Welcome Kurt!
I'm trying to figure out how the DSPO mounted a 180 on that thing in
the first place! The tire profile must have really been out of
whack.
Matt
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Being backyard mechanics of course, though I'm not a big fan of clip
type links either. Most bikers do much of their own work and the lot
around here are above average but I'm the sort that will remove and
tear down the entire engine just to fix an oil leak (read: because I
could). :)
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Heheh Kyle
My buddy is big in MGs and well pretty much anything that's old, ugly,
and slow. :) I've helped him hunt down more than my fair share of
wiring gremlins in those cars. That along with some of the other
engineering (I use that term lightly with the British) decisions has
cured me of
Ga my eyes! Someone get me some bleach and then some brake
fluid
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If you think it's fuel, take the slides out of the carbs. You should
be able to see into the throat of the carbs. Pour a little fresh gas
in the throat of each carb, replace the slides (and anything else
critical), and give it a spin. It oughta light up and run for a few
seconds. If it runs
Very nice, I wish I'd gotten a picture of mine before and after that
hail storm, looked like I'd been mud bogging with it :D Though it is
very shiny right now thanks to a leaking valve cover I didn't notice
for 2 miles (everything is coated in oil).
A few years ago I was heading up route 90 into
Nice! Might want to find a friend with a compression tester or rent
one from Autozone and see if the rings were damaged at all but I'm
glad to hear you got it unstuck. Can you see the condition of the
cylinder walls through the plug hole? By the way it will turn much
easier in top gear (6th).
Yeesh slow it down man, can't tell what you're doing half the time
because the video is moving so fast.
What helmet camera did you get? I've been curious about those for a
while.
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Hummm I may be getting a new Christmas present, that looks like a lot
of fun. And boring or not I prefer to see that sort of thing in real
time, lets me see the decision process other people (and me
eventually) use from a third person perspective. Back when I was a
member of Stromtrooper one of
Well that sucks. If you get so inclined try taking the starter off
first just for giggles and try and turn the motor again.
I once helped work on a tractor that appeared to be seized. Turned
out the starter clutch had destroy itself and was preventing the motor
from turning. When we opened
Kyle can you hook up an external mic to that particular camera you
bought? I've been watching helmet cam videos all day and there aren't
many of them you can hear the engine well on. I was thinking a remote
mic mounted down on the handle bars behind a front faring would
probably reduce almost
To turn it by hand remove the shifter arm (one bolt) and then take all
the 8mm case bolts off the left cover of the engine. This will expose
the flywheel, turn the motor with the center bolt which I believe is a
17 or possibly a 19mm bolt. Make sure it's out of gear or on the
center stand and
Sigh. no good deed goes unpunished. I sold Noah the oil filter
cradle and bolt off that bike a while ago and tonight the filter bolt
rounded and now has a new hole with an easy-out sticking out. I hope
he still has a spare.
Murray I yanked the headlight assembly off the parts bike and the
You need the metal ring that screws in over the uni-bulb and the
entire backing assembly? If I don't have that right you can go to
bikebandit.com, type your bike in, and go to the OEM section to bring
up a diagram, just point out the exact parts you need. I have a '79
CM400A parts bike which I'm
While I'm more of a metal and hard rock guy I like Jet Airliner by
Steve Miller Band when traveling. Other than that gimme some Sabbath!
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The one that can pin threads to the top of the board. :)
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Quick everyone get out your tinfoil hats and start singing Neal
Young! Ohh wait wrong forum.
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Paul I think this needs to be stickied. Sean I'm over in Painesville,
drop me an email sometime and we'll go riding. I'm usually free on
Sundays. I don't believe Skip is still part of the group, he last
posted in '08
Matt
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Bahh you'll have to excuse me I'm terrible at getting jokes specially
when it's just text. I mentioned that though because I've seen it
done. This idiot I used to work with would do that with his GSX-R600
and do burnouts, I even saw him do it with the company's tow motor
once.
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I went down to the range with my rifles last Sunday. I load em in my
guitar case, bungee them horizontally on the passenger seat and then
bungee my duffel bag with all my ammo and supplies on top. Works
pretty well, the only catch is the muzzle of my Mauser sticks out of
the case. I take the
Ahh very nice with the socket. I cheating around it another way by
grinding out a cheap wrench til it fit and then using a piece of pipe
on a crescent wrench to hold onto the shank of the ground wrench.
Worked like a charm except retorquing that nut required someone else
to hold onto the other
I generally dislike the big box stores but Lowes is one of the few I
goto, if only because the small hardware store I used to work in is
closed at night when I usually need something badly. Our hardware
store has a fantastic Hilmann fastener section and the place is only 5
minutes from my house,
I hate that feeling that someone else has been in my vehicle, it
almost feels dirty. I lost about 30 CDs from my car a year or two ago
like that, they stopped just short of damaging the radio or dash
before something scared them off. My sympathies.
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I love my 450, it is a fantastic commuter and learner bike and has
more than enough power for riding around town or country roads but I'm
finding more and more that the torque just isn't there for long
periods of slab riding. I changed the final drive ratio and that
helped but the other problem,
I was shopping around for my first bike not really knowing what I
wanted. Well I knew what I wanted I just knew I wasn't going to get
it. I knew I wanted something more than a 250 but not a 1000cc sport
bike to learn on. Sifting through Craigslist in December a 450
Nighthawk caught my eye after
Exactly what I was going to say. Those bikes are cheap and the value
has been pretty constant. Buy it, ride it, sell it and you'll only be
out DMV fees and perhaps a little price reduction to get it sold
quickly. Heck leave your machine at home or at a relative's in
storage til you get back.
Paul I've looked at the Wings and while I do like riding long
distances I really prefer the do it all bike and I do so like carving
corners. Unfortunately more than one bike is out of the question
where I'm currently living hence the one does all thing, besides I'd
feel guilty leaving one in the
Javier and Kyle pointed out all the reasons I feel the way I do about
the situation with one exception. While I agree doing things like he
does in the beginning of the video in traffic really really stupid and
yeah he does need a good smacking for it, note what he was doing while
the cop could
That CX is definitely not a rider especially considering how rare the
turbo 650s are. I've been looking at a Magna as a replacement for my
450. The V4 intrigues me as does the anti-dive brake system. My 450
is a blast but it's just too cramped and doesn't have enough cubes for
any serious
There are other reasons too. Power to weight mostly, or power to cost
anyway. It's only recently that we've been able to make a 4 stroke
diesel that even comes close to a good gas motor (especially
motorcycle engines) in terms of power to weight. My 450 motor weights
80-90lbs (I've had it out)
Awesome on that first one I'd have sued that guy and state from the
get go. As pullover stories go, I think this one is my favorite
http://lifeisaroad.com/stories/2005/11/16/everybodysACritic.html
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Hummm lemme go up the barn and dig out my factory shop manual, oughta
clear up the starter question.
From what I remember there was some debate as to whether or not the
450 was produced in 1984. I believe it wasn't sold in the US but was
in Canada, however that's just my hunch.
I don't know
It never ceases to amaze me how that book can contain so little
information and be that thick. My dad gave me a factory service
manual for '82 to '85 450s that he found somewhere and it's not
terribly helpful. That Clymers manual is probably you're best bet and
if you can't find something just
That thing will likely need a complete rebuild, or at least a complete
tear down and inspection. I agree with your assessment that some
idiot used way too much silicone and it got loose in the case and
probably blocked off the feed line to that scored cam. Look at the
wear on that sucker, it
He built it with his own hands, bad or not in our eyes, you have to
admire that. Though I'll admit the bungee cord that seems to be
holding the gas tank on has me concerned. :D
That aside that 350 Four is one sweet little engine. My cousin has
one of those and it is a blast to ride. That
Welcome Frank, I replaced the valve cover gaskets on my 450 back in
the winter and they still drip a little. Not a big deal as far as I'm
concerned. I never smell smoke even at a stop light, it's just
aesthetics. If it's really bugging you or they're dripping a lot
replace them and\or run a
Jeese that'd have been fun if you spilled. Fawhoosh
While not particularly impressive I did bungee a pair of CV axles to
my passenger seat a few months ago. Did the same with a bag of ice
the other day, it was about 3 miles home less than half the bag
entered the cooler as a solid.
