Throttle response of a big twin?

[velowood]

Indeed, when mine is running right it catches after the first 1/2 revolution

[DoubleCC]

Could you please tell me the procedure for adjusting the TP sensor please.

Thanks Chris

When mine was doing this, adjusting the TP sensor changed all that. It's one minute job and doesn't require any special tools. I'd try that first before buying anything.

[D-Rider]

It's detailed in the workshop manual (free download from Martin Poll's website): http://www.martinpoll.dk/div_april.htm