it is paid off, I might cafe it , then buy another bike for trips, maybe, or maybe not.
Disadvantages, I can't really think of any that matter. That's the point, just ride it, and see where you are when you stop.
This bike is what the gentleman from Australia, (among others), stated in an earlier post, it is a Gentlemans bike. Best UJM on the market, for sure.
Cheers
:beerchug:
In his defense, "enough power" is as subjective as "advantages" and "disadvantages." I used to think my little Harley Sportster had "enough power" before my first ride on a Japbike.AzBob_imp said:That's not true and I really wish people would stop saying it. Whatever your reason for thinking so doesn't mean it has more power than anyone would ever need. I like my bike, but I definitely wish it had another 20-30hp for getting into the HOV lane without worrying if you're going to get crammed in the butt. On my CBR, that's not any kind of a problem, that thing's a missile. And I don't ride fast, not by any stretch of the imagination. I regularly get 50+mpg on the CB (and 40+ on the CBR). It's just those small occasions when I would really like the confidence of accelerating like I'm entering low-Earth orbit so I know I won't get rear-ended.davidsargee_imp said:All I can say is this bike seems like it was personally designed for me. It has more power than a sane person needs, and it can do, or be adapted to do, just about any type of street/road riding one might want.
As for advantages/disadvantages, I am an older, working class stiff, I do not have enough bank account for multiple motorcycles, (God bless you if you do, but I don't). I wanted a bike that not only looks and runs good, but is versatile enough to go for short rides, or to throw a couple of bags on and ride to the Grand Canyon, (plan to do that this spring, 2300 miles round trip). The CB1100 is by far the most suitable bike for my needs. I am going to ride it for years, take a few trips, etc. Once it is paid off, I might cafe it , then buy another bike for trips, maybe, or maybe not.
Disadvantages, I can't really think of any that matter. That's the point, just ride it, and see where you are when you stop.
This bike is what the gentleman from Australia, (among others), stated in an earlier post, it is a Gentlemans bike. Best UJM on the market, for sure.
Cheers
:beerchug:
Otherwise, the bike is nearly perfect. Except for the hand grips. They suck a special kind of suck.

The thread title probably could have been better. Why don't you start a discussion on what you want to discuss?Deanohh_imp said:The thread title probably could have been better. Why don't you start a discussion on what you want to discuss?Dakota_imp said:I thought that this would be an interesting thread titled "design..." yet there is not one bit of discussion on the actual bike engineering design. Three pages of nothing but meandering anecdotal blah blah blah.