verlicchi throttle assembly

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garryc
Parallel Twin
Posts: 129
Joined: Wed Dec 26, 2007 4:53 pm
Location: Forster NSW Aust

verlicchi throttle assembly

Post by garryc »

I am looking at replacing a tomassella throttle with a verlicchi. Ian falloon tells me I may have to change the ramps to suit my 40mm carbs. I don't understand what that means. can anyone help?
thanks
garry

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Craig in France
Cagiva Gran Canyon
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Joined: Tue Mar 23, 2004 3:58 pm
Location: Montpellier, France

Reply to 'What's a ramp?'

Post by Craig in France »

Hi Gary,

The only use of 'ramp' that I can think of is the ramp on the air slides, i.e. the cut-away that determines when the accelerator pumps come into action ...

But why you might need to change these just 'cos of changing the twist grip escapes me. Are you sure Ian isn't talking of changing to 40mm carbs? Just a thought ...

Ciao

Craig

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DesmoDog
750 GT
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Location: Dexter, MI USA
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Post by DesmoDog »

He's probably referring to the surface in the throttle itself that the cables wrap around when the grip is turned. You can change the response of the throttle by changing the shape of that surface. A smaller radius means you have to move the throttle more for a given lift at the slides. Too big of a radius to start out with and the throttle could become hard to modulate at low settings.

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Craig in France
Cagiva Gran Canyon
Posts: 882
Joined: Tue Mar 23, 2004 3:58 pm
Location: Montpellier, France

What's a ramp?

Post by Craig in France »

DesmoDog wrote:He's probably referring to the surface in the throttle itself that the cables wrap around when the grip is turned.
Hi Craig,

Yeh, that's sounds more likely than my confused attempt at an explanation!

Ta!

'tother Craig

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