4-5k stutter

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Eibar
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Main scooter: Eibar TS1 1966
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4-5k stutter

Postby Eibar » Fri Apr 21, 2017 8:19 am

So jetting as useable as it can be . 4-5k stutter is quite severe. Ts1 124 t/f 185 exhaust- different pipes dont make a difference. No air leaks. I can jet out the stutter but makes motor to lean once power comes on the pipe.Any ideas ??Reeds Issue??
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storkfoot
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Main scooter: '70 GP150 [TS1 225]
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Re: 4-5k stutter

Postby storkfoot » Fri Apr 21, 2017 8:49 am

A flat spot in that range is common on a TS1( how pronounced is the ""stutter"?).

I'd just lived with a flat spot at 4200 for years but last year fitted a Kytronic. I have that set on a curve which lost a little bit of power top end but got rid of the flat spot. If you go that route, you need to re- jet your carb.
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Eibar
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ebay user ID: polini130
Main scooter: Eibar TS1 1966
Location: Liverpool
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Re: 4-5k stutter

Postby Eibar » Fri Apr 21, 2017 9:08 am

Augusto 6000 fitted 22-16 , problem exists with and without retard wired in.
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roadrunnerian
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Re: 4-5k stutter

Postby roadrunnerian » Fri Apr 21, 2017 12:37 pm

I HAVE A TS1 AND HAD IT ON DARRELLS DYNO AND WE MANAGED TO SMOOTH IT BY GOING LARGE JET AND LEANER NEEDLE FROM 220 MAIN JET TO 240 AND NEEDLE FROM 56 SECOND NOTCH TO 57 SAME NOTCH THIS IS ON A 230 TUNED BY CHRIS STURGESS/DARRELL TAYLOR HOPE THIS HELPS :)
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roadrunnerian
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Re: 4-5k stutter

Postby roadrunnerian » Fri Apr 21, 2017 6:39 pm

afraid old age has hit me it should be 320mj too 340mj sorry doh :lol:
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