digger Posted February 23, 2006 Report Share Posted February 23, 2006 I'v tried 280, 300, and 320 mains and the thing will still not rev on top end, air filter is brand new, not dirty. the plugs look like they are burning perfect with the 280 any other sugestions... i just got beat by my buddies almost stock 450R and i cant have that!! and its not the rider cause we traded bikes then i beat him. Please help!! toomey tr6 toomey 2:1 uni filter 4* timing key boost bottle boyesen reeds Quote Link to comment Share on other sites More sharing options...
BansheeGuy_IV Posted February 24, 2006 Report Share Posted February 24, 2006 Yanno... With a similar setup back in the day... I ran 260 mains. You might want to try going a little leaner, since going richer hasn't helped. BG Quote Link to comment Share on other sites More sharing options...
wesw Posted February 24, 2006 Report Share Posted February 24, 2006 did you raise the needle up also. Quote Link to comment Share on other sites More sharing options...
Old Two-Smoke Posted February 24, 2006 Report Share Posted February 24, 2006 Have you checked to make sure your key is in the proper position so your not running -4 If your plugs are the right color I would check your timing Quote Link to comment Share on other sites More sharing options...
FIRST BANSHEE Posted February 24, 2006 Report Share Posted February 24, 2006 Iwas going to say the same thing. make sure you put the key in right. Quote Link to comment Share on other sites More sharing options...
superdave Posted February 24, 2006 Report Share Posted February 24, 2006 Tell us more about the elevation and temps.....also did you put new needles in and also adjust the air mixture....?...Is it running good everywhere, but not on top....? just a few more questions...D and yes check the timing key.. Quote Link to comment Share on other sites More sharing options...
2003LimitedBanshee Posted February 24, 2006 Report Share Posted February 24, 2006 (edited) Definitely a lot of what they said. Check that key for sure (upgrade to a Ricky Stator adjustable plate next just my $.02). However, I would not recommend going smaller unless you like welded pistons, or if you're at high elevations or very hot. I am running T5's with the Toomey (UNI) 2:1 filter setup, and I run 340's, stock pilot with .5 turn on the air screws and 4th clip on the Toomey (Dynojet) needle. This is my setup when I ride the dunes at sea level approx 55-60 degrees. If your plugs have a nice chocolate milk brown color then I guess you can't argue with that, but I would guess you should be significantly higher on the main, unless elevation or temp differences come into play. Even at elevation I would guess you should be at least 300 on the main. That filter system draws much more air than the stock box could ever dream of. If the bike simply acts as though it doesn't want to rev you could definitely be looking at a timing issue, but this can be a sign of a lean condition also (think about how your bike acts if you've run out of gas). Generally if people are too big on the main they will describe it as not wanting to "clean out", but if they're small its as though the bike won't build RPM. edit: With those pipes/filter and the timing to boot, you should be giving that 450r all it can handle, and most likely wiping him up. What does "basically" stock mean? Both the Honda and Yamaha 450's are real quick out of the box. Don't want to start a pissing match, but, IMO it takes a piped/filtered and probably timing advanced Banshee to run competively with those damn 450's piped. Edited February 24, 2006 by 2003LimitedBanshee Quote Link to comment Share on other sites More sharing options...
sredish Posted February 24, 2006 Report Share Posted February 24, 2006 sell em.... Quote Link to comment Share on other sites More sharing options...
banshdog Posted February 24, 2006 Report Share Posted February 24, 2006 have you checked your compression????? Quote Link to comment Share on other sites More sharing options...
banshee tuner Posted February 24, 2006 Report Share Posted February 24, 2006 Need more details, your slides could be in backwards. Quote Link to comment Share on other sites More sharing options...
Justintoxicated Posted February 24, 2006 Report Share Posted February 24, 2006 it is very likely you will get beat by 450's with only pipes and filter... Quote Link to comment Share on other sites More sharing options...
greg_banshee Posted February 24, 2006 Report Share Posted February 24, 2006 Sell Em & get some Pro Circuits Quote Link to comment Share on other sites More sharing options...
CadillacBanshee Posted February 25, 2006 Report Share Posted February 25, 2006 Dirt or Sand? Whats your gearing? What color is your powerband? Quote Link to comment Share on other sites More sharing options...
FASTOYS Posted February 25, 2006 Report Share Posted February 25, 2006 If its on dirt it could be cause the 450r is planting the power to the ground better and the Banshee is spinning. Maybe you need a gear change!? Porting is what will probably be needed to take care of those pesky 450Rs as they run real good. Quote Link to comment Share on other sites More sharing options...
banshee tuner Posted February 25, 2006 Report Share Posted February 25, 2006 We need details on where it is running bad, take off , mid , topend or just not fast enough. Quote Link to comment Share on other sites More sharing options...
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