If the plugs are dry--you need to work on fuel delivery. If they are wet-wet it will pretty much never start. Take the plugs out, crank a few hundred times and start with fresh plugs. A little shot of carb cleaner does a good job of drying them quickly--let it dry though. You will need to let the case dry out. I have been in this unfortunate scenario before.
You are getting spark. That is good. It is tough to be too far off on timing with this engine. These are the moments that electric start becomes oh-so-good. jim ----- Original Message ---- From: Kenneth Kirkland <[EMAIL PROTECTED]> To: [email protected] Sent: Sunday, February 18, 2007 11:29:13 PM Subject: RE: [F500] Re-firing rebuilt 494 Guys, Thanks for the ideas. The plugs are new, I'll have to check if they are wet when I try it tomorrow. I have attempted starts with choke on and off. Removed the air filters for a few attempts to eliminate clogged filters as the culprit (in case I got carried away with the K&N oil). I let a pro do the rebuild (smart move-the reinstall and refire is challenging enough). Tomorrow's to do list: set idle speed to factory spec. Attempt start. Check for wet plugs. Squirt pre-mix past carb slides. Attempt start. Thanks again, Kenneth --- Phil Green <[EMAIL PROTECTED]> wrote: > After this, are your plugs wet? Are they fouled? > Are they new? Is > your primer (choke) on or off? Where is your idle > adjust screw at? > > Put some fuel in a little squirt bottle of some sort > and give a squirt > in each carb with the throttle open so it goes in. > Give it a few yanks. > If the plugs were dry before, it should have some > kick at this point. > You could also remove the plugs and give a squirt of > fuel in each > cylinder. > > Good luck! Let us know > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > On Behalf Of > Kenneth Kirkland > Sent: Sunday, February 18, 2007 7:49 PM > To: [email protected] > Subject: [F500] Re-firing rebuilt 494 > > > Hello all! > > I'd like to bounce a situation off the list as I > attempt to start my rebuilt 494 that I've bolted > back > into my KBS. > > The situation: > -140 psi compression on both cylinders > -spark at both plugs > -40:1 premix in a spare tank that is getting pumped > to > the carbs > -idle air mix screws set per the SkiDoo manual (seat > screw and then back out 1.5 turns) > > I'm assuming proper timing on the rotary valve and > the > magneto firing. > > The engine has refused to fire after 300 pulls on > the > starter cord (it's a total body workout!). It feels > like some combustion is helping on some of the > pulls, > but it's not firing or attempting to catch and run. > > Are there other things that I need to check or do? > > Thanks for any and all assistance, > Kenneth Kirkland > #18MiDiv / Arkansas Region(77) > 1991 KBS Mk. V > www.kirklandracing.com > ________________________________ > FormulaCar Magazine - A Proud Supporter of Formula > 500 > The Official Publication of Junior Formula Car > Racing > Subscribe Today! www.formulacarmag.com or > 519-624-2003 > _________________________________ _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! *** ________________________________ FormulaCar Magazine - A Proud Supporter of Formula 500 The Official Publication of Junior Formula Car Racing Subscribe Today! www.formulacarmag.com or 519-624-2003 _________________________________ _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! ***
