Backfire(ing) on purpose!

Back onto the original topic Go riding along, about 5k or 6k, then let go of tyhe throttle so the engine starts its usual braking business. Flick the kill switch to off then back to on after a second or two (or five ) Cue the bang and you'll carry on your way

I've never done it with the clutch in and have never done it with the throttle open either, just under engine braking, which I am led to believe is the easiest way to do it

Or you could join the 'REVZ' reading boy racers and buy a kit, which works on both FI and Carbs, which basically consists of a small spark plug put into a drilled hole in the end of yer exhaust and wired to a button (which also invokes the kill switch). This also then produces big FLAMES when using full throttle Fast N Furious Style. Can be bought for both bikes and cars for about a hundred notes.

Dont think ill be sad enough to bother me thinks (maybe when i was 18 i would have )

Originally Posted by sd1cko

Or you could join the 'REVZ' reading boy racers and buy a kit, which works on both FI and Carbs, which basically consists of a small spark plug put into a drilled hole in the end of yer exhaust and wired to a button (which also invokes the kill switch). This also then produces big FLAMES when using full throttle Fast N Furious Style. Can be bought for both bikes and cars for about a hundred notes.

Dont think ill be sad enough to bother me thinks (maybe when i was 18 i would have )

my mate has one - got nicked for it too.
he paid 10 quid for the kit.

my other mate has made one - cost about 2 quid in parts.


i wouldnt like to be using one if it all goes terribly wrong and blows me up.

the ingredients for a successful backfire are about 7000 revs a small boy walking down the road with his grandad and hit the kill switch :P i didnt pull the clutch in, i didnt do anything except hit the switch momentarily

The look on his face was amazing I know, I deserve an ASBO, its just I could see in that little lads face, he was going to grow up to be a hooligan too

It is not big and its not clever!
























Well it is actually :P

I have destroyed a can doing this (a very long timeago).

The principle is pumping unburnt petrol through into the exaust system which then ignites when you turn the engine back on. When you start exploding petrol/air mixture in a space not designed for it, then problems can arise.

but when your grandad use to run a Morris Oxford or Austin Cambridge, he had to decoke it every 6000 miles :P

The SV is already fitted with an automatic decoke device






OK, I know.

Its probably a stupid thing to do, but so is riding a motorcycle at 120 mph

[Biker Biggles]

Small boy with his grandad under a railway bridge is best

heeheeee you all make me chuckle !!! happened to me in derbs, nearly kacked meself ! been wantin to do it for ages, all this good advice might give it a go !!

i suppose people who use kill switches to produce a bang wonder why bikers are often seen in a bad light by non biking people..does make you wonder!.

IMHO its a pretty chav thing to do..why?????????

If you have a carbed bike it can do alsorts of horrid things to your bike, even as far as setting your can alight and blowing the carbs off, to damaging valves and spiking the ignition..

TBH you will have more street cred if you learn to ride your bike quicker and better rather than acting a fool...

for me it gets put into the same catagory as those that have clio's with neon lights

Originally Posted by SV650Racer

for me it gets put into the same catagory as those that have clio's with neon lights

Ditto