06-28-2011, 09:42 PM #1
Not craningk fast with spark plugs in... Starter wire getting hot!!!
Quick Run down.
This is not my ski.
2002 SeaDoo GTX limited.
4 tec. 100ish hours.
I sold a guy a car and we got talking. Long story short. (he has two 02 gtx 4tecs)
One runs fine.
The other wont start.
He has had the ski at 2 different shops. The first one told him the motor needed to be pulled to replace the starter and quoted him 1500.
The second guy(DUMBASS) owns the local lawn mower shop. He had no clue what he was doing...
So, that brings us to now.
I have his skis sitting in my garage.
someone lost the key so I tossed a stock 04 rxp ECU and key on it so ican crank it.
WHAT ITS DOING NOW>>>>
spark plugs in and pump on = one turn of the engine then stops.
Jet pump removed. = same
Plugs out = engines spins freely ....
(although i do hear a odd growl from the starter)
Battery is 100% (and freshly removed from my wifes rxp)shhhh...lol
battery cable from mpem to starter gets HOTTT while cranking.
06-28-2011, 10:19 PM #2
- Join Date
- Sep 2009
Put a multimeter across the battery terminals while cranking. If it drops below 8 volts with a good battery, the starter is toast.
06-28-2011, 10:21 PM #3
Bad starter. Trouble cranking with compression. I would bet the starter is going or is out....
06-28-2011, 10:22 PM #4
If the cable is getting hot... that means the starter is pulling an ass load of amps to turn the engine over when under load. Sounds like it's due for a starter rebuild kit! I'm not really familiar with that particular model.... but you should be able to remove the starter by only pulling the exhaust manifold off to gain better access.
06-28-2011, 11:04 PM #5
the ski is basically the same as a RXT/RXP....
Here's what ive found so far.
I swapped starter relays from the running gtx to the non running GTX.
With the good relay the ski cranked normal for 5-7 seconds but did not fire.
So I cranked it a couple more tries.
Then I realized I was trying to fire it with the 04 215 ecu. (not sure if the injectors size is the same) (or if the timing is the same)
I decided to pull the ECu and Key from the running ski. Cranks slow again...
So I then swapped back to the 215 ECU...Slow again!!!!!!
I just pluged the ski back onto the charger thinking maybe I killed the battery....(lets hope thats all it is!)
Anyone else got any ideas???
Oh and thaks for the replays guys!
06-29-2011, 12:48 AM #6
Also, check the connection of the ground and positive cables at the battery and at the engine.
06-29-2011, 01:22 AM #7
After reading all of the symptoms and the troubleshooting already accomplished, my first thought would be starter. However, the possibility exists that the motor is close to seizing. Not really what any of us would like to hear, but I have seen two 4-tecs do this. Without knowing more history it would be hard to know exactly what has happened with the engine. Pull the oil filter and look for metal. The one I worked on a couple years ago had an oil pump bolt back out, and as it disintegrated in the flywheel teeth, metal debris made its way into the oil passages and went to work on the bearing surfaces. It finally came to a halt. Same as you though, it would crank over when cold, or when the plugs were removed.
I'm hoping it is the starter.
06-29-2011, 03:10 AM #8
Tried the good relay back in the original ski? maybe the dead starter pull too many amps which damaged the relay?
06-29-2011, 06:59 AM #9
06-29-2011, 08:45 AM #10
Speaking of the relay, here is the inside of a bad one. Customer would start and stop his ski continually during a day's ride... it is only one season old. I try to let my ski idle whenever possible rather than start/stop/restart all the time... harder to do with a loud exhaust and everyone keeps asking you questions. They are definitely a "high failure" item.
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By David_HX_RXP in forum 4-Tec PerformanceReplies: 12Last Post: 05-04-2011, 08:50 PM
By Pale Rider in forum Yamaha ClassifiedsReplies: 6Last Post: 08-27-2010, 05:11 AM
By lubemaster in forum Polaris How To & FAQsReplies: 6Last Post: 08-17-2010, 09:55 PM
By peteyb in forum Polaris Open DiscussionReplies: 3Last Post: 08-12-2010, 12:28 AM
By xltsp8 in forum Polaris Open DiscussionReplies: 6Last Post: 06-20-2010, 11:54 PM