air filter box/housing full of fuel

[RAGGY]

not having a very good time with the bike lately,anyway fuel tank is empty and air filter box full of fuel,any ideas anyone,cheers raggy

[Gixer1460]

Duff vacuum fuel tap or duff float valves. Expect fuel in crankcase as well - do not try starting engine if latter!

[Dezza]

What he said. Check oil level and drain if full of fuel. Then take bike outside, remove tank, drain carbs, remove spark plugs, disconnect CDI so no stray sparks, stand back and then crank the engine over on the starter. It will immediately be obvious if any of your cylinders are full of fuel as this will be forced upwards in a jet out of the plug hole.

[fatblokeonbandit]

For this to happen you have to have the 2 problems at the same time, the fuel tap passing when engine not running, and one or more float valves not shutting off.

 

Do as dezza says above, then stick your carbs in a vice and rig up an auxiliary fuel supply, that will show you which float valve is passing, and try it again when they have been cleaned or replaced.

Then check fuel tap isn't on prime before fixing it..

 

 

[RAGGY]

holy shit just took the starter case cover off and a mixture of what looks like fuel and all the engine oil came pissing out everywhere i reckon a good couple of litres.this has only happened since i took the tank off to get at the starter motor.there is no fuel switch on the tank just the 2 hoses fuel and vaccum.shall i leave the starter crankcase open with no cover to let any fuel evaporate,cheers raggy

[Swiss Toni]

Take the oil filler cap off, and have a good sniff for petrol fumes. 

[fatblokeonbandit]

At the very least you need to change the filter and drain all the oil in the sump and the cooler, is the cooler top or bottom fed??

Last time this happened I used some cheap oil to flush the system completely..

 

if the tap doesn't have Prime then its definitely passing so will need rebuilding..

[RAGGY]

so if the tap dosent have a  switch/lever to turn fuel off when you disconnect fuel hose should it automatically stop?and if thats the case is it a faulty fuel tap and if so where can i get one,cheers raggy,ps thanks for all the help everyone,cheers raggy

[fatblokeonbandit]

Yes it's a vacuum tap, no flow if the engines not running...

See you can get a repair kit..

 

BUT the carb float valves must be passing as well or they would shut off and not flood the engine....

[IceKat]

Yes combination of  problems, vacuum tap membrane  calling it a day and a float hanging open. Just had the same problem with one of my B12s

[RAGGY]

15 hours ago, fatblokeonbandit said:

Yes it's a vacuum tap, no flow if the engines not running...

See you can get a repair kit..

 

BUT the carb float valves must be passing as well or they would shut off and not flood the engine....

hi can you direct me to a repair kit,cheers raggy

[fatblokeonbandit]

17 minutes ago, RAGGY said:

hi can you direct me to a repair kit,cheers raggy

No idea what year yours is but ill bet they haven't changed much??????

 

just do a search????

 

https://www.wemoto.com/bikes/suzuki/gsx_750_w_x_inazuma_js1ae/98-99/picture/fuel_tap_repair_kit

[RAGGY]

1 hour ago, fatblokeonbandit said:

No idea what year yours is but ill bet they haven't changed much??????

 

just do a search????

 

https://www.wemoto.com/bikes/suzuki/gsx_750_w_x_inazuma_js1ae/98-99/picture/fuel_tap_repair_kit

 

[RAGGY]

thanks for that just ordered one,cheers raggy

[RAGGY]

21 hours ago, fatblokeonbandit said:

At the very least you need to change the filter and drain all the oil in the sump and the cooler, is the cooler top or bottom fed??

Last time this happened I used some cheap oil to flush the system completely..

 

if the tap doesn't have Prime then its definitely passing so will need rebuilding..

gonna change oil filter and all the oil in the sump looks like its all gone/drained.as for the cooler its bottom fed should i disconnect the feeder pipes or do you think the oil would have drained when sump plug was removed,thanks again raggy

[fatblokeonbandit]

I would take both pipes off and let it drain, it makes sure there isn't any contaminated oil in there..

[RAGGY]

thanks for that,asda have got some castrol gtx 10w40 synthetic engine oil for £15  should be £25 would this be ok for now to ride with it in as its basicly to flush the engine but also to ride with in for 2 weeks till i get some proper oil,cheers raggy

[RAGGY]

fuck sake just noticed one of the carb air vent hoses is missing could this have anything to do with petrol flooding,cheers raggy

[fatblokeonbandit]

1 hour ago, RAGGY said:

fuck sake just noticed one of the carb air vent hoses is missing could this have anything to do with petrol flooding,cheers raggy

No

[Gixer1460]

3 hours ago, RAGGY said:

thanks for that,asda have got some castrol gtx 10w40 synthetic engine oil for £15  should be £25 would this be ok for now to ride with it in as its basicly to flush the engine but also to ride with in for 2 weeks till i get some proper oil,cheers raggy

DO NOT USE FULLY SYNTHETIC OIL - it causes more problems ....... mineral or semi synth only. Fully synth can kill the clutch in less than 50 - 100 miles!

https://www.wemoto.com/bikes/suzuki/gsx_750_w_x_inazuma_js1ae/98-99/picture/fuel_tap_repair_kit - I hope you have an inazuma? They ain't universal - may fit / may not?

[RAGGY]

thanks gonna go to the local motorbike shop tomorrow morning and get some decent stuff,yes i do have an inazuma gonna put some pics up asap when i find out how to do it,thanks for that,cheers raggy

[RAGGY]

just fitted the fuel tap repair kit and no leaks.

[RAGGY]

On 10/15/2019 at 6:06 PM, fatblokeonbandit said:

No

thanks 

[RAGGY]

gonna give it a start let you know how i get on,thanks for all your help

[RAGGY]

oh well no start again,fully charged battery,new starter motor,petcock rebuild kit,fresh fuel,one click on start again and smoke coming off the starter motor live feed if i keep ignition button pressed for a couple of seconds.gonna keep going though,cheers raggy