Topic: RS34 Tuning and General Information

[PeWe]

Seems to be as my TMR, under side inlet side of throttle.
But these are more visible.

You have to adjust by feel.
1/8 turn make big difference on my Mikuni TMR32.

I seated all lightly. Photo of all with telephone.

Later fine tuned all after final photos when I knew that open 3/4 turn was the best setting. Compared photos and saw that one was 1/32 turn wrong despite my very careful adjustment.

Easy they could differ 1/16. Sometimes even 1/8.

I used a small screwdriver I have cut down the plastic handle on.

I have another short one for main jet.

A 3rd one for pilot jet.
They cannot be long when changing or adjustin with carbs on

Fuel screw and pilot jet screwdrivers trimmed on a bench grinder to fit the screws as good as possible.

From a kit of small screwdrivers with one bigger handle to mount. All in a small box.


My adjusted screwdrivers.
Main jet - black
Fuel screw - yellow
Pilot jet - red

[Ellz10]

Seems to be as my TMR, under side inlet side of throttle.
But these are more visible.

You have to adjust by feel.
1/8 turn make big difference on my Mikuni TMR32.

I seated all lightly. Photo of all with telephone.

Later fine tuned all after final photos when I knew that open 3/4 turn was the best setting. Compared photos and saw that one was 1/32 turn wrong despite my very careful adjustment.

Easy they could differ 1/16. Sometimes even 1/8.

I used a small screwdriver I have cut down the plastic handle on.

I have another short one for main jet.

A 3rd one for pilot jet.
They cannot be long when changing or adjustin with carbs on

Fuel screw and pilot jet screwdrivers trimmed on a bench grinder to fit the screws as good as possible.

From a kit of small screwdrivers with one bigger handle to mount. All in a small box.


My adjusted screwdrivers.
Main jet - black
Fuel screw - yellow
Pilot jet - red

Perfect, thanks Pete!

Is there a set standard for where they should be placed to start adjustments or no?

Because my air/fuel mixture is WAY off and I don't understand which way to turn the screws or what needs to be adjusted after those screws are turned, ect.

It's all very complicated and I'm trying to understand it - I want and need to understand it.

[PeWe]

See Mikes reply #14

[Ellz10]

See Mikes reply #14

Oh so he was referring to the air/fuel mixture screws when he talked about turning them starting at 1 turn out?

I didn't realize that's what he meant!

[Ellz10]

See Mikes reply #14

Oh so he was referring to the air/fuel mixture screws when he talked about turning them starting at 1 turn out?

I didn't realize that's what he meant!

Just to reiterate, I should turn those screws all the way in til they stop and then turn them out 1 full turn as a starting point?

Should all 4 screws always be turned out the same amount when making adjustments?

[PeWe]

See Mikes reply #14

Oh so he was referring to the air/fuel mixture screws when he talked about turning them starting at 1 turn out?

I didn't realize that's what he meant!

Just to reiterate, I should turn those screws all the way in til they stop and then turn them out 1 full turn as a starting point?

Should all 4 screws always be turned out the same amount when making adjustments?

Yes, all same.
My TMR32's are very sensitive in this matter.
They are located at the bottom pointing downwards.

All softly closed.

I finally took photos on all 4. Phone selfie camera. Blurry when too close but possible to see.

Adjusted to what I had found work. Photos again and saw that one carb was slightly different. Adjusted.

This was the final adjustment when everything ran fine. A kind of carb sync.

[Ellz10]

When turning these screws to make adjustments, which way equals what?

If I start them all out at one full turn, what would turning them out further do - make it run more rich or more lean?

[PeWe]

Fuel screws, more fuel when out.

[CB750R]

I’m still working on my RS34 but wanted to share that I found a flexible extended “rack” or main idle adjustment screw on eBay. I find having the rack idle screw extremely useful while still sorting out your jetting