252wheelieking Posted December 9, 2011 Report Share Posted December 9, 2011 I just rebuilt my motor & my set-up is in my sig. I did leakdown test & it loss 1 psi in 6 mins. I found that it was leaking around the intake boot where there tester was installed. I seal that leak & tested it again & it still loss 1 psi. in 6 mins. I sprayed soap bubbles all over the engine & couldn't find the leak. I didn't check the crank seals as I had already put the stator & Clutch on. I clean carbs, installed 165 mains & 1.5 turns out on air/fuel screw to start the bike with. It was idle hanging at idle & had poor off idle throttle response. I pull the choke up on left carb & it clears up idle & throttle response is perfect. My current jetting was 52 pilots CEG needle mid clip position 158 mains dailed in for 80+ degrees & ran like a champ. The weather now is ranging from 45*- 65*. Do I need to go bigger(55 pilots) on the pilot jet or is that loss of 1 psi. causing it to run lean/hang idle.? I rode the bike hard a few time up & down the road & after it got pretty warm it didnt hang idle no more until I let it cool off & start it again. I didnt check plugs because I was told the plug reading only comes from the main jet. Thanks in advance for any help provide. Reek Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted December 9, 2011 Report Share Posted December 9, 2011 1 psi leak is acceptable Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted December 9, 2011 Report Share Posted December 9, 2011 That's the thing with jetting, can't do it from behind a key board. Try the next sieze larger pilot and see how it works. Might also think of upping main with the temp change. Quote Link to comment Share on other sites More sharing options...
252wheelieking Posted December 9, 2011 Author Report Share Posted December 9, 2011 That's the thing with jetting, can't do it from behind a key board. Try the next sieze larger pilot and see how it works. Might also think of upping main with the temp change. I did up the mains to 165. It was a 158 in there for 80*+. I have some 55 pilots around here somewhere I am going to try them. Quote Link to comment Share on other sites More sharing options...
252wheelieking Posted December 9, 2011 Author Report Share Posted December 9, 2011 (edited) 1 psi leak is acceptable Thanks but I want it to hold 6psi for 6 mins or longer. That would make me feel alot better & make it easier to jet I assume. Knowing that it will lose 1 psi in 6mins. is like saying it has a little lean condition but its ok. Then I would have to keep an eye on the leak to make sure it doesn't get worse. I rather fix it now than a bigger headache later. I think I'm going to remove stator & clutch basket & do another leakdown test to see if it's leaking from one of the crank seals. Just for peace of mind. Edited December 9, 2011 by 252wheelieking Quote Link to comment Share on other sites More sharing options...
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