incidental backfire through airbox/filter

[Jvheli]

Start with the basics. Since you put Ramair on, and the age of the bike, the most logical culprit is a vacuum leak.

 

[TURBO200R4]

The problem with it backfiring
in the intake is it can blow off the vacuum lines going to the map sensor and then u will have a problem running

 

[Dean0]

DeanO,
Please explain to me what a cat delete crossoverpipe means? Ik usealy make my own exhaustsystems out of scrap. The two exhausts in the picture are connected in between with a self made rvs-can with a diameter witch measures about 20 x 14 cm's. Worthwile making another connection?

Its the part that links the tail end of the header pipe to the silencer/mufflers... by the sound of it you already made one

 

[Nat67]

Backfiring through the intake is generally caused by either an over rich fuel mixture , or problems with ignition timing and / or vacuum leaks . The cause needs investigating as this is not an ideal condition !

 

[Dean0]

I’ve had four R3’s from new, all of them would occasionally backfire through the intake when stock standard if I blipped the throttle while down shifting... I noted that they no longer did once a cross over pipe was added... stock filter and tors tune.

 

[ruzzle]

I’ve had four R3’s from new, all of them would occasionally backfire through the intake when stock standard if I blipped the throttle while down shifting... I noted that they no longer did once a cross over pipe was added... stock filter and tors tune.

Four?? Capitalist pig........

 

[Dean0]

Four?? Capitalist pig........

Well... nine if you count the borrowed ones.........

 

[phar2slo]

Well... nine if you count the borrowed ones.........

Wow that sounds as if you have some nice mates

 

[Dean0]

Wow that sounds as if you have some nice mates

Might seem to be the case... but I wouldn't refer to them as nice.

 

[ruzzle]

Might seem to be the case... but I wouldn't refer to them as nice.

You'll keep.