bulk octane booster

Can anyone point me to a place that sells octane booster in bulk (4L or more).
I'm not having any luck running by 250 on premium unleaded. Dosn't matter what
brand, the bike is bastard to start when cold and very sluggish at low rpm.
Regular unleaded is fine but the motor pings a lot even under light load.

I'm after something that I can just add to the tank when I fill it up. I don't
want to use anything dodgy like 2 stroke oil or paint thinner.

thanks.

 

Hmm, I'd be looking at a good tuneup instead of worrying about adding octane booster
by the sound of that.

Doug.

 

So, your bike doesn't like cold starts, it doesn't pick up off the bottom
end, it pings on regular unleaded, and you've concluded that the best way to
address those issues is to run the bike on a permanent diet of octane
booster...

Excuse me while I share that with everyone along the corridor...

Now (deep breath)...

....you ride a Bandit 250. Why would you think it should have any bottom end
to begin with?

It's hard to start and it pings on 91-octane fuel. Have you checked the
sparkplugs? Have you had the carbs balanced? Have you looked at the air
filter? Is it one of the ones with the variable valve timing? If so, are you
sure that mechanism hasn't had the dick?

How on earth did you come up with that octane booster idea?

 

Because I tried a bottle (104+) in regular fuel and it seemed to fix the
problem. Regular fuel in the tank is fine except for the pinging. I've already
replaced the plugs and the air filter last service. I had a carby service done
before I picked up the bike so the balancing has alread been done. I don't have
a vacuum guage to check it so I'm going to have to trust the mechanic.

The only thing I havn't done is take the head off and check the combustion
chambers and exhause ports for carbon build up.

It's only a **** to start with premium unleaded fuel.

 

So, you thought you might as well do that all the time?

If a person needs regular insulin injections to keep from collapsing in the
street, that person isn't normal, they're diabetic.

If a bike won't run well without octane booster in the tank, that bike has
something wrong with it. Chances are that, unlike diabetes, whatever's wrong
with the bike can be fixed.

Oh well, pinging_is_one of those things you can ride around, after all...

Never trust a mechanic.

Did you change the plugs and the air filter yourself, or did you believe the
mechanic when he told you he'd done it and charged you for it?

Nope. You also haven't checked your valve clearances, haven't opened the
carbs up to ensure they're not caked shut with deposits (most bike shops
have ultrasonic cleaners they stick disassembled carbs into to get rid of
that good and proper), you haven't checked your fuel filter...

 

OK, now where did you get it serviced? Because as I and everyone else has said, it is
sounding like it is in dire need of a real service rather than a "throw new oil in it
and get it out" version.

Doug.

 

Is it one of the ones with the variable valve timing?

Wow. For real? Like, real VVT, or Honda's VFR-type joke? Any other bikes
that are secretly running this?

Jules

 

Nah. I'm just throwing that one up in the air to see how many Peg pilots
with Stayin' Alive hairstyles fall for it...

It's on a four-cylinder 250... what do you reckon?

The Jap-market Bandit 400, apparently... they're probably essentially the
same motor; based on the GSX-R400 one... wonder where the Across fits in?

On that note, saw a Sumoto ad in a recent AMT. They're started bringing in
GSX-R250's from Japan. Fresh paint aping the current bikes and a $7000
pricetag to you, Sir, with the sales blurb, "Looks just like the big
1000!"... this about a bike carrying the styling cues of the 1989-model
GSX-R750K...

 

Nah. I'm just throwing that one up in the air to see how many Peg pilots

For the record, I've had a haircut.

I'll take that as a no?

 

I'll take that as a no?[/QUOTE]

All of 15 seconds with google finds:

http://www.importmc.com.au/bikes/gj77a/
"A variation of the GJ77A has variable exhaust valve timing "

http://www.hyp4r.com/mct/across/across.htm
"The latest Suzuki Bandit 250 GSF250 has the same engine
however it has Variable Valve timing which gives it more power
above 10,000rpm"

so that'd be a "yes" some of the 250 badits have variable valve
timing (possibly limited to exhaust valves)

big

 

Yes I read what Google had to show me. Didn't answer my question about its operation - ie "real" VVT or Honda VFR style selective
(but binary) actuation.

