Landen Koch
Member
I’ve got a 2000 seadoo xp, and I am installing 2.3 needle seats and 95 low speeds and 167.5 high speeds. The pop off on the pto carb was good-around 20 with the dull silver spring and dropped to about 10 and always held the pressure perfectly. The mag carb I am struggling with. I have the tester on the big 5/16 nipple and every other nipple capped off with a zip tie. It will not hold pressure (slowly leaks) and pops at about 15-18 usually and falls to about 5-10 and eventually loses all its pressure. I have tried different o rings on the needle seats but I’m pretty new to this so any info would be appreciated, thanks