I would check the plugs again. They may be saturated with fuel on them. On top of it did you get the right plugs? How freely does the motor spin when cranking it? Also did you check the resistance of the coils? Did you ohm every injector out? Did you check fuel pressure at all? Maybe a skipped a tooth on the timing? Do you still have the stock timing tensor or oem. Next time use spark notes so faster to read

 

I agree that it sounds like it could be a fuel problem but its very possible that a head gasket could be an issue. The symptoms are right. And those are simple tests to check on the condition of your engine anyway

 

The fuel was not old when the problem occurred but then again, here in Sicily, the fuel is not the best like in the states. Lots of people here complain about the fuel. What would be the best adative for my fuel?

I took my bike out yesterday and was very excited, no loss of power, no missing cylinders and started just fine. Also, anyone have any recommendations for a replacement exhaust? I know, everyone has their own opinion but there has to be a trend for what works best with the F4i?

 

Never mind about the exhaust, I can search for other threads.

 

Well, I am going on about a month now with no problems at all. Its crazy but I read on another thread about someone running the starter with the throttle all the way open for about 5 seconds at a time. Let it sit for a min. and then do it again. Do this 5 times and then try to start the bike normally. The engine was cold when I did it. When I finally tried to start it, it took right off. I haven't had a problem since. Could have been the gas, it could have been a wet cylinder. Who knows really but all 4 are running. Thanks for all the advice.

 

Sounds like it was a wet cylinder. cranking with the throttle open helps it to dry out a bit. You should still have it pressure tested just to be sure the cylinders weren't washed down with coolant

 

having this issue may I please get you answer you discovered

 

Its crazy but I read on another thread about someone running the starter with the throttle all the way open for about 5 seconds at a time. Let it sit for a min. and then do it again. Do this 5 times and then try to start the bike normally. The engine was cold when I did it. When I finally tried to start it, it took right off. I haven't had a problem since.

I followed the instructions to the T, cold engine, throttle wide open, crank for 5 seconds, wait 60 seconds, repeat 4 more times.

Good luck

 

Thank you ill give it a go and see