What type of throttle?

[Nagoshak]

Should i use a dual cable throttle or a single cable like this.

http://www.ebay.co.uk/itm/120933218561?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648#ht_7700wt_1189

This is for use with original carbs

[LesterPiglet]

It's entirely up to you. I've never had the second cable on my bike and never had any problems.
If you use the Tomaselli you're going to need new switchgear.

[hairygit]

And a serious workout for your right wrist, had one of these on a 400/4 many years ago, and the throttle was cripplingly heavy, plus your insurance company wont like it! Plus as Lester said, you'll need to find alternative switchgear, and that's serious hassle!

[hairygit]

Fogor to add the most impotant point, it will seriously restrict the travel on the front brake lever, which is to be avoided at all costs!

[Tomb]

I have a '70's Tommaselli quick twist on my 500/4, I didn't fit it a PO did but made a reasonable job of it, he machined (sacrilige now but back then? ) the throttle twist grip part of the switch gear off and snuck the new quick twist up against the switch.

Its not as short as original but Ok, and I have dogleg levers so the brake lever clearance isn't an issue.

The throttle is heavier, I put a different throttle return spring on to help. (Much sucking of teeth   but still heavier than cable slides return springs )

[LesterPiglet]

What type of spring did you use Tom? I hate the way I need to take two swings at my throttle.

[Tomb]

Engineers stores where I worked at the time, with my spring in hand went throught the shelves of tension springs until I found one weaker, they are ordered in long lengths, and cut myself a bit off and made up a spring.

That doesn't help does it LOL, sorry

[z1100r]

The throttle in the link will be horrendous. you will soon get fed up with that.
Stiff controls make a bike horible to ride. That throttle is for a large bodied carbuettor single cylinder motorcrosser  and IMO is entirely unsuitable. (I have tried one)

[Tomb]

"TESTED WITH CABLE-WITH A 1/4 TURN SLIDE WILL LIFT 1"

Mine has about the same amount of lift per 1/4 turn so presumably the same throttle, its not too bad to use, I've had it on the bike for 28 years and don't notice it, though did when I first got the bike.