SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: bajaleo on May 23, 2015, 03:41:53 PM

Title: Help! No start on the ramp jack smith
Post by: bajaleo on May 23, 2015, 03:41:53 PM

Pulled off the air cleaner. Carb is dry inside. Twisted the throttle. No gas. Removed one of the feeds to the carb and cranked the engine over. No gas came out. And yes, there is gas in the tank according to the gauge. Suggestions?

Title: Re: Help! No start on the ramp jack smith
Post by: GT Jets on May 23, 2015, 03:47:34 PM

Plugged pickup or stuck anti siphon valve? Probably a bad fuel pump.

Title: Re: Help! No start on the ramp jack smith
Post by: bajaleo on May 23, 2015, 03:56:27 PM

Forgot to mention. BBC w a Berk. Mechanical girl pump.

Title: Re: Help! No start on the ramp jack smith
Post by: philofab on May 23, 2015, 03:58:09 PM

First trip out of the season? Mech fuel pumps like to rip the diaphragm after sitting for extended periods. Luckily they are cheap and easy to replace.

Title: Re: Help! No start on the ramp jack smith
Post by: GT Jets on May 23, 2015, 03:58:16 PM

Quote from: bajaleo on May 23, 2015, 03:56:27 PM

Forgot to mention. BBC w a Berk. Mechanical girl pump.

You should always use a boy pump.

Lol

Title: Re: Help! No start on the ramp jack smith
Post by: GT Jets on May 23, 2015, 04:00:48 PM

Pull the fuel line from the "in" port of the pump and see if it will suck on your finger with the engine cranking.

Squirt  a little oil in the fuel pump inlet and try it again.

Good luck

GT

Title: Re: Help! No start on the ramp jack smith
Post by: Flusher on May 23, 2015, 04:45:14 PM

Priming the carb(s), i.e. filling the float bowls with fuel prevents a surge of fuel from slamming into the needle & seat/floats as well as sparing the battery/starter excessive cranking.

Hope you get it going,

Joe

Title: Re: Help! No start on the ramp jack smith
Post by: bajaleo on May 23, 2015, 05:43:53 PM

No suction from the pump when cranking the engine. Auto zone says it's a hi perf pump. Checking O'Reilly in BHC.

Title: Re: Help! No start on the ramp jack smith
Post by: bajaleo on May 23, 2015, 05:56:08 PM

Possible to add pics here?

Title: Re: Help! No start on the ramp jack smith
Post by: bajaleo on May 23, 2015, 08:31:33 PM

Replaced my non working Holley fuel pump with a new one of the same from O'Reilly in BHC and she fired right up. Thanks guys. This forum rocks!

Title: Re: Help! No start on the ramp jack smith
Post by: GT Jets on May 23, 2015, 09:08:13 PM

Quote from: bajaleo on May 23, 2015, 08:31:33 PM

Replaced my non working Holley fuel pump with a new one of the same from O'Reilly in BHC and she fired right up. Thanks guys. This forum rocks!

Awesome.

Buy some Stabil and dump it in before you put it away for the winter. Also remember to run the carburetors out of gas.

Have a great weekend.

GT

Title: Re: Help! No start on the ramp jack smith
Post by: bajaleo on May 25, 2015, 06:16:41 PM

Quote from: GT Jets on May 23, 2015, 09:08:13 PM

Awesome.

Buy some Stabil and dump it in before you put it away for the winter. Also remember to run the carburetors out of gas.

Have a great weekend.

GT

Thanks for the advice. Will start using Stabil at the end of the season.

How do I run the carb out of gas?

Title: Re: Help! No start on the ramp jack smith
Post by: GT Jets on May 25, 2015, 06:52:17 PM

Quote from: bajaleo on May 25, 2015, 06:16:41 PM

Thanks for the advice. Will start using Stabil at the end of the season.

How do I run the carb out of gas?

I have ball valves on the tank pick ups.  Just close them on the ramp and let her idle to she dies.

GT