On Jul 4, 11:59 pm, pa_s...@verizon.net wrote:
That looks GREAT! Killer Shot!
Heartily agreed, that is how a motorcycle is suppose to look. Reminds
of that Wikipedia picture of the 919
It begs for the wind.
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I've got a '79 CM400A that is getting put up on Craigslist as a parts
bike here, shortly. I'll check when I get home tonight if the filter
cradle is a direct swap with my '82 450, if it is gimme $25 plus
shipping and I'll have it on you're door step asap.
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Joey you doing that with the stock seat? I pulled 180 miles a month
ago on my 450 with that thing in about 4 hours. After an hour I was
really hurting and had to get off for a bit. 10 minute break and when
I tried to sit down again I couldn't put any pressure on the seat! I
had to stand on the
Sounds normal to me. A fuel injected engine will usually hold a high
idle for a few minutes after startup. My 95 Accord sits at 1700-2000
for the first 30 seconds on a chilly day and will stay at 1300 til it
gets to temperature. Take a video of it if you think it's really
something wrong but
Wow, proof read and then proof read again. That last word should be
separately. I was running out the door as I was typing that. Saw the
rain moving in and wanted to get some riding it before it hit. :) I
was saying the chain does not come with a master link, at least mine
did not, and you
Really can't see any reason it wouldn't. They seem to have done their
homework designing that thing. They have the right number of LEDs
ganged together to consume 12V and the much lower current draw doesn't
matter like it would with turn signals and for $26 you're not out a
whole bunch if they
I figured since I've been trolling around here for a while I'd make a
formal introduction. My name is Matt, I've been riding for about 4
months now. I've been a backyard wrench turner since puberty and
finally decided to get into motorcycling. I bought an '82 CB450SC in
December for $950 and
Part of my reasoning here it that if I get a varying head wind and I'm
in 6th I've got the vary the throttle between 1\4 and very nearly 1\2
just to keep pace at 65+. In 5th under the same conditions I don't
need any conscious throttle inputs to maintain speed but I'm turning
nearly 6 grand. At
Yep I keep a small stock pile of spark plugs and oil filters along
with an air filter up in the barn. A few items you may want to
consider having around just incase: spare clutch cable, levers for
both sides, an air filter, an length of plug wire, a spare spark plug
boot (on the 450 I found out
More than likely more trouble than you're willing to go through to get
it done. I've heard of some machines still having the right holes for
a kick start mechanism, they only thing that needs doing is to get a
new side cover and install the guts for one. However the 550 is just
a smaller version
Very nice, that is almost exactly what I just did with mine. I picked
up my '82 450 in December and worked on it til Feburary when it was
fixed and the roads were clear enough for test rides. I've now got
about 3000 miles on it with many many modifications and tweeks and
plans for much more.
Joey, I've got a parts bike '79 400 automatic in my back yard that
came with my 450 and it does indeed have a kick starter. I had always
wondered if it was possible to swap them over. I remember taking a
look a few months ago and deciding the cases were different but I'm
not sure. I'll look
So instead you use in infrared thermometer. The only catch is they
don't work well on shiny surfaces, i.e. chromed exhaust pipes. Black
fins or rusty exhaust manifolds work great.
On Sun, Jun 13, 2010 at 1:49 PM, Javier Garcia jajgar...@gmail.com wrote:
Technically, yes, but you would need a
Bike Bandit lists a new one for $270
http://www.bikebandit.com/houseofmotorcycles/1982-honda-motorcycle-cb750sc-nighthawk-750/o/m2008
(clutch cover)
Otherwise I'd just keep a eye on Craiglist for people parting out
bikes.
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Yeese that is quite a bit of variance but hey, it's only a spark
system. Not exactly precision electronics unless you get into the CDI
module. Glad to hear it's fixed and was something simple.
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Aside from the obvious choice of a rejetting it there are other 2
options both of which I use on my bike. The washer under the carb
needle is a common mod that will richen the mixture from 1\4 throttle
on up. I run this and while I believe it will somewhat shorten the
life of the needle and
Whoops, forgot the link for the washer mod.
http://www.nighthawk750.com/mods/carbneedlemod.html
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Please be careful, remember this is a gas tank and is full of rather
explosive fumes. The only safe way weld or do anything hot on a gas
tank is to clean it thoroughly and then fill the tank up with argon or
Co2. The inert gas is then left on at a trickle so the tank is
slightly over room
I got out and sit on mine during down time. I just wish I lived
farther from work, only a 10 minute ride!
