[otto_kretschmer]

Hi Folks,

A friend of mine has a 2006 Suzuki Boulevard M109R that won't start.

The motor turns over but won't fire. A significant amount of fuel (a small puddle) will eventually spill out of both exhaust pipes. I pulled the dip stick for a sniff and it smells like gasoline too.

This morning I thought the fuel pressure regulator was bad. It was stuck closed and wasn't flowing the excess fuel back to the tank. So a higher fuel pressure was causing the gas puddles. This morning I went over to his house and we took the pump assembly out of the tank and took it apart for an inspection and blew compressed air thru all the lines hoping to dislodge any crud. Nothing came out and we put the bike back together with no change. The engine wouldn't start and fuel puddled out of each pipe.

So..my questions for my peeps here is does anyone know a way to test a fuel pressure regulator in a modern motorcycle or car that has the pump and regulator in the tank? I would expect they're all about the same today.

If we take the tank off, with the fuel pump in the tank, the engine will start and run for a few seconds on the residual gas in the intake manifold.

I got an idea of splicing a T in the fuel line that goes to the engine and attaching a pressure gauge and see what pressure the system has when the key is on. This may be what we do tomorrow.

I had a Porsche 914 with the 1.7 liter type 4 engine and that engine had a port on the driver side fuel rail that I was able to attach a pressure gauge but I didn't find anything like that on my friends bike.

My friend had this exact same problem about 3 years ago. He took it to the local dealer and they replaced the entire fuel pump assembly and charged him $950. A new regulator runs $115.

If he takes it back to the dealer he's going to get dinged for a grand again.

any ideas or suggestions?

thanks