Oil change/filter seadoo 2stroke 99 gsx limited

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99 GSX limited 2 stroke Seadoo
#1
Hi guys, im new to the forum and also to the jet ski pwc world. I currently own a 99 gsx 2 stroke and was wondering on the oil change. When is the right time to do it, what other fluids should i be checking on? Every how many hours? Does it have an oil filter? Someone told me no oil filter on these engines, i heard about the jet pump oil too. Is it necessary to flush it? I live in Florida use this thing weekly, it came from chicago and had only been on lakes no saltwater at all. Ive put roughly 11-12 hours on it. These may be dumb questions but to someone like me that dont know absolutely nothing, would be great help to get some answers. Jet ski is currently sitting at 56 hours btw. Thank you everyone
 


ocod

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2014 FX SHO // 2015 VXR
#3
Hi

Welcome to the site

You definitely need to get a shop manual and use this site to get as much info as you can
Better to ask dumb questions now than later

Ill answer your questions in order
1. Its a 2 stroke and is either oil injected or mixed in the gas?
Hence the no oil filter per say but there is one coming from the oil tank to the oil injection if its
still intact?
2. I'll add oil comment here. You need to run specific seadoo oil that is API-TC certified
If oil your adding is TC-3 its not good for your engine
3. Ill add comment in here about your engine.
It is the most powerful 951 which is very sensitive and requires maintenance if it has
grey fuel lines
4. You have to flush it and needs corrosion protection sprayed all over it after every salt water ride
Even spraying fogging oil down cylinders and in carburetors.
Salt is our enemy
5. The jet pump has bearings and should be serviced at the end of season which never ends for
us in South Florida

Ill hit you up next time I make day trip to Marco island / Naples
 
Messages
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Location
Naples Florida
Water Crafts
99 GSX limited 2 stroke Seadoo
#4
Hi

Welcome to the site

You definitely need to get a shop manual and use this site to get as much info as you can
Better to ask dumb questions now than later

Ill answer your questions in order
1. Its a 2 stroke and is either oil injected or mixed in the gas?
Hence the no oil filter per say but there is one coming from the oil tank to the oil injection if its
still intact?
2. I'll add oil comment here. You need to run specific seadoo oil that is API-TC certified
If oil your adding is TC-3 its not good for your engine
3. Ill add comment in here about your engine.
It is the most powerful 951 which is very sensitive and requires maintenance if it has
grey fuel lines
4. You have to flush it and needs corrosion protection sprayed all over it after every salt water ride
Even spraying fogging oil down cylinders and in carburetors.
Salt is our enemy
5. The jet pump has bearings and should be serviced at the end of season which never ends for
us in South Florida

Ill hit you up next time I make day trip to Marco island / Naples
Ive been debating on whether i want to empty my oil tank and add a whole new litter in it, different people give me different answers. And just confuses me. I know i need the XSP 2 stroke synthetic oil, (yellow bottle) right now is sitting at 56 hrs and not sure if the previous owner did an oil change or if you even do oil changes on these?

Again, someone told me that these particular engine doe not have an oil filter? This is something that doesnt need replacement?

About flushing it, ive been doing that after every single use. No matter how tire or how late it is i no is a must. For corrosion i dont have any special spray, ive been using wd40. Is this bad?

How often do you service the jet pump? Every how many hours?

Thank you a lot for your time and answers!
Deff let me know when you are down in naples/marco island. Im rigt around the corner.

Perhaps you can tell me about some good spots to lauch the jet skis/boats in Miami.
 

ocod

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Location
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Water Crafts
2014 FX SHO // 2015 VXR
#5
No oil changes other than making sure whats in the oil tank is the right oil

The oil was more for bathing the rotary valve in the smaller engines and iirc the 951 doesnt not have that.
Others may chime in on how important it is to flush old oil and and use the right oil.
Im not 951 versed.
There's an inline filter that you can replace #20
http://partsfinder.onlinemicrofiche...=seadoopwc&a=77&b=8&c=0&d=-OIL-INJECTION-TANK

Get some fluid film vs wd40

Yes change pump grease after every season.
Keeps the pump bearing clean
http://www.seadooforum.com/showthread.php?30720-How-To-Changing-Your-Wear-Ring


I launch from Goodland when I go there.
I launch from Watson Island here in Miami
 
Messages
5
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Location
Naples Florida
Water Crafts
99 GSX limited 2 stroke Seadoo
#6
No oil changes other than making sure whats in the oil tank is the right oil

The oil was more for bathing the rotary valve in the smaller engines and iirc the 951 doesnt not have that.
Others may chime in on how important it is to flush old oil and and use the right oil.
Im not 951 versed.
There's an inline filter that you can replace #20
http://partsfinder.onlinemicrofiche...=seadoopwc&a=77&b=8&c=0&d=-OIL-INJECTION-TANK

Get some fluid film vs wd40

Yes change pump grease after every season.
Keeps the pump bearing clean
http://www.seadooforum.com/showthread.php?30720-How-To-Changing-Your-Wear-Ring


I launch from Goodland when I go there.
I launch from Watson Island here in Miami
I would order the oil today, and do the respective maintenance over the weekend.

The information that youve given me is very helpful, and i need to look into the filter, no sure if to replace it or wait on it.

The jet pump is something i would like to get into as well, with the right tools and the right patience im confident i can pull it off.

Goodland? I havent heard of it.
Watson island, whats that near by? Bayside?
 

ocod

Well-Known Member
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Location
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Water Crafts
2014 FX SHO // 2015 VXR
#7
Once you flush oil tank and lines just change filter out.
Just remove and replace it.

Changing cone oil is easy.
Just just take off steering nozzle to get to it.

Goodland is at the end of San Marco and US 41
 
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Location
Naples Florida
Water Crafts
99 GSX limited 2 stroke Seadoo
#8
Once you flush oil tank and lines just change filter out.
Just remove and replace it.

Changing cone oil is easy.
Just just take off steering nozzle to get to it.

Goodland is at the end of San Marco and US 41
Thank a lot for the advices, im going to have fun this coming up weekend with this.

I got in contact with the previous owner and said that the last oil change was about a year ago.

Seems like my best bet is to flush it all and add new oil and at the same time do my filter and jet pump.

Let me know if you come up here sometime, theres this nice island called keywaydin thta gets a nice crowed every weekend.
 

ocod

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Location
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Water Crafts
2014 FX SHO // 2015 VXR
#9
Will do.

I've done ride twice and like hurricane pass.

Or area north of domes

Beach parking is the best!
 
Messages
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Location
Naples Florida
Water Crafts
99 GSX limited 2 stroke Seadoo
#10
Will do.

I've done ride twice and like hurricane pass.

Or area north of domes

Beach parking is the best!
Im about to purchase the oil, any API-TC synthetic oil works? Is that what you recomend?

The owners maual says to use the seadoo brand, but no stores here have it.
 
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