i have been chasing an idleing problem on a 2000 J130vxsss. Motor is new to me. Idles in proper range in water (700) but was around 1300 out of water with existing idle screw adjustments. Now down to 1000 out of water by going back to factory setting of 3.5 turns out. Reaches wot at 5800 on a 20 foot cc with a 15x17 prop. Idles rougher than my old I/O and this is my first experience with 2 stroke.
Seems rich and but had a regular light sneeze prior to going back to factory settings. Have not been able to pput in water since carb adjustment. Plugs are always wet with oil but not black after extended trolling.
What I have done:
Cleaned rebiult carbs, linked and sync, set idle timing at 2 atdc underway, checked all jets for seating and found two high speed loose, set idle mixture screws back to 3.5 turns out (originally found two to be at 2.5 turns out, 1 at 1.5 out, and one at .75 turns out) I suspect I had one carb lean and the others maybe running rich. Compression is at 125 on all cylinders and decarb was done. I have reclamped fuel lines and check for leaks by spraying seafoam around in takes and so forth to listen for motor change.
My next course was going to be put in the water and make final idle adlustments and reset Idle timing with carb adjustments. I read somewhere that the seloc manual may be incorrect on this adjustment. With the idle screws do you in fact get leaner as you turn them in or is it the opposite because they are metering air only and not fuel. Do not want to lean this motor out and destroy it. Have not used sight tube to check oiling rate yet either but would suspect I have plenty because plugs are wet with it and I get black oily goo from prop area after trolling.
Any thoughts appreciated before I put in water again.
Seems rich and but had a regular light sneeze prior to going back to factory settings. Have not been able to pput in water since carb adjustment. Plugs are always wet with oil but not black after extended trolling.
What I have done:
Cleaned rebiult carbs, linked and sync, set idle timing at 2 atdc underway, checked all jets for seating and found two high speed loose, set idle mixture screws back to 3.5 turns out (originally found two to be at 2.5 turns out, 1 at 1.5 out, and one at .75 turns out) I suspect I had one carb lean and the others maybe running rich. Compression is at 125 on all cylinders and decarb was done. I have reclamped fuel lines and check for leaks by spraying seafoam around in takes and so forth to listen for motor change.
My next course was going to be put in the water and make final idle adlustments and reset Idle timing with carb adjustments. I read somewhere that the seloc manual may be incorrect on this adjustment. With the idle screws do you in fact get leaner as you turn them in or is it the opposite because they are metering air only and not fuel. Do not want to lean this motor out and destroy it. Have not used sight tube to check oiling rate yet either but would suspect I have plenty because plugs are wet with it and I get black oily goo from prop area after trolling.
Any thoughts appreciated before I put in water again.