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Posted

I'm going through the whole process of dialing in my shee with PT mids on it. When I first started, I was running 280 mains, 27.5 pilots and the plugs were wet and almost black after riding on them. So, I dropped the pilot down to a 25, and brought the main down to a 270 and this is what my plugs look like now...

 

yamaha-banshee-94-bikepics-271651.jpg

yamaha-banshee-94-bikepics-271652.jpg

 

I know ideally the plugs should be dry and a nice tan color, but not sure how dark of a tan it's supposed to be. I suppose my question is, do you think they look lean at all to you? I just want some reassurance from the pros on what YOU would do if your plugs looked like these.

 

Thanks! :cheers:

Posted

Don't look too bad, but look down at the base of the porcelain inside the plug and see if that ring is a nice dark chocolate color.

 

When in doubt, go richer.... :P

Posted

Thanks for the comments guys! I have another question for you...Right now I'm still running a 32:1 mix for "break in", do you think that when I go to my usual 50:1 mix that would give it the little more gas I need to richen it up a tad? Again, I really appreciate the help on this :cheers:

Posted
Thanks for the comments guys! I have another question for you...Right now I'm still running a 32:1 mix for "break in", do you think that when I go to my usual 50:1 mix that would give it the little more gas I need to richen it up a tad? Again, I really appreciate the help on this  :cheers:

304995[/snapback]

 

Technically speaking yes, but I doubt that it would be anything noticeable, I mean, maybe 1/8th of a tad.

Posted
lol, thanks Scott! I'll just slap the 280 main back in there and be done with it.... :)

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Honestly, I've still got to do some last minute jetting myself, and I've been putting it off for awhile now... lazy i guess... :confused:

Posted

You, lazy? naaaaaaaaa :P

 

My issue is that I keep waiting for some top end pull but the pipes just won't allow it. So, I keep leaning it out slowly anticipating some kind of pull but have leaned it out as far as I can without frying anything :( Don't get me wrong, these pipes hit hard as a mofo on the bottom and have a pretty good pull in the mid, I was just expecting a little top before the power cut out....I really need to just put my mains back to 280 and ride on it more. I've only ridden on them for a couple hours when my pilot was too fat and I could feel it sputter ever so slightly. I love the way they look, but haven't quite been sold on how they perform....I still have my T-5's just in case :ph34r:

Posted
You, lazy? naaaaaaaaa  :P

 

My issue is that I keep waiting for some top end pull but the pipes just won't allow it. So, I keep leaning it out slowly anticipating some kind of pull but have leaned it out as far as I can without frying anything  :(  Don't get me wrong, these pipes hit hard as a mofo on the bottom and have a pretty good pull in the mid, I was just expecting a little top before the power cut out....I really need to just put my mains back to 280 and ride on it more. I've only ridden on them for a couple hours when my pilot was too fat and I could feel it sputter ever so slightly. I love the way they look, but haven't quite been sold on how they perform....I still have my T-5's just in case  :ph34r:

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I don't know where your riding with em, but I'll say this: I wasn't too sold on em when I first started riding them. I felt the same as you did, the low mid is great but where's the top, any top. The way I see it, these pipes are great but you just can't expect the top you have with fatties, or T5's or anything like that. You almost have to ride a lilttle differently to make them work for you.

 

My first practice session at a xc course went like this. First lap, I was flying into corners reved up decent and I'd hit it around the corner, punch it and they wouldn't rev anymore, then I'd have to shift out and go. It worked my ass because I felt like I was shifting a lot, couldn't hit the timing on the gears right. I wasn't really happy with what was happening. I kept riding.

 

By the third lap, I was figuring it out. I'd fly into a corner and not downshift, basically be a gear high and going into the corner my rpms would be pretty low. I'd punch it halfway through the turn and she'd slide on around and friggin bust ass outta there. You have to ride it and shift it almost like you would a 4 stroke.

 

In the 4th lap, I had the hang of it. I could take corners much faster and let the motor lug and pull me through the turn. I'd come out of the turns faster, but I felt like I was working less. I was much less fatigued after the 4th lap then I was the 1st lap and the 4th lap was much much faster.

 

I'm currently geared 15/38, which is equivalent to 16/41. These courses are 50/50 tight woods,/high speed sections and with these pipes and gearing, this thing pulls through the woods like mad, but I still have enough gearing to really open her up in a hurry.

 

Depending on where your riding, they may or may not work for you. I could see where they'd be a lot different to ride at the dunes. For how I'm racing, these things work totally awesome, it just took a little time for me to "relearn" how to ride it. I would like to have a little more top, but I don't. I'm getting a Dyna ignition in the mail soon and I've been told that the "high" setting on that will help a llittle, but we'll see just how much.

 

Dunno if that helps or makes sense.

Later.

Posted

That makes A LOT of sense actually. I ride nothing but tight trails and climb hills.....that's it. Theroretically these pipes are perfect for the riding I do, but I think I'm gonna have to "re-learn" to ride like you said. For the past two years I've ridden trails with the T5's and have implanted the fact I need to get in the higher RPM to get her moving, and I think that's where my problem is....Right now I'm running 13/41 gearing right now (beacuse of the T5's) and think I might need to bump it up to a 14/41 or maybe even a 15/41.

 

Scott, I really appreciate your help on this...your insight has channeled my thoughts in the right direction now :D I finally feel confident my problem is not with the jetting, but with the way I'm used to riding....I've got a 14 tooth gear in the garage, I'm gonna change that and learn to shift a little sooner than I was before and see if that helps. Thanks again man! :notworthy::cheers:

Posted

I still don't have a lot of seat time on it with the new setup, so I'm still learning myself. But handlebar time, handlebar time I keep telling myself....

 

Hope it works out.

Posted

Go to at least a 15/41 and maybe try a 16/41 or 16/42 to see if it'll pull it..let it lug. Your motor will shine more and more as you ride it...You have to gear it up and let the torque pull you through at the lower rpms...the banshee is not know for the low end, so it'll take a little getting used to, but you'll love them a lot more for your type of riding...I had a 280 main, needle 5th clip, 25 pilot w/ the cover on. I cut the back of the cover and had to go to a 300 mains at 40 degrees out at sea level....your plugs looks slightly toward the lean side on the top picture, but look rich on the lower pic. I'd go w/ the 280's. This picture was after a 6th gear wot run for 5-10 seconds right??

Posted

Thanks Banchetta! Well, I wasn't able to make it to 6th but I made it to 5th...I ran out of road in the neighborhood :angry: I ran it twice to 5th gear and then shut it off and pulled those plugs. Before I made that run I cut 1.5 inches off the back of my airbox lid like yours and I think that's what made the big difference in the way the plugs look. I'm definitely gonna go up to a 280, maybe a 290 tonight and run it again. I have a 14 tooth gear in the garage, and if the local shop has a 15 tooth I'll pick it up too. I really appreciate everyone's help on this...after I change jets/gearing and pull the plugs again I'll take another pic and let you guys know what the word is....Thanks again! :cheers:

Posted

Just wanted to update...I changed out my gearing, put the 15 tooth up front and swapped the main jets back to 280. I can feel a hell of a difference now! :dance: My issue was definitely in the gearing as well as me shifting too late. With the taller gear on there it's a lot easier to tell when the powerband is fading, hence, time to shift. I really appreciate the help I've been given, it's made a night and day difference on what I think of these pipes. Now it's time to hit the trails this weekend!! :evil: Thanks again guys! :cheers:

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