Polini cylinders 350cc

**Tue Jun 07, 2011 3:52 pm » Post: #1 » Download Post**

I got a set of Polini cylindres with my NSR, anyone knows about the performance and realiability etc. I have no pistons and I think they will need to be re-done with nikasil or whatever its called. I think that you need to open up your cases to fit them. Ayone knows more about them?
I am thinking to sell them probably so if any interest drop me a line.

**Tue Jun 07, 2011 8:41 pm » Post: #2 » Download Post**

Show us a picture , I may be interested .

**Thu Jun 09, 2011 7:20 pm » Post: #3 » Download Post**

I will get a picture in here soon, so sofar no one has any info on them?
The guy that a bought the bike from had it on told me it use to give out like 85HP or something...but obviously not for everyday use.

**Thu Jun 09, 2011 9:07 pm » Post: #4 » Download Post**

85hp ! Now your talking my language .

**Fri Jun 10, 2011 6:30 pm » Post: #5 » Download Post**

I have glass-blasted them and painted today, the bore is 60mm, dont know what cc that will make, head and cylinders look ok inside actually, I will post pics tomorrow.
It looks like they should have much higher compression, then the stock.

**Fri Jun 10, 2011 6:46 pm » Post: #6 » Download Post**

Does anyone know the bore size of the Tygas big bore kit?

**Fri Jun 10, 2011 6:55 pm » Post: #7 » Download Post**

59mm

**Fri Jun 10, 2011 9:35 pm » Post: #8 » Download Post**

So I guess they are 308cc or something, anyway will have them on ebay soon. If anyone is interested, let me know.

**Sat Jun 11, 2011 10:58 am » Post: #9 » Download Post**

Pictures of the cylinders, andheads. The heads are in perfect condition. one of the cylinders has minor scratches, will have to be fixed-the other one looks fine.

**Sat Jun 11, 2011 3:15 pm » Post: #10 » Download Post**

They look like the older version nsr 150 barrel with the cast iron bore .

**Sat Jun 11, 2011 3:26 pm » Post: #11 » Download Post**

Dont know...it says Polini on them, and the mufflers that I have on the bike came with this cylinders, (I have asked the previous owner.) All I know Polini make parts and exhausts to tune scooters etc, there is plenty of meal left for re-boring them anyway. I dont know from where you can get the pistons though.

**Sun Jun 12, 2011 1:11 am » Post: #12 » Download Post**

very interesting how much are you after for them.

**Sun Jun 12, 2011 3:28 am » Post: #13 » Download Post**

From looking at the water hose position they're big bore NSR125 cylinders, so very similar to the old NSR150RR. They can be fitted with some mods.

**Sun Jun 12, 2011 5:01 am » Post: #14 » Download Post**

I am sure that nsr125 use a 16mm gudgeon pin. ?

**Sun Jun 12, 2011 5:26 am » Post: #15 » Download Post**

Neal wrote:I am sure that nsr125 use a 16mm gudgeon pin. ?

And...?

So does an NSR150! Exclamation

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