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Austin 3:16

Banshee Driving me nuts!!

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Okay I just rebuilt my engine New crank,New pistons etc. Installed Vforce 4 reeds and timing +4 it also has fmf gold series which where on it before rebuild. Is idling fine and runs fine until it get to a certain spot and just won’t go any faster  it’s no where near as fast as it was. I’ve tried making less and more rich with no change,Gave it more and less air and still no change. Carbs are so clean you could eat off them. I’m at a loss onto what to try. Could I need to rejet my carb because of the reeds or is it something else. Any help is greatly appreciated. Thanks 

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27 minutes ago, n2otoofast4u said:

What carbs, what jets?

Stock carbs, 280 Mains,25 pilot. Will add it’s hard to start cold 

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18 minutes ago, hoppedupandcutdown said:

Slides in the correct carbs? Bowls on the correct carbs?

Slides don’t have a certain carb they mate with do they? I’m for certain I have them in right in that carb their in thought it only matters if their in right in the carbs. 

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34 minutes ago, hoppedupandcutdown said:

Slides in the correct carbs? Bowls on the correct carbs?

I have the bbs or whatever their called lined up for both sight classes and the notches for each idler screw 

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1 hour ago, Austin 3:16 said:

I have the bbs or whatever their called lined up for both sight classes and the notches for each idler screw 

Slides are correct then.

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7 minutes ago, gusto said:

Put in a 30 pilot, adjust air screw and report back

Mains and pilots where my next step. Checked the ignition coil and ohm was .9 which I way over the .2-.4 range so possibly is some of my problem also 

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Ok

read this,

 

and next

read this again

 

After you understand this buy 260-320 mains (if you have the jets great) 27.5-32.5 pilots

Get a longer aftermarket needle set (i like the toomey needles)

I have a similar set up to yours, My bike likes 280 main 27.5 pilot with the needle 2 slots from the tip.

 

Buy 10 sets of plugs. change jets to your "baseline" and do a plug chop. post pictures of the resulting plug for review (and the inevitable peanut gallery comments)

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5 minutes ago, Toybreaker said:

Ok

read this,

 

and next

read this again

 

After you understand this buy 260-320 mains (if you have the jets great) 27.5-32.5 pilots

Get a longer aftermarket needle set (i like the toomey needles)

I have a similar set up to yours, My bike likes 280 main 27.5 pilot with the needle 2 slots from the tip.

 

Buy 10 sets of plugs. change jets to your "baseline" and do a plug chop. post pictures of the resulting plug for review (and the inevitable peanut gallery comments)

Okay thanks for the info will let ya know what happens 

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7 minutes ago, Toybreaker said:

Ok

read this,

 

and next

read this again

 

After you understand this buy 260-320 mains (if you have the jets great) 27.5-32.5 pilots

Get a longer aftermarket needle set (i like the toomey needles)

I have a similar set up to yours, My bike likes 280 main 27.5 pilot with the needle 2 slots from the tip.

 

Buy 10 sets of plugs. change jets to your "baseline" and do a plug chop. post pictures of the resulting plug for review (and the inevitable peanut gallery comments)

Beat place to order the pilots?

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Lots of options, use one of the sponsored vendors on the website here.

 

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On 5/18/2020 at 8:08 AM, Toybreaker said:

Lots of options, use one of the sponsored vendors on the website here.

 

Still doing it and also changed coil and moved timing back down 

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