Weston_ Posted December 24, 2020 Report Share Posted December 24, 2020 94 banshee, bored out to 392, lots of other mods, we are still working on this thing, weve bought new carbs, no air leaks, everything clean, fresh packing in pipes, no exhaust leaks, weve swaped jets over a 1000 times and still cant get that toprange power, it wants to pin out and start poping and crackling, n its not through carbs,its through exhaust. It a banshee that thing should snap your neck when u hit the gas, but weve done everythng and it just wants to pin out super quick in every gear, and start poping, its got great compression, 160, psi on 6 kicks . we think it migh be the elecricalbox, because somethings killing that top range power, i dont know a lot about electrical, and do i need to buy a sport electrical-box, i need some answers Quote Link to comment Share on other sites More sharing options...
SKEETER Posted December 24, 2020 Report Share Posted December 24, 2020 What's the trick to boring a stock cyl to 392cc? Quote Link to comment Share on other sites More sharing options...
Weston_ Posted December 24, 2020 Author Report Share Posted December 24, 2020 I can answer other questions later, where going to Sahara on new years, so i need to know what the problem is if anyone can help me out Quote Link to comment Share on other sites More sharing options...
Weston_ Posted December 24, 2020 Author Report Share Posted December 24, 2020 @BOOBS , u can by 392 big bore kits Quote Link to comment Share on other sites More sharing options...
monster Posted December 25, 2020 Report Share Posted December 25, 2020 Try swapping the ignition coil. Quote Link to comment Share on other sites More sharing options...
Weston_ Posted December 25, 2020 Author Report Share Posted December 25, 2020 What do think about the CVI box, this things super hoped up so what about a aftermarket CVI box, could that be why its not wanting to give that full power and why its killing the power on the engine. Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted December 25, 2020 Report Share Posted December 25, 2020 probably Spark plug caps, maybe reeds. Swap a known good CDI to test, don't waste money on a A/M CDI. Are your new carbs Chinese by chance? Quote Link to comment Share on other sites More sharing options...
monster Posted December 25, 2020 Report Share Posted December 25, 2020 Sorry I didn’t explain why the coil is where I’d start . Had my sons banshee runs great until high rpm sputters missing poping like bad jetting. After half a day of tinkering. Swap good coil from other banshee runs great. The coil was breaking down under high rpm and load. It’s just 2 10mm bolts and a plug. I have a 10 mil serval and I’m running all OEM ignition. Have a Merry Christmas Quote Link to comment Share on other sites More sharing options...
Weston_ Posted December 25, 2020 Author Report Share Posted December 25, 2020 What brand coil should i look for ? Quote Link to comment Share on other sites More sharing options...
monster Posted December 25, 2020 Report Share Posted December 25, 2020 Yamaha or get a used one. Swap one from a friend to diagnose. Quote Link to comment Share on other sites More sharing options...
SKEETER Posted December 25, 2020 Report Share Posted December 25, 2020 Super hopped up . LOL'Z Quote Link to comment Share on other sites More sharing options...
Weston_ Posted December 25, 2020 Author Report Share Posted December 25, 2020 They have lots of brands, thats what im asking i dont want a little cheapy Quote Link to comment Share on other sites More sharing options...
ATV_hub Posted December 26, 2020 Report Share Posted December 26, 2020 Don’t go out and buy a new coil just yet, test your electronics first, the coil may not be the issue Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted December 26, 2020 Report Share Posted December 26, 2020 I have found several times that if a Banshee starts and idles fine, but runs like shit at WOT, the CDI is bad. I've had this happen several times. Quote Link to comment Share on other sites More sharing options...
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