TC GSA - Heavier Flywheel?

[MisterB]

Hi all,

I recently tested a 14 plate LC GS. One thing I didn't like was the engine wouldn't run smoothly at 30mph in 3rd gear - it kept surging which wasn't nice. I've asked about this on the LC forum and one of the replies mentioned that the newest bikes have engines with a heavier flywheel which smooths things out dramatically. At the back of my mind somewhere was the notion that twin cam GSAs also have a heavier flywheel than TC GSs - does anyone know if this is correct please? If so, would that smoooth down throttle response and slow speed running, or is it a case of heading to Hilltop again?!

 

[autogs]

no heavier flywheel on a tc gsa,engines are identical,had my previous tc gsa hilltopped and would def recomend it

 

[Bendy toy]

The surging is caused by running the engine lean. Correcting the air fuel ratio on a dyno remap solves the problem and will actually make it use less fuel. Assuming you don't use the additional power.

Low throttle smoothness can be improved by accurately balancing the throttle bodies but it wont do anything for a weak mixture.

 

[Pukmeister]

The 'flywheel' on the hex heads is the dry clutch pressure plate/starter ring gear which is common across the range. No difference in any of the 1200's.

Bendy has it spot on.

 

[Steptoe]

The 'flywheel' on the hex heads is the dry clutch pressure plate/starter ring gear which is common across the range. No difference in any of the 1200's.

Bendy has it spot on.

.

Actually there is a difference on the flywheel/starter ring gear between the early and later models of 1200

 

[MisterB]

.

Actually there is a difference on the flywheel/starter ring gear between the early and later models of 1200

Uh-oh...can open...worms everywhere!!!

 

[Bendy toy]

But while the ring gear differs, are the early and late flywheels any different in weight?