Crank Bearing Size

[Jono]

About to start rebuilding a SIL GP150cc Engine.
Prior to comencing I need to Order some seals and bearings, however I am not sure what Mag size bearing I need is it
either a NU205 or a NU2205E?
Sticky's book says LI/SX/TV is the NU205 and the GP200 a NU2205E are all GP's the same?
Advice would be welcomed.
Jono

[grandpa]

Hi Jono,
The gp 150 uses the NU205 with a spacer.If you fit a 200 crankshaft use NU2205 bearing which is wider and therefore does not use the spacer.If you fit new rings make sure it has not been bored there were no markings on my second GP other than JN8 .It turned out to have been bored to 4th oversize 57.8mm
Grandpa

[Jono]

Thanks Grandpa for reply much appreciated.
Engine performs well as was in original scooter, but has started to burn a little oil(white smoke occasionally) so I am about to change seals and thought would change original Indian bearings.
Will check piston size when stripped for future reference although do not intend to replace at present.
Regards Jono