tallchris99
Registered user
I changed the air filter, now it smells of fuel and I am not getting as good MPG as I used to? What might I have done wrong?
GS smells petrolley (sp) and crap MPG...
- Thread starter tallchris99
- Start date
Trullion
Registered user
Did you move the tank? Does your bike have quick disconnects, is one now leaking? I can't otherwise see how the air filter can be installed incorrectly unless it is somehow possible to install the intake incorrectly. Have you left a rag or cloth in the air filter housing? Has my other work been carried out apart from changing the air filter?
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Sent from my iPhone using Tapatalk
luke scott
Registered user
Check the quick release at knee height on the right hand side as you sit on it 
.
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david a hall
Registered user
Put it on the main stand, start the engine and look for leaks. Use a bright torch and look up the side of the tank with the bars turned, it isn't unheard of for the clips to leak where they join the tank.
What Luke Says
If it isn't "raw" Petrol from a leak? (hard to know from your description if its petrol leak or a petrol smell from exhaust in that bike is running rich then its likely that you haven't clipped the return pipe quick release fully home properly (Top one is tank return)
However Usually this is accompanied by a much heavier fuel pump sound
So basically instead of the relief valve allowing excess fuel to return to the tank its at full pump pressure and being forced through the injectors at a much higher rate than normal
OR You have a leak and fuel is pissing out somewhere Check the quick release o rings for cuts or nicks They weep fuel if damaged but are pennies to replace
If it isn't "raw" Petrol from a leak? (hard to know from your description if its petrol leak or a petrol smell from exhaust in that bike is running rich then its likely that you haven't clipped the return pipe quick release fully home properly (Top one is tank return)
However Usually this is accompanied by a much heavier fuel pump sound
So basically instead of the relief valve allowing excess fuel to return to the tank its at full pump pressure and being forced through the injectors at a much higher rate than normal
OR You have a leak and fuel is pissing out somewhere Check the quick release o rings for cuts or nicks They weep fuel if damaged but are pennies to replace
tallchris99
Registered user
No fuel is leaking. The exhaust smells of fuel.
Okay go check that the top QR is clicked home correctly In reality that is the most likely
"Unless" you did things from the Left side and you knocked the TPS with something??????
"Unless" you did things from the Left side and you knocked the TPS with something??????
Katnip
Registered user
petrol smell
It may not be relevant but I had my 10 plate gs serviced in the week. I was told that a mod was carried out on I think an O ring under the fuel tank re a BMW recall.
If it leaks you get the petrol smell apparantley.
It may not be relevant but I had my 10 plate gs serviced in the week. I was told that a mod was carried out on I think an O ring under the fuel tank re a BMW recall.If it leaks you get the petrol smell apparantley.
Cook1e
Registered user
tallchris99
Registered user
Throttle Cable not seated properly?
Just wonderin'
No problems with throttel seating. I think I was being paranoid. Got 185 from a full but not brimmed tank and had been thashing it in town.
So where are you at with it ?? Does it still smell of petrol ?
Is inside the tail pipe black??
Is inside the tail pipe black??
tallchris99
Registered user
Smells a bit petrolley out of the exhaust [pie when starting. No soot on pipe.
tallchris99
Registered user
How so? I mean how would this happen and how does this manaifest?
Well you described a petrol smell and poor mpg, eventually you told us the smell was from the exhaust after folk had been trying to help in identifying a petrol leak, but even then you only say it's when you start the bike.
As yet..... your tail pipe isn't sooty, if it was or will be, then it's the tps for sure.
It's a good idea to give as much accurate info to help the diagnosis from the start, because you may not have plugged the air sensor back in the air filter cover etc., left your Jaffa cakes in there or not taken the filter out of the box.....who knows?
tallchris99
Registered user
I will strive for accuracy in future. 
tallchris99
Registered user
Brimmed the tank, went on longish motorway ride and got 200 miles. I cannot complain.
If you have owned one of the new fart types of closed loop cat bikes where they only release flowery air fit fir small children and animals, a R11GS might smell of fuel... An airhead may make you reach for the "scented hankie"...
PS 11/1150's also have one of the most effective tanks for firing fuel back out at fill ups and hey presto... It will leave a... smell of fuel...
11's didn't have quick release fuel lines unless they have been retro fitted and you should be able to change the air filter without removing the tank... Always check the seating of the airfilter and re plug the sensor if you unplugged it...
PS 11/1150's also have one of the most effective tanks for firing fuel back out at fill ups and hey presto... It will leave a... smell of fuel...
11's didn't have quick release fuel lines unless they have been retro fitted and you should be able to change the air filter without removing the tank... Always check the seating of the airfilter and re plug the sensor if you unplugged it...
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