help please 94 gtx

[wildseadoo]

hey everyone i am new here and looking for some guidence. i have purchased a 94 gtx. when i got it, it ran great. we only had it in the river a few times and then put it up for winter. when we got out of storage and got ready for summer we found the starter was gone. i purchased a new starter and put on. it ran great the first two times in the river but the last time we had it down we ran it for about 30 mins and coasting back to shore it stalled and would not fire. the battery seamed to dye. i took it home and charged the battery and hooked back up but it seams like the battery is not charged but according to the volt meter showing plenty of juice in it. tried another battery and the same deal. could it be the new starter? why would it stall coasting into shore and not start again? the plugs look great and not fouled. any help would be greatly appreciated as i want to get back in the water asap. thanks in advance.

 

[wildseadoo]

oh forgot to mention when i got back to the garage and hooked up new battery it rolled over slowing and then let a backfire out and then contiued to roll over but would not fire. please help..tks

 

[kustomkarl]

Welcome to the seadoo forum wildseadoo. First thing I would check all the wire connections from the battery to the ground on teh engine...next to the starter. Next be sure the battery is fully charged. Take it to like Auto Zone and have them Load test it. It could have 12 volts and fully charged, but under load only produce 9 or 10 volts. It could have a bad cell or 2. Next do a compression test. If the cylinders are low on compression it could be a problem too. Here is some information on doing a compression test if you want to go that far.You'll need a compression tester. Go to Auto Zone. I think they sell for like $25.00. The compression guage, will screw in the cylinder head in place of the spark plugs. To test compression, remove both spark plugs. Place spark plug caps on the plug cap studs near the cylinder head to ground the empty caps. This completes the circuit of the ignition electrical system and prevents any electrical problems from the caps being un grounded. Using the correct adapter for the threaded end of the tester,( same length of the spark plug threads length)screw in the tester in one plug hole. Hold the throttle wide open. Push the start button. Watch the compression gauge, when it peaks out at the most compression, let go the start button. Read the psi number. I would do it 3 times to be sure it is accurate. Check both cylinders the same way. The ideal compression is 150 psi per cylinder. If it is less, it's not a problem as long as they are close to being the same. If the psi is less than 90 it might need be time for a tear down and a rebuild. If the psi in 1 cylinder is say 140 psi and the other is 80 psi you need to tear down and repair. This difference is a lot and there is a problem. I hope this helps you.

Keep us posted on you progress and if you get in a jam give us a shout.

Karl