T.R | Title | User | Personal Name | Date | Lines |
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490.1 | | CSC32::FRSBEE::BOHANEK | | Wed May 14 1997 08:36 | 10 |
| Bart,
Try spraying carb cleaner directly into the carbs.
Check your plugs for fouling ?
Are you choking it correctly, this is your first cold spring with it
correct.
Brian
|
490.2 | ref. 490.0 An oz. of prevention = 1kg. of cure. | CSC32::BRAT::J_GALLAGHER | | Wed May 14 1997 10:54 | 106 |
| ALL late model Hondas with higher than 9.5:1 compression MUST have
their carbs drained/run dry BEFORE putting the machine away for EVEN
a WEEK!
Four valve heads are a marvel of efficiency when everything's
functioning well...down to the fuel/air mixture molecules.
Stale low grade fuel and high compression are an ornery combination.
Your carb jets and likely float valves have accumulated evaporated fuel
varnish and likely either starving or flooding your engine until things
loosen up via fuel flow, engine heat, vibration etc...definitely NOT
the way Honda intended your bike to behave.
It sounds like you left fuel in the carbs and perhaps a less than 1/2
full tank. Draining them now isn't much help, the damage is done...
Sidebar science lesson: Fuel evaporates and gets contaminated ALL BY
ITSELF when exposed to atmosphere... the volatility of the fuel vapors
expands and contracts within the air space in both float bowls and the
tank which draws in air and humidity via their respective vents. The
air evaporates the fuel and the moisture corrodes the tank and carb parts.
Eventually, the fuel is rendered down to an inert goo which won't flow
and won't burn in the engine...
Voila! Sheeza no start and sheeza no run good no more.
Once it is that bad, the entire fuel system has to be removed, taken
apart and cleaned.
In your case, I think it's curable by running the bike clean. I'd use
an equal parts mixture of equal parts of Acetone, Isopropyl-alcohol
and prep-solv (acryl-solv), or go out and get the `one-shot' variety of
fuel inj. cleaner, (in the BLACK bottles). Generic (cheapest) brands
of this stuff is O.K., it's all the same crap. Put in 1/4-1/3 bottle
just before filling the tank and ride.
NOTE: Doubling or quadrupling the recommended dosage isn't going to
work any better and will likely make the bike run pretty crappy.
Your fuel tank is MAYBE 5 gallons... one bottle of the one-shot
stuff is intended to treat approx. 16-20 gallons of fuel...
Can you say, "simple division" boys and girls?
Do this for 2-3 tanks and your woes should be over unless you fail to
go through the put-away and re-start rituals below which will only
compound the grief and make you grumpy.
Most Japanese built bikes since 1980 and above 500cc with gravity feed
fuel systems are equipped with automatic fuel tank shutoff valves in
addition to the manual petcock, (all part of the same assembly at the
bottom of the tank), so you can't even accidentally forget to shut off
the fuel. As soon as the engine stops, the float bowls are isolated
from the tank. Bikes with electric fuel pumps ('Wings & fuelies), do
the same thing...no ignition = no fuel pump = no fuel.
This is a SAFETY feature...fuel could possibly continuously boil out of
the carb overflows for a minute or two if the bike's parked hot and the
fuel is left on. A hot bike awash with fuel and fuel vapors is just a
fireball waiting to happen.
Back to how auto shutoff valves work...
As soon as the engine is cranked, vacuum activates the auto-shutoff
valve and fuel flows again to the carb float bowls. If you've
drained the carbs, don't expect instantaneous starting. It takes some
time to REFILL the bowls sufficiently to feed adequate fuel to a cold,
choked engine.
What I have done successfully, (for the last 30 years or so), is store
bikes with as close to a full tank as possible (ride straight home
after a fill), shut off the fuel, (manual only), and drain the
carbs into a pan or coffee tin, (just so I don't flood the floor with
gas an vapors). I'll do this even when I'm not sure when I'll ride
again.
On auto shut-off systems I also put a tiny "Tee" in the vacuum line
connected to a small piece of tubing which I place at an accessible
fixed spot under a side cover and cap/plug it with a brightly colored
golf tee so I can easily locate it.
When I take the bikes out of storage I locate the tube, unplug it and
draw a light pulsating vacuum for about 30 sec. to refill the carb float bowls.
