Hey, are ther any decent seadoo mechanics near Hendersonville, Tn? My sportster has an issue, the left motor stalls out and will not get up to normal rpm. Changed plugs, put it on the wat ran fine for about 20 minutes, then same symptoms, hard to start, will not respond to throttle above 4000, when it's at idle it shuts off. HELP.
-
This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.
1998 sportster 1800
- Thread starter swneely
- Start date
- Status
are you handy at all? I would start by checking fuel lines, if you have any grey ones, replace them. Then clean carbs. Is the gas fresh or old?
It really could be any number of things and if you can provide more details there are lots of very knowledgable people who can help you out. As to mechanics being near you, not sure, call up the nearest powersports place (google it) and see if they have and seadoo guys there.
It really could be any number of things and if you can provide more details there are lots of very knowledgable people who can help you out. As to mechanics being near you, not sure, call up the nearest powersports place (google it) and see if they have and seadoo guys there.
I do see some grey lines. Fresh gas, this was the 5 time out this year. Ran fine first 2 times, then broke shift cable Memorial day, replaced it took it back out, ran fine. Took it out again and ran into a cove that was way to shallow, had to get out and push, actually took 3 of us to get it moving, beeper went steady tone for 30 seconds then shut of. Ran fine the rest of the day, 4th time ran fine until I went to run back to dock left engine lost power, stalled and was hard to restart. Brought it home replaced WET plugs today,Went to lake today ran great for a while then lost throttle response on left motor, stalled, hard to restart, loaded it up and now trying to diagnose. I do need to do compression check, bought this one last year, ran fine the remainder of the year.
Last edited by a moderator:
Could be sucking junk form the tank. My filers were clogged just like yours. Clean up the carbs and put Fram G2 exteral fuel filters about 1' from the fuel pump. Should catch all the junk. The only place the gray tempo lines should be is the pulse line from the engine to pump becuase of the coat gards rules on fule lines. You were more than likely starving the engine for fuel. Are you talking about the accelerator pump line?
The only grey line is the bottom line from the engine to the pump. The line I'm curious about is the small line on the carb, it's about 3 inches long, hooks to the bottom of the carb and the lower hookup on the small pump. It has a metal orifice that restricts fuel flow. Is that normal?
Many of the skis and I assume boats have a "Orifice" in the return line. This is to help with fuel pulsations and maintain a nice constant fuel flow/pressure. I am guessing this is what you are looking at.
Most don't even know it exists and never replace it when installing new lines and they never have an issue due to not having the orifice.
Thank you Coastiejoe, at first I thought it was a blockage, then I ran a long slender screwdriver through the line and that's when the orifice tube came out. It has a very small hole. So that's the return line. The other line goes to the top of the carb, I cleaned it out, cleaned the small opening in the carb. So far the only thing I found was that the internal filter was partially clogged. Cleaned it with soapy water, reinstalled. I still need to do a compression check.
jhjesse
Well-Known Member
Check out this thread on the orifice:http://www.seadooforum.com/showthread.php?60659-99-Challenger-accelerator-pump-question
Glad you are making progress. I was hoping you would not run it again until problem was found. Two strokes running lean will melt a piston.
ocod
Well-Known Member
try 99spxxx or minnetonka4me......
damn that really sucks. It must of burt the piston up. Most of the time you will see a hole right in the middle of the piston. You can do a top end kit and wait for the rest of the engine to go. Unless you get a used one with low hours, but most of time that price is not much different than a rebuilt unit. Hope you get one for a good deal. Your best bet might be to buy a ski take the working enginge and part the rest of it out. You could come out pretty well that way.
Sportster-2001-951C-Stock
Well-Known Member
If your front carburetor isn't fueling properly, running lean most likely reason for the loss of compression in that cylinder. Fueling problems are the Achilles heal of two-stroke engines, too lean or inferior quality and the piston crown overheats, fuel also carries the lubricating oil to bearings and rings, preventing rapid wear and galling.
Lack of sufficient fuel in correct proportion with lubricant will damage any two-stroke engine every single time.
Lack of sufficient fuel in correct proportion with lubricant will damage any two-stroke engine every single time.
I have tried posting a picture, no luck. I'm not sure I want to go with sbt, my neighbor has two skis and had no luck with the three sbt engine he bought. I'm looking at fullbore. I know that piece of piston had to get to the bottom at some point. The head is dinged up on that side. So replacing the hole engine seems like the better choice.
Anyone want a project Cuddy cabin. 88 citation 18 foot with wake tower. Cheap.
Anyone want a project Cuddy cabin. 88 citation 18 foot with wake tower. Cheap.
Last edited by a moderator:
I just had an aha moment, I grounded the boat in mud, the alarm went solid tone for around 30 seconds, could have benn longer. Yep that's the day I started having issues.....duh hindsight... Replace motor install depth finder. And clean out ALL water lines.
Last edited by a moderator:
- Status
Similar threads
- Locked