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The three things the engine needs to run are spark, fuel in the
correct quantities, and compression. Check spark on all the cylinders
by taking a spare plug and leaning it against the block and running
the motor at different rpms to see what sort of spark you're getting.
You could also do this
Cruising rpms for me are between 4000-5500 higher than 40mph. Between
3000-4000 lower than that but I'm rarely doing less than 40 when not
in traffic.
Guess there is a little more of me than you Joey. My 6th gear feels
like it's lugging if I'm anywhere below 60. It is barley able to
accelerate
Two distinct possibilities. One, safety interlock is busted somewhere
or two the clutch isn't letting go.
Two is real easy to check. Put the bike on center stand, I prefer to
sit on it while doing this incase it decides to try and run away on
me. Fire it up and pull the clutch in. Drop it
These things aren't torque monsters. Take the specs for a 700 for
example; 80hp but only 45lb-ft of torque. They were designed as
smooth, high reving, high horsepower engines not 105 cu-in, 5000rpm
Harley engines. They were also designed as carbureted street bikes in
a time with increasingly
Wh my 450 is getting about 47-50 city. I should be at like 70 :D
Keeping it fed isn't the problem I just wish I could go more than 100
miles without a fill up.
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Hummm I've noticed that every once in a while on my 82 CB450 one of
plates won't unlock and will turn the rear wheel even with the clutch
all the way in. I can stop it with the rear brakes though.
It might be time to replace the plates. I would double check you're
free play before you commit to
Exactly, also throw a sheet of cardboard under it and let it sit over
night and see how big the leak is. Couldn't hurt to replace that
oring too. The get squished out of shape after years of being under
compression and thermal cycling.
On Jun 1, 1:05 pm, Graham Rogers graha...@ptd.net wrote:
What oil are you running in it and how long ago was it changed? Also
do you mean the clutch wouldn't grab or it wouldn't unlock?
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Aye it is a lovely day for a ride. Just got back from screaming down
some country roads with my buddy.
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From your description it definitely sounds like you have the Cali
Version, called the CB450SCL. Unfortunately not too many people have
those. However I just figured out all the vacuum lines on my buddies
RX-7 using a Hanes manual. If I survived that a bike carb should be
easy : ) I oughta be
Yep, sometime I wonder if those guys realize just how close they're
coming to death.
On the way back from a family vacation a group of them went by us
while we were stuck behind a rig in the right lane. We move over
after they pass and start to over take the rig when a straggler blasts
up from
Kyle is right if it's the clutch switch it wouldn't even be trying to
crank. Does it actually spin the motor? Or do you just hear the
starter solenoid clicking? When you've got a minute set the battery
on a trickle charger until you can play with it again, can't hurt.
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Meh, just bump start it and go ride :D
I hear your pain on waiting for stuff to arrive. Felt like it took
forever for my needles to arrive, when I checked it only took 6
days.
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David,
I had that hesitation is different from what we were talking about.
What to me happened just recently was I had to rev the bike and had to
slip the clutch for a long time before I could lock it up and take off
without stalling. The hesitation you're describing is because these
carbs are
Whoops yeah it was a No 4 washer. No idea where I got 1\4 from. I
also just pull mine apart and played with it for a while since I had
it out. Near as I can tell there is no addition drag there from
having the needle rigid. I also found out that the No 4 washer
actually catches on the lower
I'm actually fighting the same thing on my '82 450 right now. A few
weeks ago I go to pull out of my street into traffic and without any
prior warning the bike has no bottom end power. It still ran but felt
like I was running on one cylinder til it got up to about 4000 and
then suddenly
That doesn't sound like the battery, though the correct battery for
that bike appears to be a 12A-A.
http://www.batterymart.com/p-yb12a-a-dry-charged-battery.html
Fraid someone else will have to give you trouble shooting advice. I
haven't had to touch the charging system on my bike yet so I'd
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