02 RX DI Fuel Issues-Last minute help needed, going on vacation on Saturday

[sandrews]

02 RX DI with 65 hours. Bought as a project ski. Ski would start up, but ran terrible and had low compression in one cylinder. Pulled engine, found a tear in one intake boot, scoring on one cylinder, sent off cylinders to Full Bore, cleaned everything up, got it back together and it won't start. I have good compression, good spark, but no fuel. If I pour some premix into the cylinder it fires right up. As I mentioned, the ski ran, but terrible when I bought it, now nothing. The MAINT light is not on, I get the standard tow beeps when I plug in the lanyard, otherwise no other beeping. Fuel pump primes when I attach the DESS, it has fresh fuel. If I remove the DI unit from the head with the fuel injectors still attached to the head, it releases a small stream of fuel. When i reattach, nothing.

Leaving on Saturday for a week at the lake, please help!!!!

Thank You!!

 

[soccerdan90]

Do you still have the gray fuel lines? If so you will need to change them out with regular automotive fuel lines. And clean or rebuild carbs.

 

[LouDoo]

If I were you, since you have a premium membership I would post this on premium trouble shooting also. Not too many people (including myself) know much about DI (direct injection). From what you say and if I made a guess it sounds like a timing issue.

Lou

 

[sandrews]

It does not have the grey fuel lines, and it is a DI, so it does not have carbs.

 

[LouDoo]

To add to the above comments. Since you are in need of immediate assistance PM seadoosnipe, he's going to be the best source for info. on DI models.

Lou

 

[sandrews]

I posted in the Premium Section and will send a PM, thanks.

 

[Dr Honda]

Listening to the pump isn't good enough on a Di. You need to verify the fuel pressure when you hook on you lanyard... and you need to verify the air pressure.

 

[Jonnyivy]

I'd second what Dr Honda says,... when you take off the injector rail and watch for the squirts of fuel mist coming out it indicates that the two sets of injectors are working... but there's no negative back pressure from the pistons when your doing this test. When you replace them back onto the cylinder head the fuel pump and the air compressor have to be greater than the force pushing up from the cylinders...
Seems to be a big issue with the DI's,.. fuel pressure and air pressure.... I've replaced my own pump and stripped and cleaned the compressor.

Jonny

 

[wampaku]

How is your compressor output?