Creating a vacuum by mouth is PLENTY strong enough to activate the
shutoff valve. Unless the auto shutoff valve diaphram is defective,
there's NO danger of an accidental mouthful of fuel.
Anyway, the above method plus the "Tee Trick" ensures INSTANT startups
even after not running for over a year...WITHOUT the use of ANY fuel
stabilizers. Fuel stabilizers are only Isopropyl alcohol which
you can get as premium types of gasline anti-freeze or DryGas.
NOTE: Be sure to check the label...CHEAP dry-gas products contain Methanol
which is actually harmful to your engine and fuel system and will only mix
with water condensation molecules but not fuel. Isopropyl alcohol,
(Isopropanol), will mix with both fuel AND water and burn off easily
with no adverse effects to fuel system.
You can always find Iso fuel dryers at tractor/farm equipment vendors for
about $1 for an 8oz. bottle which will treat 4 motorcycles or your bike
and every darned small engine device you have around the house.
Farmers only buy stuf that doesn't work ONCE.
So, that's it... a little care goes a looonng way. There's no
need for `snake oil' to `cure' preventable problems. `Snake Oil'
should be on a one-tank-per-season preventive basis only.
Good Luck
Also see notes on bike storage.
|
490.3 | Told ya so! | CSC32::PCBUOA::WHITEC | Parrot_Trooper | Wed May 14 1997 13:09 | 8 |
|
Bart,
Get a harley.
chet ;^) ;^)
|
490.4 | more choke | CSC32::T_ABDELLA | Running wild through the mountains | Wed May 14 1997 17:02 | 29 |
|
If the bike runs ok once it is warm I doubt its dirty carbs. Most
new bikes run lean do to EPA. I would agree with the first commet
needs more choke in the cold weather.
I have five bikes so in the winter one or two could sit for awhile
and they always start up and run once gas gets into the carbs.
If the bike sits for a week or so then the carbs will be empty
since the gas evaporated out of them. If the bike has a prime then
I set it there for a couple minutes so the gas will flow into
the carbs before I try to start the bike. If It does not have
a prime then I put the choke on full and crank the bike. Once it starts
I don't touch the throtle for a couple seconds other wise it will
stall. This give the bike a chance to warm up and for the carbs to
fill. This is a ritual I go through several times in the winter but
not in the warmer months.
I've noticed that if a bike sits for a couple weeks the gas in the carbs
has evaporated out. So as far as the carbs are concerned it shouldn't
matter if the bike sat a couple weeks or 6 months once the gas has
evaperated out the vacuum shut off should keep anymore gas from flowing
into the carbs.
If a bike has set a long time the old gas does make it run bad until
it is all burned out.
My thoughts,
Tony
|
490.5 | Harley + Stale Gas = Heart Attack! | CSC32::BRAT::J_GALLAGHER | | Thu May 15 1997 14:28 | 8 |
| ref. 490.3
Chet,
Whattya mean? A Harley with stale gas will put you in your grave
trying to bump it back to life! ;^j
J-
|
490.6 | Try using Prime if you have it | CSC32::FOUNDR::DODIER | Double Income, Clan'o Kids | Thu May 15 1997 15:07 | 23 |
| re:0
As was mentioned in the note .4, if the petcock valve has a
"Prime" position, try using that. This by-passes the vacuum activated
auto-shutoff John mentioned and allows fuel to flow without the vacuum.
My guess is that the bike probably sits longer with the weather we
have this time of year (I know mine does) and the gas is evaporating
from the carbs enough where it takes a little time to refill the bowls.
If everything is tight, you can leave the petcock in the "Prime"
position, but it's not recommended as you never know when a float will
stick. I usually turn mine to prime in the morning, have a cup of
caffeine, then go start my bike.
I have an '82 Suzuki 750 with 4-valves per cylinder and have
never drained the carbs for storage. I top off the tank at the end of
the season and run carb cleaner the 1st tank or two after storage. Been
doing that for the last 9 seasons with no problems.
Ray
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490.7 | The Incinerator! | CSC32::CSLALL::MCLEMENT | WITHATOUNGELIKEACOWSHECANMAKEYOUGOWOW | Thu May 15 1997 15:11 | 6 |
|
I run Junk Yard gas in my Harley, starts right up, and sounds mean
as a Junk Yard Dawg!!!!!
