tithead Posted December 8, 2003 Report Share Posted December 8, 2003 iv just had a thot, if the plugs spark all the time then the bike will be loosing power because the new fuel with ignite early when the piston is only half way up the barrel. does that make sence Quote Link to comment Share on other sites More sharing options...
boonman Posted December 8, 2003 Report Share Posted December 8, 2003 No timing, no distributor, none of that made a difference when Yamaha engineers made their decision. They could have programmed whatevrr they wanted for timing into the CDI. The deciding factor here is cost. Simplicity and cost effectiveness were the ultimate factors in the single coil system that the banshee uses. When one cylinder is at TDC, the other is at BDC. When the cylinder that is up fires, the cylinder that is down gets a useless spark. There are 2 timing marks on the flywheel. It is cheaper and cost effective to run one coil, and have the cylinder at BDC spark a useless spark than to have a two coil, two pickup setup on the bike. You could eliminate the useless spark with a custom ignition-(CDI) and another pickup coil that is 180 degrees from the original. You would also need another coil, along with a single timing "mark" on the flywheel. But, the system works fine, unlike some other Yamaha systems, (TORS) lol. Anyways, that's the jist of it. Quote Link to comment Share on other sites More sharing options...
Screamin_Banshee Posted December 8, 2003 Report Share Posted December 8, 2003 All mighty Boon, always has the answers MSD makes a dual coil kit, but I dont think it uses the stock flywheel...atleast not the ones I have seen. Anyone got nemore info on those? Quote Link to comment Share on other sites More sharing options...
thecabinboy Posted December 8, 2003 Report Share Posted December 8, 2003 lol, what he said, just make sure you grab onto both sparkplugs tightly in both hands when you kick it over. OW!!! Quote Link to comment Share on other sites More sharing options...
2004LEBanshee Posted December 9, 2003 Report Share Posted December 9, 2003 thecabinboy If the double spark is true then your animation is wrong. Quote Link to comment Share on other sites More sharing options...
NYUK Posted December 9, 2003 Report Share Posted December 9, 2003 thats an air cooled single doy!!!! Quote Link to comment Share on other sites More sharing options...
Cotton eyed Joe Posted December 9, 2003 Report Share Posted December 9, 2003 thecabinboy If the double spark is true then your animation is wrong. Like NYUK said, but also notice its CASE INDUCTED which is kinda cool I think, and it appears to have the jugs on "backwards" from the typical engine, except for the now dead Cannondale, but it was a 4 stroke, so it doesn't even matter really. Personally I think case inducted, with the exhaust shooting towards the rear rather than a ram horn type of exhaust, would prove to be more efficient. The only problem with the carbs on the case is they are inches from the ground, rocks, sand ect, and if you just turned the jugs around they carbs would be into your radiator. Just thought I'd elaborate. Quote Link to comment Share on other sites More sharing options...
boonman Posted December 9, 2003 Report Share Posted December 9, 2003 and it appears to have the jugs on "backwards" from the typical engine Not so. Actually, if the jugs were on backwards, the exhaust would come out the same side as the carbs. Which, may be something to try. Personally I think case inducted, with the exhaust shooting towards the rear rather than a ram horn type of exhaust, would prove to be more efficient. The only problem with the carbs on the case is they are inches from the ground, rocks, sand ect How about a Crankenstein?????? Carbs in the front, exhaust straight out the rear. Kind of like Jethro's mullet. Business in the front, and pleasure in the rear? Reminds me of that anal post in Roostin' room. Maybe jethro can get "in" on that? Anyways, it would seem thoughtful that a straight exhaust would be better and more efficient. This would be a question for Sainty. Except, he doesn't post here anymore unfortunately. Case induction rocks!!!! Rotax rotary valved, case inducted banshee tranny mounted fire breathing nitro powered monster!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
brock_fuzzy_69 Posted December 9, 2003 Report Share Posted December 9, 2003 cabinboy taht avitar pic kicks ass special ed is the man that show so kicks ass i peed in your pool Quote Link to comment Share on other sites More sharing options...
thecabinboy Posted December 9, 2003 Report Share Posted December 9, 2003 Thanks Man!!! Sorry to all those who will complain this post is a waste of bandwidth. Quote Link to comment Share on other sites More sharing options...
BdBanshee Posted December 10, 2003 Report Share Posted December 10, 2003 How about a Crankenstein?????? Carbs in the front, exhaust straight out the rear. I saw a Crankenstein motor at Little Sahara many years ago that was setup that way. It was a snowmobile topend grafted onto a Banshee tranny. It was fast! Quote Link to comment Share on other sites More sharing options...
Cotton eyed Joe Posted December 10, 2003 Report Share Posted December 10, 2003 How about a Crankenstein?????? Carbs in the front, exhaust straight out the rear. I saw a Crankenstein motor at Little Sahara many years ago that was setup that way. It was a snowmobile topend grafted onto a Banshee tranny. It was fast! THOSE ARE SICK!!!! If you have the $$$ to buy one of those I don't think you're gonna care if your pods are inches from the sand. Quote Link to comment Share on other sites More sharing options...
boonman Posted December 10, 2003 Report Share Posted December 10, 2003 I doubt I could ever afford one, but i would sure like to build one....... Quote Link to comment Share on other sites More sharing options...
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