wozzer
Guest
My 1150 backfires, usually when cold and changing down a gear/letting off the throttle. Any ideas as to what could cause it, what damage it's doing ?
Room 101
Registered user
Mine does it too... is it anything to do with having a Y piece inplace of the cat' converter.. 
ktmmark
Registered user
Mine did (1100) till i balanced the throtle bodies @ the weekend ,yours could be the same
Fanum
Toubab
Most common cause is an air leak in the joints between downpipes /y piece or y piece to back end......take it apart, clean it, align it properly and put it all back together properly 
Fanum said:Most common cause is an air leak in the joints between downpipes /y piece or y piece to back end......take it apart, clean it, align it properly and put it all back together properly
that's what i thought with mine. taken it apart twice now back to the manifolds, reassembled with silicone and it STILL backfires
flooky
Guest
i like it, 
mine does it 2
and flames up if i rev it then shut off quickly
mine does it 2
and flames up if i rev it then shut off quickly
Fanum
Toubab
cookie said:that's what i thought with mine. taken it apart twice now back to the manifolds, reassembled with silicone and it STILL backfires
Yours doesn't backfire.
It's just your varient on blaming the dog for your flatulance.
wozzer
Guest
flooky said:i like it,
mine does it 2
and flames up if i rev it then shut off quickly
Oh, I like it, but is it doing it any harm, my neighbours are concerned that the engine may be damaged, at least I think that's what they're gesturing about when I pull away at 6 am !
My 1150 backfires with a Y+standard can, but not Y+Remus. I've swapped them back and forth several times and faffed about ensuring the pipes are sealed properly. (I did see a lengthy explanation on here somewhere that the backfiring is due to back pressure with a Y+standard can set-up. Dunno if that's true, but I know which set-up backfires on my bike and which one doesn't .)
Although the Remus is slightly louder overall than I would ideally like, the backfires with the standard can were a serious pain, especially in villages and near horses, so Remus it is.
.)Although the Remus is slightly louder overall than I would ideally like, the backfires with the standard can were a serious pain, especially in villages and near horses, so Remus it is.
wozzer
Guest
Atkule said:Try typing 'Backfire' into the search box and prepare to sit down for a while
Blimey, they all do it ! I'll think I'll just accept it's a GS characteristic and s*d the neighbours !
GS Rider
Registered user
bang
Has it had the cat removed if so no worries the only damage would be to the mufler inside the box. 
watch for old ladys
If not see your dealer or local bike shop as it could be incorrect mixture settings
Mine does it every now and then (hot mainly). Just slow down a bit more before you change gears that works best for me anyway
Bill
wozzer said:
Has it had the cat removed
if so no worries the only damage would be to the mufler inside the box. watch for old ladysIf not see your dealer or local bike shop as it could be incorrect mixture settings
Mine does it every now and then (hot mainly). Just slow down a bit more before you change gears that works best for me anyway
Bill
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