Dawg~~~~~
|
490.8 | Dubbada Dubada Dubada... | CSC32::BRAT::J_GALLAGHER | | Fri May 16 1997 07:11 | 11 |
| re .7
Yo Dawg,
You ain't got nearly 11:1 compression like most of today's ricers either.
Your compression is more like a 2 cylinder John Deere.
Come to think of it...the sound is kinda similar too... crude but
powerful ;^j
J-
|
490.9 | The Green Meanie | CSC32::CSLALL::MCLEMENT | WITHATOUNGELIKEACOWSHECANMAKEYOUGOWOW | Fri May 16 1997 08:38 | 11 |
|
re:8
Hey, cool idea...
New paint job, John Deere Green with yellow flames..
And 18" Antlers for handlebars.....
Hey i'm onto something...
Dawg~~~~
|
490.10 | Yeah! A `Game Hawg' | CSC32::BRAT::J_GALLAGHER | | Fri May 16 1997 08:59 | 10 |
| re .9
Dawg,
Yer idea sounds kinda `down home', outdoorsey, and flash all at once,
don't it? 'Cept I'd make it `pearl' colors, chrome the antlers,
and use the cape for a fork-mount tool pouch with matching tank-deco strip.
;^P
J-
|
490.11 | Cool Picture | CSC32::CSLALL::MCLEMENT | WITHATOUNGELIKEACOWSHECANMAKEYOUGOWOW | Fri May 16 1997 09:47 | 7 |
|
Hey,
Theres a picture in this months Easyrider with this dude on an
Indian with a rifle holster, and a deer tied down on the rear
fender. And it's in Colorado Springs.....
Dawg~~~~~
|
490.12 | Picture him riding in the WOODS with it! | CSC32::BRAT::J_GALLAGHER | | Mon May 19 1997 10:14 | 9 |
| Yeah, neat-o!
I'll bet anything he didn't go INTO the woods on the bike to pull the
deer out, though... ugh that'd be a pain in the tookis on ANY 2
wheeler, but especially a big 'ol hawg with easily bottomed suspension
and super heavy weight.
J-
|
490.13 | Here's what I do... | CSC32::ASDG::JOHNSON | wraflc::games | Thu May 22 1997 12:19 | 19 |
| Getting back to the base note.....
A couple of years ago I purchased a used bike which seemed to run good.
A couple of weeks later I had to have the bike picked up and hauled
back to the shop.....carbs were fouled up with varnish type residue.
Turned out that the bike had been in storage for 2 years and the carbs
were never drained. So the following year after purchasing a new Yamaha
Virago I put stabilizer in the gas tank and drained the carbs. Bike
started ok next spring but ran like sh*t until I got rid of the
stabilizer in the tank.
Now all I do is make sure I have a full tank of gas before storing.
Dealer said that since the bike will only be stored for 4 months or so
I shouldn't have a problem. I've gone 3 years this way on 2 different
bikes (Vulcan now) with NO problems.
Your mileage may vary.
Jerry
|
490.14 | Stabil isn't so good? | CSC32::CADSYS::RUBIN | Diana, HLO2-2/G13, 225-4534 | Thu May 22 1997 14:13 | 9 |
| That's interesting. I put Stabil in the tank (drained the carbs)
and stored my bike for the winter (Virago 1100). It started
right up in the Spring, but did it run lousy. I thought I might need the
carburetors adjusted or something. Now, I'm on my third tank of gas since
I took the bike out of "storage" and it's finally running like it should.
What does that Stabil stuff do to cause such poor performance anyway? I might
try *not* using it next year as .13 suggested.
Diana
|
490.15 | Sta-Bil ain't the answer... | CSC32::BRAT::J_GALLAGHER | | Thu May 22 1997 14:32 | 26 |
|
ref. .14
The MAGIC IS:
SHUT OFF THE FUEL SUPPLY and either RUN the machine dry or drain the
carbeurators. Running it dry is actually better because it also
empties all the small fuel and vacuum circuits in the carbs of
liquid fuel which can also turn to varnish and make it run for sh_t.
Most modern Jap bikes prescribe regular low octane fuel yet have high
compression which will run lousy on even slightly stale regular fuel.
