Rotax Raptor Posted August 28, 2011 Report Share Posted August 28, 2011 Ok Geniuses I need help. You know the theory about guys not wanting to ask for directions, Hell with that, I'm stumped. Here's the specs. 10mm stroke, 68mm bore, Nate McCoy topend, 41.3 lectrons with pe-1s on alcohol, metering rods at 48, single power jets 6 turns out, stock ignition with +12 timing (that's what Nate said), b9es plugs gaped at 18, squish is what Nate said it should be. This thing revs great in neutral like when you're cleaning it out, but put it in gear and take off, it bogs before you can even shift it. Stop and clean it back out, same thing. Plugs are not lean at all, maybe a little fat. Cylinder temps are around 108 both sides. Things I've tried. Leak down test, good, 2 other sets of carbs, 40s and 39s, fuel pump and gravity, timing from 7 through 12, all new electronics and wiring, ground checks, different types of plugs and gap, new reeds, checked head o rings and who knows what else. I'm at a loss and I thought I was pretty good with these things. Figure this out and I'll be buying a bunch beers for you at hq ride in waynoka. Quote Link to comment Share on other sites More sharing options...
4MiLLDraGSheE Posted August 29, 2011 Report Share Posted August 29, 2011 well a 10mm stroke just has to be your problem, lol just joking its a 64mm stroke right? Too much tire? Carbs are all clean i assume, good air filters? Being too rich can make it bog but im running really rich on alky and no problem, might get more attention if you post it in the drag forum. Quote Link to comment Share on other sites More sharing options...
BansheeBoy96 Posted August 29, 2011 Report Share Posted August 29, 2011 My Shee was doin the same thing just had to adjust the needle position..... Quote Link to comment Share on other sites More sharing options...
Rotax Raptor Posted August 29, 2011 Author Report Share Posted August 29, 2011 Yeh its a 64mm stroke. I have done all of what u have asked including adjusting the metering rod all over Hell and back. As far as tires, in my pasture with holes shots, same shit. Come on keep thinking. Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted August 29, 2011 Report Share Posted August 29, 2011 Fuel cap vent? Check carbvents for mud dauber wasp plug. Quote Link to comment Share on other sites More sharing options...
Rotax Raptor Posted August 29, 2011 Author Report Share Posted August 29, 2011 Checked that. Boy, I wish it was that easy. I've seen that happen before. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted August 29, 2011 Report Share Posted August 29, 2011 dbl check the gap on the pick up coil? Quote Link to comment Share on other sites More sharing options...
Rotax Raptor Posted August 29, 2011 Author Report Share Posted August 29, 2011 It's set at 19 thousands. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted August 29, 2011 Report Share Posted August 29, 2011 try a CDI swap? go to shout.. we'll bounce some idea's off ya. Sounds electrical to me. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted August 29, 2011 Report Share Posted August 29, 2011 Is this a new issue or something that has been going on for a while? New motor that you're trying tune? Quote Link to comment Share on other sites More sharing options...
Rotax Raptor Posted August 29, 2011 Author Report Share Posted August 29, 2011 You've got it. New motor. I've taking it to the track 3 times for test and tune and have gotten no where. When you take off its like you pull the teather out. I'm at a loss and ready for someone to fix it for me now. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted August 29, 2011 Report Share Posted August 29, 2011 Is the gas on? Quote Link to comment Share on other sites More sharing options...
Rotax Raptor Posted August 29, 2011 Author Report Share Posted August 29, 2011 Is the gas on? Alcohol Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted August 29, 2011 Report Share Posted August 29, 2011 how about when you purge.....does it seem to be running fine then also? Quote Link to comment Share on other sites More sharing options...
guns4children Posted August 29, 2011 Report Share Posted August 29, 2011 mine did the same thing. take your filters off and try to run without them. i just wasnt getting enough air. Quote Link to comment Share on other sites More sharing options...
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