[TR] tuning webers

[David Brady]

I'm also running short, 12mm air horns and an electric
fuel with a pressure regulator set at 3psi and .375"
fuel lines.

David Brady
'68 TR250 CD8124L

David Brady wrote:
> Folks,
> 
> Thanks for your help. Here's what I'm running:
> 
> Three 40DCOE's,
> Idle: 65F8
> Air Corrector: 145
> Emulsion: F11
> Main: 125
> Accel Pump Jet: 40
> Aux Venturi: 45
> Choke: 30mm
> 
> The motor is reasonably high performance. A lot of
> work was done porting the intake runners and the head.
> It's dyno-ed at 170hp.
> 
> I'm far from Weber expert. I'll try to get my hands on some
> tutorial, but I don't really know where to start. It does idle
> good, so maybe we can assume that the idle jets and the
> progression circuits are good. It runs great above 3000rpm's
> so the main's are probably fine. My first inclination is accelerator
> pumps. Thanks for your help.
> 
> David Brady
> '68 TR250
> 
> 
> David Brady wrote:
>> Folks,
>>
>> I need some help setting up my triple webers on my TR250.
>> I have a stumble in the mid rpm range, 1000 rpm to 2500
>> rpm. It idles good and it runs well above 2500 rpm. I
>> think I'm idling on the idle jets and not on the progression
>> circuits. It seems to me that the problem is with the progression
>> circuits or with the accelerator pumps. I'm thinking accelerator
>> pumps. Any idea on what to try?
>>
>> Thanks,
>> David Brady
>> '68 TR250, CD8124L