When putting it away, fill up with premium which by Spring will
probably run O.K., and add a dash (1/3 bottle) of carb/injection
cleaner before filling. This will keep the varnish from forming and
clean any varnish up when you run it in Spring.
Please read much earlier notes in this file... Sta-bil is only alcohol.
John
As an extra measure, you can
gas... regular gas is for emmissions purposes.
When you store it, store with premium fuel and a bit (1/3 bottle) of
carb/injector
|
490.16 | | CSC32::WRKSYS::LASKY | | Fri May 23 1997 07:25 | 14 |
| Since I started this mess I thought I would give an update. I took the
advice of the notes file and added a bottle of carb cleaner to my tank
of gas and change the plugs (the old plugs looked fine but I changed
them for GOOD LUCK!!). The bike is starting better but not great.
When this tank is empty (probably today) I plan on doing the same thing
again with the carb cleaner in the tank. I figure it it should mint by
then.
Thanks and be careful out there,
Bart
PS: some teenage kid in a hurry to get to school almost took me out the
other day.
|
490.17 | What I do. | CSC32::CRUISE::CLEMENT | Smells like Nirvana | Fri May 23 1997 08:19 | 7 |
| For all of my past motorcycles (including a Virago) and all of my current
seasonal type engines; I start the engine, shut off the fuel supply,
and wait for it to run out of gas. Then I drain the gas tank.
I have never had any problems when its time to get them going again.
Mark
|
490.18 | No petcock on Virago | CSC32::CADSYS::RUBIN | Diana, HLO2-2/G13, 225-4534 | Fri May 23 1997 09:37 | 2 |
| Unfortunately, I can't shut off my fuel supply (no petcock on Virago)
and run it dry. Will try the carb cleaner in tank the end of this season.
|
490.19 | | CSC32::GONE::PIERSON | | Fri May 23 1997 10:08 | 7 |
| fwiw:
When i stored the bike over the winter, i used STABIL.
Alwasy started in spring & I do not recall problems with 'running
well'.
regards
dwp
|
490.20 | | CSC32::PCBUOA::KALLIOA | | Fri May 23 1997 10:55 | 5 |
|
I have had the same experience as dwp with STABIL. I have had no
adverse affects IMO due to it.
Alpo
|
490.21 | Simply STABILize your winter storage | 3007::INGRAHAM | You are HERE:: | Fri May 23 1997 11:24 | 13 |
| Add one more to the "I [heart sign] STABIL" club. I fill up my tanks,
add STABIL, run the bikes long enough to ensure that the gas in the
carbs is stabilized, plug in the Battery Tender (tm) and my winter
storage is complete. Come springtime I have no problems other than
the FLH likes a quick squirt of starting fluid on its first start.
And I have to remember to turn its gas back on (blush).
The only thing I can think of which would be better would be to live in
a climate where I could ride year-round and not have to store the bikes
for the winter.
Cheers!
|
490.22 | | CSC32::ASABET::SOTTILE | Get on Your Bikes and Ride | Fri May 23 1997 12:40 | 10 |
| re -16
never mentioned how it used to act before it acted up.
Also how deos it run once warmed up? If its ok once up to temp
it might be something simple like the choke cable somehow disconnected.
Or the choke is not choking...
I'd be inclined to say its not varnish if sitting for less than 6-8
months.
steve
|
490.23 | Stabil not just alcohol | CSC32::PATE::SOLON | | Fri May 30 1997 11:51 | 2 |
| re .15, the Stabil I have is labeled as containing petroleum
distillates. It sure doesn't smell like alcohol!
|
490.24 | What's that SMELL?!! | CSC32::BRAT::J_GALLAGHER | | Tue Jun 03 1997 14:33 | 30 |
| re.23
FYI, some alcohols ARE petroleum distillates.
What particular alcohol smell were you looking for when you whiffed the
can of Sta-Bil?
Vodka?
Beer?
Gin?
Anti-Freeze?
Rubbing Alcohol?
Paint Thinner?
Ether?
Ethanol?
Methanol?
Glycol?
Etc.?
They're ALL alcohols; they're from different distillations, and
for the most part, don't smell alike.
Anyway, there is SOME form of alcohol in the Sta-Bil to absorb
condensation into solution because Gasoline and water just don't mix
and water won't burn...period.
Regards,
John
John
|