Some help with my throttle please?

[Guest]

This might be a very stupid question, but I'm having no luck finding the answer online or in the Haynes manual.

Should something inside the control housing physically stop the throttle tube at a closed position/off position, or is it just the cables that stop it turning?

I ask as my GS550 didn't have the original throttle tube on it and I've fitted an R1 throttle as a replacement, but it doesn't touch anything inside the housing.

As as side note, is there any difference in push and pull cables physically? I need to replace the push as it didn't have that either, but don't know what it should be like.

Many thanks

[JTGS850GL]

The pull and return cables are the same. Assuming you have a 78/79 GS550.

[Wes51st]

Thanks that was a rapid response!

Yes I do have a 79 so that's one question I can tick of my list, thank you.

[Wes51st]

Is anyone able to help with my perhaps idiotic question on whether there should be a physical throttle stop within the control housing?

Thanks

[steveb922]

No physical stop on my '80 model. And i just fitted a new tube, which had housings for two cables, so I'm guessing Suzuki saw no need to change the tube when they went from VM to BS carbs.

[Wes51st]

Thanks that's really helpful to know.

So can get a positive closure/snap without it physically stopping? If so any tips on how?

Lastly, you didn't happen to change the throttle cables did you? I think my bike takes the same as yours but I'm struggling to find the right size with the plastic control housing screws.

[steveb922]

The 'at rest' position of the throttle tube is determined by the throttle stop (idle screw) on the carburettors.

I've just fitted a new throttle cable, but I don't recall where I got mine from. Bear with me, I'll have a look through my internet history.

Here you go: http://www.ebay.co.uk/itm/SUZUKI-GS5...wAAOSwv0tVNnvD

Bear in mind that the above link is for a single cable BS carb set-up. The cables for VM carbs may be different.

[Wes51st]

Thanks, that's good of you to look out where you got your cables from.

Yes I understand that the idle position is set like that, I was meaning the solid feeling of a stop position when you let the throttle return. I just can't figure out why you throttle doesn't turn all the way forward when noting physical stops it? Perhaps if I had correct length cables, everything would fall into place.