2000 GTX RFI bogging on take off why?

[rkkoeb]

So my buddy has a 2000 GTX RFI and when he takes off and punches it nothing happens right away. Basically bogs until you feather the throttle. Once going runs great. Following has been done

• 150 PSI per cylinder
• New Fuel pump and filters
• Fuel injectors cleaned
• RAV vales cleaned

What else should I look at that can cause this issue?

 

[Ckrawiec]

BOGGING is usually a sign of "impeded" fuel delivery into the engine......WHAT the impediment ultimately is...IS the question.....you gotta check everything in the fuel system path......dirty injectors maybe?

 

[rkkoeb]

The fuel injectors have been cleaned so not sure if this is the issue. Also new fuel pump and filters.

 

[POPPS]

Is the new fuel pump aftermarket or OE?…aftermarket’s often have issues…?

 

[mikidymac]

What Popps said.

 

[rkkoeb]

I think he purchased a after market one but the one we took out was the stock pump and we had the same issue.

 

[etemplet]

Is the battery good and Fully Charged? Is the charging system functioning? Are you getting really good fire? Pull the crank sensor and clean it off. I'm not a fan of clipping the plug wires 1/4 back on the RFI because the wires are short anyway LOL but you might try that.

I'd definitely to a fuel pressure check as @POPPS suggested. With the engine running.

Have you considered an issue with your jet pump? Might be worth pulling and making sure it isn't binding. Good Luck.

 

[tomanycars]

Why are these post never finished with an end result. These people should get kicked off of this forum.

 

[etemplet]

LOL, some people don't follow up or just give up. I got a RFI kicking my azz. Some stuff is not gonna be solved on the forum but You'll get some help and suggestions.

 

[POPPS]

We are all trying to help…the rfi’s and Di’s are tricky to diagnose…the original fuel pumps are no longer produced.

 

[etemplet]

We are all trying to help…the rfi’s and Di’s are tricky to diagnose…the original fuel pumps are no longer produced.

Yessir and even more difficult "long distance." D:

 

[tomanycars]

We are all trying to help…the rfi’s and Di’s are tricky to diagnose…the original fuel pumps are no longer produced.

 

[tomanycars]

Are the fuel pumps the problem some of the times even if they only act up for 5 minutes when first out on the water. Do after market fuel pumps even work ,

 

[etemplet]

There are threads on the forum where there is some interesting discussion concerning the fuel pumps. One Quantum Pump was recommended over the other but off hand I don't remember which one. Some people have had good luck with the aftermarket pumps. I know the local Seadoo dealer has installed aftermarket pumps but I don't know which one they used. All hearsay until you do it yourself. I don't see how anyone can troubleshoot the pump without a fuel pressure gauge set up. Good Luck.

 

[tomanycars]

Yea i am making up a set now.

 

[etemplet]

I bought a set from a guy that makes them for the DI and they work great but you don't need that for the RFI. I bought an extra fuel hose and put a TEE in the line with a shrader valve so I can just connect my testor up.

 

[Dtrain55!]

I found a new fuel pump module for my 98 rfi on ebay. It said oem on add . When I recieved the part other than the aluminun can was too tall it worked perfect. I cut the can to fit my tank, There was a BoSCH sticker and part number on it.

 

[etemplet]

I found a new fuel pump module for my 98 rfi on ebay. It said oem on add . When I recieved the part other than the aluminun can was too tall it worked perfect. I cut the can to fit my tank, There was a BoSCH sticker and part num
on it.

What part did you have to cut?? I'm curious.

 

[Dtrain55!]

I cut about 4 in off the top of the aluminum housing then drilled holes in the top to replace the holes I cut off. The add said fits all rfi from 98-11. the add is still on ebay.The gas tanks must of got deeper after 98.

 

[tomanycars]

I bought a set from a guy that makes them for the DI and they work great but you don't need that for the RFI. I bought an extra fuel hose and put a TEE in the line with a shrader valve so I can just connect my testor up.

Do you have any pics of that . Could you just put a fuel pressure gage in and leave it. I ended up taking the ski to the local repair for the no power problem. If they can't figure it out i will and i know i will. I have read a lot of post from you and am starting to understand the trouble shooting techniques you use. I am so busy right now I cant do it. but i have winter off. To be honest i am so pumped i want to work on them. I have 3 and something will go wrong sooner or later

 

[tomanycars]

Great post.

 

[etemplet]

Do you have any pics of that . Could you just put a fuel pressure gage in and leave it. I ended up taking the ski to the local repair for the no power problem. If they can't figure it out i will and i know i will. I have read a lot of post from you and am starting to understand the trouble shooting techniques you use. I am so busy right now I cant do it. but i have winter off. To be honest i am so pumped i want to work on them. I have 3 and something will go wrong sooner or later

I messaged you a few days ago. Check your messages I'll respond there.