My bike is bogging down, drowning plugg in fuel, white smoke & strong smell of fuil from rear cylinder, what could be the problem?

Ordinarily, rough running with a raw gas smell indicates a fuel pressure regulator or fuel injector problem, but that usually produces grey or black smoke. The white smoke may be steam, which is more serious.

If the exhaust also smells somewhat like maple syrup (that's what burned engine coolant smells like unless you are running water without antifreeze), or your coolant level is going down rapidly, you probably have a bad head gasket, cracked block or head that is leaking coolant into one or more cylinders. That's what would produce a large amount of steam, and the uneven power production is what makes the engine vibrate strongly. The mixture control system is being all messed up because the coolant in the cylinder is preventing proper combustion - on the one hand the knock vibration sensor is telling the computer that the engine is running too lean, but on the other hand the oxygen sensor is detecting the rich condition. A readout of the engine computer would be interesting to see.

Run the engine as little as possible until you get this checked out. A coolant leak into a cylinder can cause quite a bit of secondary damage.

You may be able to identify which cylinder has the problem by removing the spark plugs and inspecting them. A wet spark plug is confirmation of my hypothesis. If you have a borescope (video camera on a flexible tube or with a fiber optic bundle with a lens on the end), you can peek inside the cylinder through the spark plug hole. Otherwise, pull the head to see where the coolant leak is.

Do me a favor check the fuel injector maybe they are bad that why the odor of gaz snd the smok

Those compression figures are super low. I'm surprised the bike is running at all. That is the reason it is smoking so much. You need to determine whether the low compression is being caused by your piston rings or by the valves. Check compression with the throttle wide open again and write down the numbers for each cylinder. Then squirt some oil into the cylinders and check the compression again for each cylinder. Compare the numbers. If the compression goes up significantly then you need some piston/cylinder work. If not then the valves are your problem. A cylinder leak down test could also give you more insight. There is a forum dedicated to Suzuki GS models with tons of helpful people and info. WWW.thegsresources.com You should register if you are not already a member. I have found plenty of troubleshooting help there for my own 80 gs1100L.

Sounds like a head gasket leak. Have a cooling system pressure test and cylinder leakdown test performed. In the meantime, you should NOT drive this vehicle or you'll cause more damage.

You most likely have a bad fuel pressure regulator which is causing the fuel to dump into the cylinders and flood the car.

White smoke (steam) indicates antifreeze burning in the cylinder, or trying to, check again to see if it's blue tinted smoke,(almost looks white, but has a tint of blue, and it lingers in the air a lot longer) check the radiator level, and a compression check will determine the condition of each cylinder, evaluate the spark plugs, (there are charts on line) (this determines if the air fuel mixture it correct) let me know what the out come is.

white smoke is coolant in the cylinder buddy you have either a blown head hasket or a cracked cylinder liner strip barrel and inspect its more likely blown gasket

well your deffinately flooding if it had no problems like this before the rebuild then i would say its the needle on the float not closing all the way try takinf the carb off and take the bowl off leaving the float on and hook up the feul line and push the float up if its leaking you have a bad needle. if its not leaking then your problem may be the spark to the cylinder

The white smoke is from anti freeze. The smell of gas in your oil is probably from the same cause. I do beleive you did not clean the milled ares good enough before installing one or both of your gaskets. Just in case you did loosen one of the head bolts up for any reason....One bolt I do beleive on the right front bank of this engine has to be also sealed before re enstalling it for coolant will pass through it if not sealed

if it's a 2001 model it is fuel injected which means it doesn't have a carby. the white grey smoke is burning oil which means you might want to keep an eye on you're oil level but the strong smell of fuel and lack of acceleration could be caused by a fuel leak somewhere