--
Sick of spam?
http://www.killmail.net/
-- Instant disposable email

All of 15 seconds with google finds:

http://www.importmc.com.au/bikes/gj77a/
"A variation of the GJ77A has variable exhaust valve timing "

http://www.hyp4r.com/mct/across/across.htm
"The latest Suzuki Bandit 250 GSF250 has the same engine
however it has Variable Valve timing which gives it more power
above 10,000rpm"

so that'd be a "yes" some of the 250 badits have variable valve
timing (possibly limited to exhaust valves)

big
[/QUOTE]

 

All of 15 seconds with google finds:

http://www.importmc.com.au/bikes/gj77a/
"A variation of the GJ77A has variable exhaust valve timing "

http://www.hyp4r.com/mct/across/across.htm
"The latest Suzuki Bandit 250 GSF250 has the same engine
however it has Variable Valve timing which gives it more power
above 10,000rpm"

so that'd be a "yes" some of the 250 badits have variable valve
timing (possibly limited to exhaust valves)[/QUOTE]

And they make a very interesting noise when it cuts in.

JL

 

Plugs and air filter was changed by myself. I plan to take the carbies off and
clean them after exams. I don't trust the mechanic to have done more than
ballance them. They don't have the gear at the shop to check the mixture, they
have to send them off to some other place that has a mixture analyser. All they
did in the carby service was check for leaks, and ballance. They don't even
take the carbies off to clean and properly inspect them. To do this, it was
gonna cost around $300.

It's not a variable valve model. The valve clearances are up for adjustment at
the next service, so they may be a bit big. I'll have to wait and see. I'll
have to take the rocker cover off and see if the clearance adjustment is the
unbolt at screw in type or the shim type.

The dosn't have a fuel filter. There was supposed to be a strainer in the tank,
but it's not there. There may be a felt filter in the fuel tap. I've got an
inline Z14 filter. I'll have to check if enough fuel flows through it. I
havn't had the engine conk out so I havn't bothered to check.

 

Call me John, then. Perhaps you got the movie confused with Braveheart?

Eh?

Tin hat time IK, you are too close to the tower!

Hammo

 

I run a YZFR6 and last time I got it serviced the mechanic told me to
stop running premium unleaded. I asked him how he knew I had been
running premium as I hadn't told him, and he said he could tell by the
condition of my spark plugs.

The majority of the riding for the R6 at that time was for commuting,
and I wasn't getting the revs up for long enough or high enough to be
burn the premium fuel. Hence it was fowling my system up and making
the bike act like a pig. Maybe you need to put standard unleaded in
and go for a long high revving ride to clean out the system?

Another problem I had was when I had my Yamaha FZR250R (one of the 2nd
hand Jap imports). It ran better in winter, but similar problems to
yours in summer. After a lot of searching around, I finally found a
mechanic who also raced and he could tell me the problem straight
away. The jetting. The carbs needed to be rejetted for the warmer
conditions. Also needed the carbs rebalanced etc along with the
rejetting, but it was worth it.

Hope maybe some of this helps

Cheers,
Greg.

 

Wouldnt it be acting like a chicken?

 

So, when the bike eventually melts its pistons, can he call you to come pick
him up from the side of whichever road he winds up stuck by the side of?

Miss the bit where he explains that his problem is pinging under regular
unleaded and wooly bottom-end running on premium, did you?

PS: Start taking your R6 to a mechanic who isn't stuck in the 80's.

 

What, so that one I test rode for Surreal _wasn't_ about to shit
itself??? "Nah mate, they _all_ sound like that!"



big

 

<grin> Yeah that was my reaction - I pulled over for fear it was about to shit
itself. Rev, horrid grinding noise at 9K* - WTF ! Oh what the hell it's not my
bike, rev it again, hmm, well it does it at the same revs each time so I guess
it's supposed to......off for a fang around the block.

Fun little bike.

JL
* Well I remember it being 9K but your post above implies 10K. Whichever.

 

~
You mean "Chicken".