Delete

Katies Grandad · Sep 14, 2019

RokitJon said: ↑

Yes, but how accurate is that?
Click to expand...

I'

RokitJon said: ↑

Yes, but how accurate is that?
Click to expand...

I've used it on the four triples I've owned and not had any trouble.

RokitJon · Sep 14, 2019

Tricky-Dicky said: ↑

The point being to get all the plates within a few thou of opening together so adjusting the main stop so you can get say a 20thou feeler (or 1/16" rod would be better) at the very bottom part of one of the plates and then using the individual plate adjusters to get the others the same ...then you can just reset/close the main adjuster down until its within spec and all should be good...its not rocket science...pardon the pun.
Click to expand...

I've balance carbs before in my former life but never used measurements, just vacuum settings.
There's no "spec" - could you explain more clearly?

OK so I'm taking my measurements at the bottom of the plate (see picture).
Right now I have .015" at the center carb. The outer carbs are virtually closed tight! (I got the bike like this).

I'll use a 1/16" drill bit to set the throttle plates at the point indicated in the picture and set all three to 1/16" and I'm done - right?

RokitJon · Sep 14, 2019

Katies Grandad said: ↑

I'

I've used it on the four triples I've owned and not had any trouble.
Click to expand...

That's good to hear - thanks Grandad!

Tricky-Dicky · Sep 14, 2019

RokitJon said: ↑

I've balance carbs before in my former life but never used measurements, just vacuum settings.
There's no "spec" - could you explain more clearly?

OK so I'm taking my measurements at the bottom of the plate (see picture).
Right now I have .015" at the center carb. The outer carbs are virtually closed tight! (I got the bike like this).

I'll use a 1/16" drill bit to set the throttle plates at the point indicated in the picture and set all three to 1/16" and I'm done - right?

View attachment 71294
Click to expand...

That's pretty much it but by spec i mean that once you have all the throttle plates with the same measurement you then reset the overall (master IE not the individual adjusters between the throttle bodies...it will be on one side of the throttle bodies) adjustment to what it would normally be IE either completely closed (if there is a separate idle air bypass) or with a small gap which would be specified in the manual.

RokitJon · Sep 14, 2019

Tricky-Dicky said: ↑

That's pretty much it but by spec i mean that once you have all the throttle plates with the same measurement you then reset the overall (master IE not the individual adjusters between the throttle bodies...it will be on one side of the throttle bodies) adjustment to what it would normally be IE either completely closed (if there is a separate idle air bypass) or with a small gap which would be specified in the manual.
Click to expand...

OK, the book shows there's no idle speed adjustment.
Idle speed should be 1,200rpm. If it's not the book says take it to the shop

Tricky-Dicky · Sep 14, 2019

OK it sounds like it has a idle air bypass ...but could have a stepper motor for idle air... in which case i would revise the adjustment back to vacuum and use the individual plate adjusters to balance once the engine is running,
But if the plates are already out of adjustment it may affect the global setting in the ECU ...i would adjust all the plates the same however depending on the
idle control type it could start with the plats completely closed or if stepper controlled they would open slightly with ignition on or start up but without knowing this i cant really help further....sounds like you need some ECU interrogation software to go much further.

RokitJon · Sep 15, 2019

Tricky-Dicky said: ↑

OK it sounds like it has a idle air bypass ...but could have a stepper motor for idle air... in which case i would revise the adjustment back to vacuum and use the individual plate adjusters to balance once the engine is running,
But if the plates are already out of adjustment it may affect the global setting in the ECU ...i would adjust all the plates the same however depending on the
idle control type it could start with the plats completely closed or if stepper controlled they would open slightly with ignition on or start up but without knowing this i cant really help further....sounds like you need some ECU interrogation software to go much further.
Click to expand...

I'll set the plates. The center plate is way off compared to the other two.
Then I'll crank it over and see if there's a stepper motor.
Thanks for your help Tricky!