Popping and flames....

[Engineer]

Those older bikes had much poorer engineering quality, tolerances were no where near as fine as your new WC. So though you thought they had no leaks the evidence suggests oxygen was getting mixed into the hot exhaust gas stream.

It's those weaker tolerances that was part of the reason why bikes like the 1150 wheezed and ran out of power before redlining. Sort of akin to Austin Allegro panel gaps.

Ahhhhh that's the explanation, glad that I am one of the new Comrades

 

[Colin1958]

I personally have drilled a hole in the petrol tank and run a length of rubber hose from that hole to the hole I previously drilled in the collector box.

The bike now sounds like world war two on the overrun, underrun and when parked.

Now, I just need a crane to get it out of that tree. . . :cool

 

[Wizard]

Now, I just need a crane to get it out of that tree. . . :cool

Bloody toilet drivers
Just ride the bloody thing down

 

[Nutty]

My Ducati sounds like a full on artillery assault dropping through the gears coming up to a junction, I can also modulate the throttle and induce pops and bangs if I want to be a hoolie (I do this A LOT).

I am not aware of any leaks but will now drill an 25mm wide hole in the collector as suggested - what could go wrong?

While I get the older brigade would prefer not to be reminded of trench-time at the Somme, I much prefer a noisy exhaust. I'm curious if the fuel choice makes a big difference as well, I think running higher Octane that burns slower (albeit with a higher flash point), means there is more likely to be some fuel that subsequently ignites in the exhaust and hence noise and the odd flame.

My advice, run higher octane fuel for a start and maybe, lay off drilling inch-wide holes all over the exhaust, ymmv.

Are you getting an Akra for the GS?

 

[Count]

Are you getting an Akra for the GS?

Does Dolly Parton sleep on her back?

 

[Myke Rocks]

What a stupid thing to do!

You need to be careful to do it properly. Mark the centre of the bottom of the collector box, and move 10mm to the FRONT OFFSIDE before drilling with 24mm hole cutter. It has to be exact, of the airflow won't be right and it'll sound like a dodgy Corsa

Why not just pretend you ride a Hardly Abelson, and, when you get the bike home from the dealer, just cut the exhausts off with an angle grinder below the engine.

Myke

 

[Old Codger]

Wont be long

Before you can get a bag of Tou rat wat Holes

For £300

Just about to start a production run

 

[Nutty]

Does Dolly Parton sleep on her back?

Do it, do it

 

[scottpa]

What I miss most about EFI bikes is hitting the engine kill on the over run and the subsequent rifle shot out of the exhaust

Andres

I remember doing that on an old bandit 1200 with a quill exhaust. Great fun.

I tried it once in my old Peugeot 309, it blew a hole in the rather tired back box.