gsi needs gas or starting fluid to start.

[ricardo1]

I rebuild the carb and changed the motor and it runs great but after sitting for a while it needs gas or starting fluid to start, once it starts I can turn it off and back on with no problems and the ski runs great for whatever time I ride it.

 

[- BiRkS_]

Do you have the choke hooked up properly? You need to pull the choke when starting cold.

It cuts off air flow, which ads more fuel to the mixture when cold.

 

[Coastiejoe]

Starting fluid is a big no no...

It will wash the cylinder walls and can easily cause engine damage. Even spraying just gas into the carbs can cause harm. If you are going to spray into the carbs, get a bottle with a 50:1 mix and use that...

I do not know what keeps the fuel in place. Such as a check valve in the fuel pump for example. But it sounds to me that the part that does so has failed.

Try this, ride it like normal, when you get to the dock, pinch the fuel line with pinch pliers. Wait the normal 24 hours or so, remove the pliers and see if it starts. If so,,, you know what direction to head.

If not, then it is likely a carb issue.

 

[ricardo1]

If I pull the choke out it makes no difference.
Maybe I adjusted the choke way too much?

 

[68ragtop]

Choke is pretty easy. A little play in the cable, but make sure there is enough clearance between the adjustment barrel & the hardened end so you can get the butterflies to close completely. Have you started this same ski in the past, & was it better before? you could have your idle speed turned too low, carbs not synced, or maybe even a little too lean on the low speed screw.

How does it run otherwise? anything out of the norm? hesitations, etc.

 

[Sportster-2001-951C-Stock]

Yep, first make sure your choke plates fully close when the choke is pulled and they're completely open when the choke is released.

Mix up some oil and gas premix in a squirt bottle, your engine needs that oil for lube and I've seen heads poped off the block by someone using either starting fluid, that stuff is hard on engines, throw it away and use premix instead.

 

[ricardo1]

Thanks guys, the nuts holding the cable on the black plate had come loose so the nut was not threaded into the bolt so i adjusted that and was holding choke and it started right up, i also put some oil on the pistons to lubricate them some after it started on its own.

Sent from my Samsung GALAXY S4 using Tapatalk 2

 

[Sportster-2001-951C-Stock]

Good work, I like to put a few squirts of mineral 2 stroke oil in both carbs and fire it up till it sucks the oil in and begins smoking, to fog it if I'm going to park it for more than a few days. Mineral 2 stroke oil for that b/c it stays on cold cylinder walls better than synthetic and doesn't absorb water from the air. That's how I'm using up the old oil leftover from my previous seadoo.

 

[ricardo1]

Thanks spoerster, so if I drop some oil in the there for the walls to stay lubricated while it sits for more then a couple days it will help the rings stay lubricated for longer life.

 

[Sportster-2001-951C-Stock]

Thanks spoerster, so if I drop some oil in the there for the walls to stay lubricated while it sits for more then a couple days it will help the rings stay lubricated for longer life.

Yep, that's the idea. The oil provides a protective film to help keep corrosion to a minimum. I like to put the oil in the carbs so it goes through the crankcase and leaves some extra lube in the bottom end during storage periods.

Mineral oil is superior to synthetics in this case because it doesn't absorb water from the air and mineral also remains on cold surfaces longer as well. For storage corrosion protection, mineral 2 stroke oil is the better choice over synthetic IMO.

 

[2000mgt]

I have a cute story about starting fluid. I just picked up a parts machine from a guy that used starting fluid to start his machine and his buddy borrowed it one day and used a little too much and the ski is literally in two pieces now. The starter make a little spark when it turns on and WILL ignite any fumes in the hull.....Made pulling the engine a breeze though!

 

[ricardo1]

haha the gsi stinks like fumes and stuff so glad I didnt use the starting fluid much.