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Author Topic: Carb adjustment - sort of...  (Read 2153 times)

Offline montmil

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Re: Carb adjustment - sort of...
« Reply #15 on: August 11, 2013, 02:25:57 PM »
Quote
...That said balancing at 3500 RPM under no load conditions is not the same as riding at 3500 RPM as the throttle openings will be different.

True to a point. Different load conditions. However, the throttle openings should remain the same on each carb. Different, but the same.
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Fraggle

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Re: Carb adjustment - sort of...
« Reply #16 on: August 14, 2013, 04:50:04 AM »
I've just had a bit of a senior moment, but thought it would be worth mentioning...

Cable Free Play: Bear in mind that you can't really measure this by wiggling the twist grip. There is slack in the twist grip mechanism that has no effect on play in the cables.

Being a bit of a knob and not thinking things through properly, I took out the free play at the twist grip with the throttle cable adjusters. This actually takes the slack out of the chain thingy in the twist grip and has pulled all of the free play out of the cables and then some!

Now my carbs are truly screwed!

Offline montmil

  • Mt. Olympus Resident
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Re: Carb adjustment - sort of...
« Reply #17 on: August 14, 2013, 07:53:23 AM »
Quote
I've just had a bit of a senior moment, but thought it would be worth mentioning...

Cable Free Play: Bear in mind that you can't really measure this by wiggling the twist grip. There is slack in the twist grip mechanism that has no effect on play in the cables.

Being a bit of a knob and not thinking things through properly, I took out the free play at the twist grip with the throttle cable adjusters. This actually takes the slack out of the chain thingy in the twist grip and has pulled all of the free play out of the cables and then some!

Now my carbs are truly screwed!

Bless your noobie heart. ::)

There should be a wee bit o' slack at the Bing throttle cable adjust screws when the throttle cable system is "at rest". Just enough to be able to lift the cable off the bottom of the adjuster ferrule.

For now, try backing off the adjusters to get some slack. See whatcha get. Then...

Go back and re-read that pdf I sent you. Read it all the way through and take your time to absorb all the little bits where you might stub your toe. A cold beer will be helpful, too.

Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet