thought i'd try regular gas

82 750 seca doesn't rev when it's time to push in the choke. other
than that i don't see a problem. is there something i should look for?

 

Dirty carburetors. Go to Wal*Mart or any well-stocked auto parts store
and buy a can of Berryman B12 Choke and Carburetor Cleaner for about
$3.00.

Buy the non-aerosol can so you can measure four or five ounces and
*carefully* pour it into a full tank of gas.

Don't get any on the paint, B12 contains toluene and acetone and MEK
for quickly cleaning gum and varnish out of carburetors

Then go for a slow ride using very little throttle so the engine will
have to suck gasoline through the idle jets and idle passages.

You'll know that the B12 has done its job when the engine idles faster
when you stop. If some previous owner has adjusted the master idle
knob to compensate for engine stalling, the engine may idle at 4000
RPM when it's hot after the B12 does its job.

It helps to know where the master idle knob is before you start out on
this carb cleaning ride.

 

two things.

one ignore krusty his brain is fossilized

two you need an italian tune up. Drain the tank to less than 1/4 tank
full, pour in a can of seafoam (yes the whole thing) top off the tank.
THEN ride the piss out of it. Note you may have to rinse and repeat a
time or two. That depends on how filty the carbs are, usually works on
all but the worst cases. BTDT

 

SNIP

B-12 is for minor issues. When you want the job done NOW and done well
you use seafoam...you know nothing wiki bandit.

 

Don't pay any attention to Butt Sniffer, he's crazy and may be off his
meds.

Seafoam is mostly *oil*, it's for treating *outboard motors* before
storing them for the winter and for getting them to run again after
they've rusted internally if they weren't stored carefully.

Berryman B12 is the way to go when a motorcycle's carbs are dirty.

 

No. Ultrasound cleaning is the way to go.

 

While I have no love for Krusty and his demented ramblings, he does get a
few things right and this is one of them.

Seafoam is really good at..........marketing. The stuff in that can that
they have brainwashed you into paying ~$6 for probably costs them about 75
cents to make. Not that it is bad or totally useless but there are better
things for cleaning carbs and B-12 is one, that is much better and widely
available.

If you used a product that was really good, there would be no need to "rinse
and repeat several times".

 

And I have no use for grown men who get all giggly over British
"humour"
and feel the need to repeat it endlessly.

 

let me clear something up. i turn the choke on and start the motor.
after a while it revs faster so i know to turn the choke off. since i
put in regular unleaded it doesn't rev faster when it is warmed up. i
kind of expected to hear knocking or something but so far so good as
far as i can tell. anyone else use regular?

 

That's odd, because regular is more volatile than premium. Premium
burns cooler than regular.

My liquid-cooled Yamaha FZR1000 is designed to run on regular, but I
used premium for the first few years, thinking I was doing the engine
good.

So far as pinging goes, it has to be overheating to ping. The Yamaha
has a small capacity cooling system, only about 3~4 quarts of coolant,
and the engine temperature is all over the indicator dial on a hot
day.

Pinging can sound like anything from a loose valve to a loud *clank*!
as I shut the engine off when it's very hot, around 220 degrees.

My air-cooled GS1100 pings in heavy traffic after sitting at a stop
light idling on a hot summer day. I use premium in that bike. The oil
temperature on that bike can get up to 290 degrees on a hot day.

My air/oil-cooled GSXR750 uses premium gas. It's tuned to the ragged
edge of
pinging. I can tell that because it burns all the carbon of the top of
the piston directly under the spark plug.

If you suspect pinging from light tinkling noises in the engine while
you're accelerating in traffic after sitting at a stop light, you can
tell that the engine is pinging by removing a spark plug and looking
at the porcelin nose.

If there are little black specks like pepper burned onto the spark
plug, the engine is pinging.

If you see little silver balls of aluminum on the spark plug, you're
melting a hole in the piston. Don't ride until you fix the lean
mixture problem or change to a higher octane gasoline.

 

Oh really? The WHY when B12 wont clean it out Seafoam will? BTDT In a
pinch I'll use Techron over B12. But that's just my experience...it's
free country so far, do as you will.

 

Thank Benz! Then again I'm too old for chickenhawk to be chasing.

 

Believe what you want chickenhawk...I go with what works and I've YET
in many decades have Seafoam fail. B12 otoh has let me down more than
once.

 

That's work! I mean you have to remove the carbs to do that. Any way
the old fossil said it would make the metal dissolve...not that I
believe a chickenhawk.