Need Help TBs Sync

[vanness]

I just built a manometer to synchronize the TBs, so I am wondering what temperature I should use. Is the range between 75°C and 85°C? I am having trouble getting the fluid to align evenly.

 

[grahammarsden]

I'm sorry, I don't understand what you're asking.

Why should the temperature make a difference?

 

[TownsendsFJR1300]

The engine should be up to operating temp.

I'd put a strong fan in front of the radiator to keep temps in check.

.

 

[vanness]

I'm sorry, I don't understand what you're asking.

Why should the temperature make a difference?

Sorry for not making my question clear enough, I noticed that after I sync them and let the bike run a bit hotter (say 95c just to see what will happen) it will eventually drift out of sync. The question is that are they supposed to be in sync for all across the temperatures or just at around 85c.

 

[vanness]

The engine should be up to operating temp.

I'd put a strong fan in front of the radiator to keep temps in check.

.

I live in a rather hot climate, I tried putting a fan in front of it but it still pass 90c, what I did is I just let the bike cool down a bit then continue syncing them. I read your post on syncing them at 4K RPM, did you get someone to hold the throttle steady or you just blip it?

 

[TownsendsFJR1300]

I live in a rather hot climate, I tried putting a fan in front of it but it still pass 90c, what I did is I just let the bike cool down a bit then continue syncing them. I read your post on syncing them at 4K RPM, did you get someone to hold the throttle steady or you just blip it?

You should be able to do the "idle sync" fairly quickly, W/O super high temps.
Even so, the bikes fan should kick on. Letting it cool down, is fine.

Re 4K, I just held the throttle and adjusted the throttle body that was out.
If it's close at idle, it won't take long to bring the one or two TB's way out,

I'm right handed, so with the handle bars turned fully to the right, myself on the left side of the bike,
I hold the throttle with my left hand, tiny screw driver on the TB adjuster making VERY SLIGHT adjustments.
Sync tool hanging off the left hand grip.

.

 

[vanness]

You should be able to do the "idle sync" fairly quickly, W/O super high temps.
Even so, the bikes fan should kick on. Letting it cool down, is fine.

Re 4K, I just held the throttle and adjusted the throttle body that was out.
If it's close at idle, it won't take long to bring the one or two TB's way out,

I'm right handed, so with the handle bars turned fully to the right, myself on the left side of the bike,
I hold the throttle with my left hand, tiny screw driver on the TB adjuster making VERY SLIGHT adjustments.
Sync tool hanging off the left hand grip.

.

I will try again, the bike came with aftermarket exhaust which is too loud if I hold it at 4K (trying to respect the neighbors) currently it sounds stable at 85c (or whatever temp i synced them at), cold start sounds choppy (not stalling, just choppy) up until 75c-85c and will sound choppy again if I let it go to 95c+

The handlebar also vibrates left and right intermittently, making my hands go numb. I suspected that it’s the wheel or tire but when I shifted to neutral and shut the bike off (while rolling) the vibration went away.