HELP?...SHAFTIE WITH CHAIN SNATCH!

[Anonymous]

Hi Guy's.
I have not had my GS650G Katana for very long,a month.
The throttle is very sensetive when rolling off & on,is this normal, it feel's just like chain snatch,any ideas before I pull it apart.

Cheer's
Paul

[SqDancerLynn1]

With the bike on the centerstand and in gear, check the drive train free play. it is normal for the rear wheel to be moved up to 1/2 a revolution

[Anonymous]

In any gear my rear wheel freeplay is about 2-3 inches at the tyre. Wouldn't 1/2 turn be way too much?

A carb balance and tuneup could make a big difference. Throttle control on shafties can be agricultural when the motor's not running just so.

[Anonymous]

Vacuum carbs are MUCH more sensitive to throttle input then purely mechanical carbs. My 650G is the same way.

[Anonymous]

Correct about CV carbs. The way to control this snatch at low speeds is to give the engine some rpm's to smooth out its power pulses. At the same time, use the clutch to control how much forward motion the bike receives from the engine.

In other words, use the clutch's friction point and let it slip to achieve the desired smoothness.

Nick

[Anonymous]

Carby's are balanced,that was the first thing I looked at.
I have 2 1/2 in of slack at the weel when in gear.

[Anonymous]

Carby's are balanced,that was the first thing I looked at.
I have 2 1/2 in of slack at the weel when in gear.

You are saying you have > 2 1/2 in of slack < in the chain?
Or the wheel will move forward and back that much?

Normal tension ( slack ) in chain is 7/8" up & down.

Peace,
Busafied

[Anonymous]

When I last looked it was still a shaft drive!

[Anonymous]

:roll:

pardon me I missed an elusive clue, guess I beeter get shoe glasses after all

[Anonymous]

Carby's are balanced,that was the first thing I looked at.
I have 2 1/2 in of slack at the weel when in gear.

Yep, that's about the same as my 850.

To expand on Nick's point - sometimes I just have a day when coordination goes out the window and the drive train snatches when throttling out of a corner no matter how hard I try to stop it. Gets even worse if there's an attractive female audience.....

Bad tanks of fuel don't help either.

[Anonymous]

I have the ssame issue some days. It's especially bad if I decide to ride without gloves on. You can be sure I'll stall it at least once that day when leaving stop lights.