2004 GTX 4-TEC SC - NOt reving past 5800 RPM

[acama]

Hi all,

I own a 2004 GTX 4-Tec with 26 hours on the clock. When I began warmup at idol I noticed that the engine sounded rough and RPM's were very up and down. every 7 seconds or so the RPM's would go from 1700 to about 2200, and continuned for my 10 minute warm up period.

After about 10 minutes of this I decided to take it for a spin to see if it might have been a choke (or similar) problem but the seadoo had absolutly no power and only reached 5800 RPMs, with no alarms or lights showing up on my ski.

I took the ski to the mechanic and he replaced Ignition Coil #3 as this was the only thing that showed up as an alarm.

I took the ski out yesterday and it still has the same problem. The ski iis now back at the mechanics
The ski has never been rolled or taken water and only has 26 hours on the clock and as you can imagine I am really disapointed with the ski

If anyone else has had a similar experience or might know what the problem could be, please let me know.

Summer has just hit Down Under and by the looks of things I will be confined to the sand this summer :(

[RXP26]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

JUst had an identical problem and it was the supercharger clutches/ shims .. identical to what you are saying was happening to my rxp and they replaced the clutches and shims and its fine now ..

[acama]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

Thanks RXP26, I will advise my mechanic of your issue. I will keep you posted on what he finds.


Cheers

[Dick]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

The SC clutch is probably the problem. They have a kit to repair it but an 04 should have it. Also they do not want synthetic oil used in SC motors as it makes the clutch slip. They recommend 10w40 mineral oil, of coarse they say Bombardier. As yours is an 04 and if you have synthetic oil I'd change it and see if the problem goes away. Also bulletin 2004-16 has new specs on the torque for the clutch. If you have difficulty getting the info let me know.

[acama]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

Thanks Dick,


Where would I be able to get my hands on these information bulletins spicific to my ski.

if you have soft copies I would really appreciate it if you could send them to me at acama007@hotmail.com, this way I will pass them onto my mechanic and at the same time know what to look out for.

Thanks Once again, I really apreciate everyones help.

[bic1]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

There may be a clue in the fact that they replaced the ignition coil. I had a similar problem with an 02 NA and the coil didn't fix it. What did in the end was simply changing the spark plugs! I know it's a 4-stroke and not meant to eat plugs but all I can say is that my problem was immediatley fixed. Looking at the plugs, there was no obvious sign there was anything wrong - for the small cost involved, I'd give it a go. Your dealer must think it's ignition related or he wouldn't have changed the coil.

[1fastski.com]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

my dealer always says that the spark plugs dont need to be changed for 1000hrs BUT in all the 4 techs ive tuned , everyone had rusty sparkplugs { rust around the inside center of the plug } for the cost i would say change plugs once a yr . also check your oil level if its over the line it might be a problem .

[acama]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

Thanks guys,

Lastest Update:

Apparently the problem has been fixed, this is what he told me so dont shoot the messanger if it sounds strange.

Fault that was registered after diagnosing via the BUDS system = Ignition Coil #3 shorted to ground (seen the first one with my own eyes)

On the engine block the spark plugs are numbered 1 to 3. So when the 1st time alarm occured(Ignition Coil #3 fault) he replaced the coil out of plug position 3. This did not resolve the problem after a test run.

When I retuned the ski to the mechanic the fault did not show up again on the BUDS system.

At this point the mechanic changed the computer and took the ski out on a test run. This did not solve the problem.

When he retuned from the test drive he picked up the (Ignition Coil #3 fault) with the BUDS system. This time the mechanic took a punt and replaced the coil from position 1 on the block. He took the ski out for a test run and voila the problem was gone. He tells me he was able to get to 60MPH (I have never been able to get to that lol).

He tells me that the alarm Coil # through BUDS does not correspond to the actual spark number on the block.

Hence;

Ignition Coil #3 fault alarm = Spark # 1 on Block.

Ignition Coil #2 fault alarm = Spark # 2 on Block

Ignition Coil #1 fault alarm = Spark # 3 on Block,

He went on to tell me that that he placed the originally suspected faulty coil (taken from position # 3 the 1st time around) into the spark plug position # 1 the second time around. and this seemed to fix the problem.

I am going to pick the ski up tomorrow and taking it out for a test run at the same time, fingers crossed its fixed,

What are your thoughts people, could this be a coincidence that ski has come good or could this be a genuine issue with the alarm vs plug number on the bloke.

[bic1]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

I'm glad you got to the bottom of the problem!

When I had my spark plug problem, I sat with the mechanic whilst he ran the diagnostics. All he did was switch off each cylinder in turn, seeing when the revs dropped or not. Once he found the cylinder where the revs didn't drop further when it was switched off, he knew which cylinder was causing the problem. All he did then was to first substitute a coil and the a spark plug until the revs dropped when he turned that cylinder off.

I thought at the time that he did a good job and also that the software he was using was pretty good. I am as sure as I can be that the software WAS identifying the correct cylinder each time - my mechanic certainly didn't have any problem mixing up nos. 1 and 3.

Out of interset, the mechanic also said that the coils can fail as a result of rinsing the engine after salt-water use - somthing I do all the time.

Anyway, alls well that end well!!

[acama]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

Went out this morning for a good 1 hour, the ski seems to be back to normal.

In almost perfect conditions my top speed was 99 kmh, and accelerations/take off was back to normal.

Now I just hope the worst is behind me and my ski and the summer ends up being a good one.

Thanks to everyone who has input into this topic.

bic1, interesting point that one about the coil failing if u rinse the engine, I also do (did) this all the time.hmmmm

[London Ontario Boater]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

Went out this morning for a good 1 hour, the ski seems to be back to normal.

In almost perfect conditions my top speed was 99 kmh, and accelerations/take off was back to normal.

Now I just hope the worst is behind me and my ski and the summer ends up being a good one.

Thanks to everyone who has input into this topic.

bic1, interesting point that one about the coil failing if u rinse the engine, I also do (did) this all the time.hmmmm

Not a seadoo expert and don't want to put a dumper on things, but generally boating=money & maintenance & repairs. maybe not this season. but it will....

-Gab

[4-TECin FLA]

Re: 2004 GTX 4-TEC SC - NOt reving past 5800 RPM

I had the same problem. It was the coil. Took 2 dealers to figure it out. The first one admitted they had no clue!