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Smokin on startup!!!!

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stonekolb

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i was given a 94 xp for free and my friend told me it won't run. he said it used to run fine but he hasn't used it in a couple years so he just gave it to me. well, i changed all the fuel lines, rebuilt both carbs, put a new battery in it and tried to start it. after being unsuccessful i searched some posts here and found one that said to pour a couple caps full of gas in the carbs and then try to start it. well, it started and ran just long enough to burn up that fuel then it died. my question is two parted; first, am i going about this right? and 2, when i started it up and it ran for the 5-6 seconds, there was ALOT of smoke coming from the exhaust. i do have it sitting on the trailer and not in water. i've been around 2 strokes for awhile and im aware that they smoke but this was much more than normal. any ideas?
 
Your on the right track, but pour the gas mixed with oil in the spark plug holes. Chances are it's smoking from sitting for so long. Be sure it is getting fuel to the carbs. It could be a plugged fuel valve. Try it in "reserve" position to see if it gets fuel if "on" isn't doing it. What kind of compression does it have? It should be ideally be at 150 PSI. The engine should suck in fuel on it's own just by cranking it, but it sounds like it isn't doing it so well.Try the gas trick on the spark plug hole again and look to see if it is getting fuel again. Don't keep cranking the starter over for more than say a few seconds at a time so it won't over heat and burn out. Let it cool too between cranking. Let us know how you make out.

Karl
 
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I wouldn't worry too much about the smoke since it has been sitting for a couple years, hopefully it was just fogged very well. You'll know more once you keep it running and clear out all that leftover oil in the cases.

Keep doing what you're doing but be careful and make sure to keep the flame arrestor on the carbs, it can backfire and catch fire easily. Keep trying to keep it running and it should get better and eventually stay running, then hook it up to the hose and let run for 4 mins. never have the hose turned on unless the engine is running.
 
As our motor is shut down it is fogged thru the carbs to lub the crank and spray
kills the engine. When we know it will sit more than a week, the plugs are removed
and spray lubbed as well, and if its for months to sit, we clamp the two oil supply
lines so the crank seals might not leak into the case. We run Stabilizer reguardless.
At start-up we respray oil, tighten the plugs, remove the line clamps, Shoot some
gas/injection oil mix into carbs. The selector is never used, unless low on fuel, and
never shut off unless working on carburetor. If not used after a week or two, the
battery is removed and trickle tendered. I Never have any problems.
SQUEEZE IT OR GREASE IT!
 
thanks for all the help guys. im gonna take her down to the river on sunday and keep it in the water (on the trailer) and see if i can get the fuel flowin. i'll keep you posted. thanks again.

tim
 
ok, NEW PROBLEM!!!! i took the fuel selector valve apart just to make sure it was clean. it was. i also checked the compression which was 150 in both cylinders. soooooo, then i poured in some pre-mixed fuel into the carbs (forgot to take the spark plug hole advice!!! sorry) and started her up. it started up right away and with a little throttle stayed running but within about 4 seconds the rpm's were as if i had the throttle pushed all the way when it should of been at idle. i obviously killed it and then tried to restart it to see if it WOULD start up on its own without pouring fuel in the carbs. i cranked it for a few seconds, waited and then again with no ignition. then i walked around to the back and noticed a pool of oil that came from the exhaust. it was a pretty decent size area, about 12 in in diameter. any ideas with these two new problems????? why the high idle? what's up with all that oil??

thanks guys.
 
If the seadoo was sitting for a while it is possible that the oil seeped in from the rotary valve shaft seals. It is supplied oil from the injector tank. Over time the oils seeps in past the seals. That should pass after it is run for a few minutes. If the engine isn't getting enough fuel it is possible it just leaned out and the rpm's took off as the mixture was getting lean. Be sure it is getting fuel. If it is getting fuel check to see if the carbs have a leak around the intake.

Karl
 
Thanks for the help Karl. Quick question... I'm going to put an inline fuel filter on it and can't figure out which line to use. Two lines go into the carbs, one on the left side and one on the right. Any ideas? Thanks in advance.
 
The line going to the pto side carb is the feed line, it splits off to both carbs. The one on the mag carb is the return lie. Don't use a paper filter, use a plastic filter so as not to hamper the fuel flow.

Karl
 
GOT 'ER RUNNIN!!! after taking it down to the river and backin the trailer in, and about 10 episodes of pourin a cap full of fuel down, she runs and runs GOOD!! no more excessive smoke or oil pouring from the exhaust. thanks alot for all your help. i have two more questions... the steering is pretty loose. is that normal and if not how can i tighten it? second, i don't think my trim works. is that a big deal and what could go bad that i would replace? thanks again for your help!!!!
 
Check the fuse in the fuse box for the VTS ( Variable Trim System). If the fuse id =s good listen to hear a clicking. If it could be corroded or the motor is shot. Look the steering over for any worn out or loose parts. It just might need some TLC.

Karl
 
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