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T5 bike jetting question


01 B4C

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I just installed T5s on my 02 Banshee. Boy these pipes kick ass! Here is my set-up: T5s, K&N, stock lid no snorkel, stock carbs, 27.5 pilot, 280 mains, clip in the middle. I'm at sea level.

 

My question is the bike is a little flat (or fat?) in the middle of the power band right before it gets up on the pipe. Once it

Edited by 01 B4C
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Thats what my 87 does with toomey t-3. Light switch power. Dude, I was using  280 mj with the lid on, took the lid off for a pro flow, and had to use  320 mj and had alot more top end power.

407086[/snapback]

 

Yes, my top end power is good. I just want to clear up the transition power in the middle. It

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If your running Toomey needles thats your problem.. There is a flat spot on them. Once you install the V force reeds you wont even notice it, and I didnt have to rejet after installing mine but I did do several plug checks :confused:

 

Yes, my top end power is good. I just want to clear up the transition power in the middle. It
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If your running Toomey needles thats your problem.. There is a flat spot on them. Once you install the V force reeds you wont even notice it, and I didnt have to rejet after installing mine but I did do several plug checks :confused:

407172[/snapback]

 

I'm still running the stock needles on the 3rd spot. What needles are you running and in what location?

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Try this setup:

 

300 main jet

32.5 pilot jet

Needle at the 4th clip

Turn your air screws 1 1/2 turns out from fully turned in

And remove your airbox lid for more airflow

 

Try this setup and let me know how it works out for you

 

:cheers:

407236[/snapback]

 

Hey thanks :D

What

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32.5 pilots if he plans on running alcohol...maybe.

 

Without an airbox I run 27.5 with the screws about 2.25 turns out. Max is supposed to be 2.5...before you go the next size DOWN (25)

 

You are too rich off the bottom already. Want proof? Pull your choke out halfway...it'll get even worse. If it's lean..which it isn't, you'll make it better.

 

Put the stock pilots back in if you plan on running your airbox, with the air screws between 1 and 2 turns out. Remember to adjust them 1/4 turn at a time, with the engine warm...and allowing it to run for 20 to 30 seconds for the air screw adjusment to "set".

 

The T5's a a little peaky. Not nearly as much as a drag...but more so than most pipes.

 

I love mine...but, to be honest...my timing plate set at +4 degrees and lightened flywheel made a big difference. It still pulls..but, the hit is toned down just a bit. Considering you can get these mods both for under 100 to 110 bucks...do it.

 

When you put the VForce reeds in, if your using the stock needles, move the clip one notch to the blunt end (leans it out).

 

Actually...fix your pilot and air screw...ride it. Then...get your reeds...ride it. If it feels a bit sluggish in the mid, then adjust the clip on the needle.

 

I have the Toomey/Dynojet needles...and in the 4th clip (they have 6 grooves as opposed to 5 stock) and I can't tell the difference between them and the stock...so, I just left 'em in.

 

Good luck...

 

:headbang::cheers:

 

Oh...and at sea level, with an air box and normal summer temps (70 to 90 degrees) you'll end up with a 270 to 300 Main, somewheres in there.

Edited by dajogejr
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32.5 pilots if he plans on running alcohol...maybe.

Without an airbox I run 27.5 with the screws about 2.25 turns out.  Max is supposed to be 2.5...before you go the next size DOWN (25)

You are too rich off the bottom already.  Want proof?  Pull your choke out halfway...it'll get even worse. If it's lean..which it isn't, you'll make it better.

Put the stock pilots back in if you plan on running your airbox, with the air screws between 1 and 2 turns out.  Remember to adjust them 1/4 turn at a time, with the engine warm...and allowing it to run for 20 to 30 seconds for the air screw adjusment to "set".

The T5's a a little peaky.  Not nearly as much as a drag...but more so than most pipes.

I love mine...but, to be honest...my timing plate set at +4 degrees and lightened flywheel made a big difference.  It still pulls..but, the hit is toned down just a bit.  Considering you can get these mods both for under 100 to 110 bucks...do it.

When you put the VForce reeds in, if your using the stock needles, move the clip one notch to the blunt end (leans it out).

Actually...fix your pilot and air screw...ride it. Then...get your reeds...ride it.  If it feels a bit sluggish in the mid, then adjust the clip on the needle.

I have the Toomey/Dynojet needles...and in the 4th clip (they have 6 grooves as opposed to 5 stock) and I can't tell the difference between them and the stock...so, I just left 'em in.

 

Good luck...

 

:headbang:  :cheers:

 

Oh...and at sea level, with an air box and normal summer temps (70 to 90 degrees) you'll end up with a 270 to 300 Main, somewheres in there.

407410[/snapback]

 

Wow, thanks for the detailed information! I will get on it this weekend and try it out. When I turn the air screws out that's leaner, right?

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I have t5's, v-force reeds, no air box, and mine is jetted with 340 mains, dont know about the pilot, was this way when i bought it, but it runs great from mid to top end, so you might try 340s

407595[/snapback]

 

He is using the airbox, with lid...no snorkel.

 

I'd say anything over 300 is going to be rich...period...

 

:cheers:

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