FXR balance shaft bearing?

[richban]

your right rich its a 620-9 9= 9mm and the bearings you can buy are 10mm just buy on of the cheaper ones from skf and get Cemac to grind it like I did in mine.

Funny after all the drama it tuners out that the left side case has been machined to take a cheap off the shelf 6204. So it can be done but not much meat left at all. Strange coz the bottom end was of a commuter that had run out of oil. Maybe a factory cock up and fix. Anyway with the shaft back in she is much smoother. Will be interesting to see how much hp it has lost, if any.

[F5 Dave]

Negligible, I wouldn't say more than 7 or 8%

[richban]

Negligible, I wouldn't say more than 7 or 8%

7 to 8% nooooooooooooooowha. Unacceptable. Best start tuning the thing proper then.

[crazy man]

on a 600 4 they gained 3 hp by removing them but no idea on 150 maybe 1 hp who knows

[richban]

on a 600 4 they gained 3 hp by removing them but no idea on 150 maybe 1 hp who knows

It will be interesting to see should know next week.

[Henk]

Just bore it an extra 20cc to 200 to make up for the power loss.

[Pumba]

But isint already a 250cc

[richban]

But isint already a 250cc

If only. But if it was a 250 it would be making over 40hp with the same level of tuning. Now that would be fun.

Well sort of, valve size might limit it quite a bit.

[F5 Dave]

7 to 8% nooooooooooooooowha. Unacceptable. Best start tuning the thing proper then.

Glad I got a bite from my fictitious figure.