Flywheel turning

[alexanderfoti]

I have had a spare flywheel lying about and I have just dropped it off at my friend machinist who is going to turn it down for me.

It currently weighs 9KG, I am aming for 4-5KG, so lets see how it fairs when its done.

[Anorak_ian]

Fingers crossed.

[alexanderfoti]

Just got the flywheel back.

Due to the profile of the flywheel, which is like this if you look at the side:



I wasnt able to take too much off without affecting the structural integriy, as all the weight is held on the rim with a thin connecting peice in the middle.

I was left with this:



It weighs 6.7 KG compared to 9.00kg of the original. I have just fitted it and from brief revs the engine seems quicker to rev, I should have a chance to take it out tomorrow and see how it rides!

[tappy]

As long as it idles OK I should think it improves the ride no end.
Any update?

[alexanderfoti]

Had a long ride today.

Broke a gearbox mount weld so im going to beef that up tomorrow.

The engine revs more freely and is a tiny bit faster through the gears. Gear changing however is much nicer as the revs come down quicker when changing gear.

The idle has been completely unaffacted.

[Anorak_ian]

Broke a gearbox mount weld

More torque due to a faster acceleration?

[alexanderfoti]

Broke a gearbox mount weld

More torque due to a faster acceleration?

More like my bad engineering/welding. The mount has broken 4 times in the past.