RM 125 cylinder

[Nipper]

I have a rm 125 b cylinder that is now at 56mm this is 2mm over the original and it is not looking pretty down there.
I am thinking of getting it resleeved so as to start with a standard piston. Is this the best way to go ,or should I just look for another barrel? Any thoughts .Cheers Nipper

[oldfart]

Are you cashed up ....
http://www.ebay.com.au/itm/SUZUKI-CYCLINDER-BARREL-11210-41310-RM125B-C-/160864592111?pt=AU_Motorcycle_Parts_Accessories&hash=item257446e0ef

[Canam370]

I have a 125B engine with electrics I'll part with- no piston but the bore looks OK and the bore measures 54mm. PM if interested for details.

[oldfart]

I'll swoop on it if he is not interested.

[Lozza]

I have a rm 125 b cylinder that is now at 56mm this is 2mm over the original and it is not looking pretty down there.
I am thinking of getting it resleeved so as to start with a standard piston. Is this the best way to go ,or should I just look for another barrel? Any thoughts .Cheers Nipper

You can Nicasil over cast iron would cost the same as the NOS cylinder.

[bigk]

Use an Elsinore piston. 56-58mm should be plenty of cylinder to bore that far.. You'll have to do something about the increased compression unless you can get some better then pump fuel.
K

[Bamford#69]

Hi,
If  you use an Elsinore piston 56-58mm, remember GCR rule 12.4.5.1 page 92, Engine Capacity Tolerances, Classic Motocross 5% permitted excess (bore/engine size).
cheers

[firko]

If  you use an Elsinore piston 56-58mm, remember GCR rule 12.4.5.1 page 92, Engine Capacity Tolerances, Classic Motocross 5% permitted excess (bore/engine size).

[vandy010]

If  you use an Elsinore piston 56-58mm, remember GCR rule 12.4.5.1 page 92, Engine Capacity Tolerances, Classic Motocross 5% permitted excess (bore/engine size).

^^^
what he said

[Nipper]

Thanks guys for your input with the rm cylinder it has been great. Canam370 has come to the rescue with a spare parts motor to help fix the situation. Cheers Nipper.