Top end noise \ weird idle?

[Guest]

Hi everyone,

Below is the link to a video i posted. The bike has been warmed up and am wondering is the idle \ top end noise is normal.
I know the carbs need to be synched and the shims need to be replaced on the intake and exhaust for Cyl 1 and intake on Cyl 4.
Cheers

https://youtu.be/dzuLJ9vVIIc

[Steve]

Sounds somewhat normal.

Change your shims BEFORE doing the carb sync.

Why is your "choke" lever mounted there?

.

[Rahmanberrada]

Sounds somewhat normal.

Change your shims BEFORE doing the carb sync.

Why is your "choke" lever mounted there?

.

The choke is mounted there because the bike went down before and they had to change to aftermarket controls on the left side but kept the original controls next to them. I removed them and remounted the choke at the spot you can see.
Also, in regards to the shims and carb synch. I am also planning on doing a color tune on the engine.
Which order should all 3 be done in?

[Brendan W]

Sounds normal to me as well. Is that the clutch cable running by the #1 spark plug lead, 0:52 onwards.
Check that out in the service manual. Generally they run past the coil and down between 1 & 2 carburettors.

http://zeus.mtsac.edu/~cliff/storage/gs/GS650GManual.pdf

Section 9-12 servicing information

[tom203]

What a pretty bike! Sounds normal....but yes, the clutch cable needs to be between carb 1 and 2. Hopefully it has enough reach....otherwise get new oem cable.

[Rahmanberrada]

I see what you mean regarding the clutch cable. Would that make any difference at all or is it just esthetics?
also, as per the question i asked before, in which order should the following 3 things be done?
- Carb synch
- Color tune
- Shim change

[Big T]

Shim change
Carb synch
Color tune

In that order

[Brendan W]

I see what you mean regarding the clutch cable. Would that make any difference at all or is it just esthetics?

Aesthetics would be enough for some.
I can think of four reasons not to leave it there.
Laying on something hot.
Touching HT lead.
Wire loop on side of a bike will eventually snag something at the worst possible moment.
Something the builders knew but I'm not smart enough to figure out yet.

[Rahmanberrada]

Thats fair,

I was looking at doing some work this weekend including moving the wire but i came down with a fever and spent the weekend in bed sweating lol.
Next Monday and tuesday (my weekend), i'll take care of all this and hopefully post pictures of the process.
Will hopefully et accomplished:
- valve adjustment / shim replacement
- carb synch
- color tune
- re-route clutch cable.

Also, if I am looking at replacing the controls, does anyone have any ideas or good controls to switch to? and while we are on this subject, it seems like the clutch cable is a bit tight to pull, is that normal on these bikes?

[scratch]

Your bike is gorgeous and sounds pretty good for not having done your valve adjust, sync and tune.

As for your clutch cable.... There is a transitional distance change in every bend, radius of bend and the movement of the bars that was acounted for, in relation to routing. Once you get it in the right place it may smooth out or, at least be ready for a propper adjustment.