Author Topic: exhaust flames  (Read 18034 times)

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afrench750c

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exhaust flames
« on: March 22, 2007, 10:56:42 PM »
Hello all,

OK I might be a little crazy...wait...I AM a LITTLE CRAZY, but I wanna know about hookin up a flame system on the exaust.

Now from what i've found so far there some systems out there that delay yer ignition and pump raw fuel through yer cylinder heads and into the exaust where its ignited.

Theres no way in hell im pumpin RAW fuel through my cyliders!! It can realy screw #$%* up after a while.

Does anybody know of or have or seen a good system that wont ruin my bike??

"Frenchy"

Offline kslrr

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Re: exhaust flames
« Reply #1 on: March 22, 2007, 11:22:07 PM »
What I've seen done on cars is to run a small fuel line to the tail pipe, maybe 6" from the end and there is also a sparkplug mounted there.  Pushing a button opens a solinoid valve and triggers an ignition coil for the spark.  Funning thing is that I was thinking of doing the same thing earlier this morning ::)
Now  1972 CB350FX (experimental v2.0)
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Then 1972 CL175
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Offline jevfro

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Re: exhaust flames
« Reply #2 on: March 23, 2007, 12:17:47 AM »
Or if you wanna really get crazy just run it as rich as it will run...  Rev it back off and wait, you might just get a big flaming back fire!  I've got a truck that can make flaming back fires on command but it needs a carb rebuild badly!!! (It tends to blow up exhausts too!)

afrench750c

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Re: exhaust flames
« Reply #3 on: March 23, 2007, 12:27:38 AM »
What I've seen done on cars is to run a small fuel line to the tail pipe, maybe 6" from the end and there is also a sparkplug mounted there.  Pushing a button opens a solinoid valve and triggers an ignition coil for the spark.  Funning thing is that I was thinking of doing the same thing earlier this morning ::)

Yeah I seen a coupla kits online but I only seen the "ignition interupt" ones, not sure about them havin a "seperate" fuel  line or not, they just dont make it clear enough.

okie

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Re: exhaust flames
« Reply #4 on: March 23, 2007, 05:18:48 AM »
Here are some answers for you.

http://www.eatmyflames.com/


This one even claims it is for motorcycles.

http://www.hotlicksexhaust.com/

Car exhaust flame throwers work by interrupting the spark to the engine. This dumps raw fuel into the exhaust system. The fuel is ignited by a coil and spark plug placed right before the exhaust tip. Doing this will shorten the life of your engine. The raw fuel strips the oil off the cylinder walls and contaminates the oil causing more wear and tear. Also, this mod can't be used on a fuel injected car. It would foul the O2 sensors and catalytic converter.

Offline nickjtc

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Re: exhaust flames
« Reply #5 on: March 23, 2007, 06:26:46 AM »
Erm, why would you want to do something to the bike that will draw the attention of the public, or worse the federales, and which you cannot see anyway?
Nick J. Member #3247

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Offline kslrr

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Re: exhaust flames
« Reply #6 on: March 23, 2007, 06:44:57 AM »
Now that I see more, not worth the possible damage to the engine.
Now  1972 CB350FX (experimental v2.0)
        1981 CB650c Custom with '79 engine (wifes)
        1981 CB650 engine
        2004 HD XL883C Custom
        1977 Yamaha XS750D (in progress)
Then 1972 CL175
        1964 Yamaha YGS-1T
No ride is a Bad ride

Offline DJ_AX

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Re: exhaust flames
« Reply #7 on: March 23, 2007, 07:56:16 AM »
I've been considering this or something similar... the purpose being to get tailgaiters to back off! At least one day a week if not two... I seem to get some fool trying to give me a 55mph push in a 40mph zone. I think most of these people are too preoccupied with god-knows-what on their minds and cell phones stuck to their heads to even realizing they are doing it. (or they are just plain #$%*s) A big puff of smoke would probably do the trick for me... but flames would be really cool...
~ Vincent . . . '75 CB750 K5 . . . '97 BMW r1100rt . . . had; '75 CB550 K1 (sold) . . .  '73 CB350G (gifted) HELL YEAH!
Disclaimer: I could be wrong. :)

Offline kghost

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Re: exhaust flames
« Reply #8 on: March 23, 2007, 08:07:01 AM »
This is the most useless post since "am I attractive"

 ::) ::) ::) ::) ::) ::) ::) ::) ::) ::) ::) ::) ::) ::)
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Offline nickjtc

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Re: exhaust flames
« Reply #9 on: March 23, 2007, 08:21:15 AM »
... the purpose being to get tailgaiters to back off!

Why not do what the 'manual' suggests in a case like this and increase your space cushion to the front. That way you will not piss people off and run the risk of getting caught in the radar of the local plod...... As for the 'coolness'; can't comment on that one.
Nick J. Member #3247

2008 Triumph Tiger 1050
1977 Suzuki GS750

"That which does not kill us reminds us to wear proper motorcycle clothing...."

afrench750c

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Re: exhaust flames
« Reply #10 on: March 23, 2007, 10:49:04 AM »
Erm, why would you want to do something to the bike that will draw the attention of the public, or worse the federales, and which you cannot see anyway?


Simple.......Flames are cool.

holysmokes

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Re: exhaust flames
« Reply #11 on: March 23, 2007, 10:54:24 AM »
driving a flame thrower isnt cool, its darn right looney

cyclists have bad enough rep now, without frying people

what happens if the car behind you has a gas leak, you gonna kill children because of a parents ignorance

afrench750c

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Re: exhaust flames
« Reply #12 on: March 23, 2007, 11:04:43 AM »
driving a flame thrower isnt cool, its darn right looney

cyclists have bad enough rep now, without frying people

what happens if the car behind you has a gas leak, you gonna kill children because of a parents ignorance


Are you kidding me right now??  So i think some flames "for show" would be cool.  I never said anything about burnin up some kids with 10 foot flames runnin out the back of my bike while doin 60mph.  You dudes need to lighten up.  Don't go assumin crap, ask about my intention if your not sure, further more I wouldn't have asked for Info. on a forum if I just didn't give a crap about my Bike,Safety,and believe it or not biker rep. in general. 

Next time if you can't answer my question with some knowledge on the subject instead of some wanton, pre-premised rambling.....then please don't answer.

Thank You,
Adam

Andoo

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Re: exhaust flames
« Reply #13 on: March 23, 2007, 11:29:16 AM »
 ??? I realize its cool to shoot flames... but does the reward match the risk?


I think making an electronic or mechanical exhaust cut-out would be cool with less risk. These bikes sound killer un-corked.
« Last Edit: March 23, 2007, 11:31:40 AM by Andoo »

afrench750c

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Re: exhaust flames
« Reply #14 on: March 23, 2007, 11:32:13 AM »
??? I realize its cool to shoot flames... but does the reward match the risk?

Dang good question,  thats what I'm tryin to find out.
Ok,Ok like I said in the beggining "I might be a bit crazy", but I would not do somthing thats gonna endanger myself, others, and especialy my bike.

Adam.

Offline griff6-5-zero

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Re: exhaust flames
« Reply #15 on: March 23, 2007, 11:54:09 AM »
You'll shoot your eye out kidd..... ;D

Go for the flames if you asked me. Hell, get the kit and bring to my garage. I'll get the gas... :o

VitaminCB550

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Re: exhaust flames
« Reply #16 on: May 16, 2007, 12:00:25 AM »
hello all... been away for a while, but now getting the bike back on the road... ;D

my bike runs super rich as is  :-\ soooooooooooo  - if i put a spark plug "bung" on my tailpipe, screwed in a spark plug, and hooked it up to a momentary switch and battery, think it would work?  ??? ??? ???

Offline oldfordguy

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Re: exhaust flames
« Reply #17 on: May 16, 2007, 10:20:41 AM »
If you have a problem with tailgaters, do what I do.  Carry a pocketful of marbles.  At 55-70, a marble over the shoulder stops tailgating right now!

Matt

Offline merc2dogs

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Re: exhaust flames
« Reply #18 on: May 16, 2007, 04:29:41 PM »

 Back in California, I used to keep a tool bag on the bars with a bunch of  nuts, bolts, old spark plugs etc. and I wasn't afraid to grab a handfull.

 I was a bit easier to tick off back then though!

Ken.

Offline ohiocaferacer

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Re: exhaust flames
« Reply #19 on: May 16, 2007, 05:04:01 PM »
Just for information only......the setups I have seen used on old lead sleds involves the use of the small propane tank with lines run to the exhaust tips and using a grill ignitor to lite them.

Offline Pinhead

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Re: exhaust flames
« Reply #20 on: May 16, 2007, 05:41:46 PM »
I've seen people use washer fluid pump to pump transmission fluid into the carbs. Instant smoke screen.
Doug

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Offline edbikerii

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Re: exhaust flames
« Reply #21 on: May 16, 2007, 06:10:59 PM »
While you are cruising along, just turn off the kill switch for a few seconds while in gear and without pulling in the clutch, in order to let the fuel build up in the pipe(s), then turn it back on and BLAMMO!

Be careful that the bike will react strangely both when you turn off the kill switch and when you turn it back on again.

I'm not responsible for any stupidity you might attempt--and this is stupidity.  If you do this and you cause any harm to person or property, you, and you alone, are responsible.

That being said, I've "heard" that this works pretty well to ward off tailgaters.
SOHC4 #289
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Rocking-M

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Re: exhaust flames
« Reply #22 on: May 16, 2007, 06:56:02 PM »
Ed has it, use to know and old log truck driver who drove an old gas truck.
He'd continually back fire every one he met or wanted to scare. Made old ladies drop
their groceries on the street corner, made the local chain gang hit the dirt more
than once while on road side clean up. He'd back fire me every time we met
on the road and he'd run through the saw mill with at least 3 firings a time.
Well I decided to pay him back. Loaded up the 44 cap and ball without the ball.
Was going to shoot at him on the road but figured someone might see us and
call the law, then one day I pulled in the mill right behind him, Ah ha ;D.
Whip out the 44 and walked up to his door and said I'm tired of your damn
backfiring and leveled the gun at the door he fell back in the seat as  I fired,
then popped back up and looked at the outside of his door to see if there
was a bullet hole ;D ;D ;D The log grader then took the gun and went round
and shot his other door, then a fellow took the remaining four rounds
and gave the Mexican board stacking crew a scare. ;D ;D ;D

All true and I'm sure if you don't live round here you'd think it was real dangerous to
fun like this!

Offline edbikerii

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Re: exhaust flames
« Reply #23 on: May 16, 2007, 07:59:15 PM »
I have some fond memories of tearing beer cans to shreds with a black powder .44 out in PA.  That sure was an exhiliarating piece to shoot.

I don't think I'd want to scare people like that, as one of them just might shoot back!   ;D
SOHC4 #289
1977 CB550K - SOLD
1997 YAMAHA XJ600S - SOLD
1986 GL1200I - SOLD
2004 BMW R1150R

Jetting: http://forums.sohc4.net/index.php?topic=20869.msg258435#msg258435
Needles:  http://forums.sohc4.net/index.php?topic=20869.msg253711#msg253711

Offline rustrocket92

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Re: exhaust flames
« Reply #24 on: August 20, 2008, 05:23:38 PM »
I thought i was the only one that wanted flame throwers but I guess not. I have a homemade flamethrower kit and a home made smoke screen also both off them work quite well. I am very new to this forum so I not quite sure how to post links and pictures but here is the videolink.                                                                                               http://s114.photobucket.com/albums/n259/rustrocket92/?action=view&current=MOV00001.flv
1973 cb750k
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1978 cb750k