My yamha sr 185 it is turning over but it is not sparking and there was astrong petrol smell like its was flooded

something is stopping the fuel and spark
items that prevent those things are
broken timing belt /chain
problem cam/crank position sensors
immobilizer problem
ECM problem

Does it have spark to the plugs? Have you tested the fuel pressure? Is the timing belt broken? Have you checked compression?

cranks but will not start, clear as day, (few are) and floods.
no year, stated. not that makes this so very hard,
220sei? what is that? are you trying to say XV20?
no engine stated, nor country.
so i spin the wheel if fortune and land, 1996, XV20
and USA< and 3.0 L 1MZ-FE V6 engine.

1. fuses good, ? "tested"
2. keyon CEL lamp in cluster glows, if not PCM has no power. or lamp bad, fix that.
3. connect scan tool crank for 5seconds, oh my gosh the PCM knows what's bad.? 1987 to now at least, all cars. so it says cam, crank sensors. or spark is bad.? DTC errors??????
4. did you check for spark on all 6 cylinders, (do that tuneup now?, long forgot for 10 years?)
5. eg: i got spark but timing is off, cam drive slipped, is why. omg , I fail edto do my timing belt service, if car has VVT boom you bent all the valves, many for sure. or just one bank. non VVT this does not happen,,3LV6
6. ok , i checked compression, all are over 150, I now have spark and it still floods. so i Pull the fuel pump relay. and clear the flood and try test fuel it runs great for 3 second, cool !
7. i then diagnose flooding, causes. (leaking injectors or too high fuel pressure.) and more. lots ,more but ILL stop, as fueling tests are long and tedious. (can show all)

Check carefully for fuel leak. If it starts well and then gets worse as it warms up, check coolant temp sensor. May be it just smells like fuel because it misses so badly fuel is not being burnt and floods tailpipe. Check spark at plugs with timing light to avoid sparks where fuel may be present. Weak or irratic spark can be coil/module, crank/cam sensor. Remove plugs to see what they look like or which is not firing.

make sure you have spark, then check fuel filter, then fuel pump

If you smell fuel in the exhaust the vehicle is flooding or there is no spark. If it is a carb engine, make sure that the choke is in and hold you foot flat on the pedal while trying to start, this will clear any flooding.

engines need 3 things to start (petrol engine)
fuel, air and a spark,
as you have been working on your fuel system it is best to suspect this system first,
on engine turn over see if you can smell fuel at the exhaust.
if you smell fuel the fuel regulation mybe too high and the engine is flooding.
if you do not smell fuel, remove fuel line from engine and ensure fuel is getting to the engine,
(be careful not to let fuel spill this generates a fire risk)..
once fuel is getting to the engine, check your ignition system to ensure you have a good spark to ignite the fuel.
finally check your air filter is not blocked and that you have air getting to the engine.

I hope this was helpful.

Are you sure you ran out of petrol? It might be that the petrol pump or something else had died. The only way to tell is to undo the fuel line from the carb and turn it over, check if it pumps fuel (have someone help you with this.) You might also find that you've got a blockage in your fuel filter, caused maybe by **** left floating at the top of the tank that was sucked in when you ran out of petrol. Check the filter first and see if it's OK, then check if fuel is flowing. Also, on a 97 Alfa, I'd imagine it was fuel injected though I could be wrong. If it is then you'll want to be more careful wit the fuel line.

Buy some starting fluid and spray some in the carb or air cleaner intake port, if the machine is flooding do not choke while using the starting fluid, make sure you do not have too much oil in the mowwer.