increasing capacity from 250cc to 300cc

[shai101]

hello i have a SUZUKI GN 250 that i working on him and i what to increas the capacity.

i saw to kit on the net and i love if you can help me choose the best one

http://www.aliexpress.com/item/78mm-Cylinder-Piston-Ring-Gasket-Kit-300CC-Dirt-Bike-Pit-Bike-Dirt-Pit-bike/752070886.html?spm=2114.01020208.3.10.TsYPvm&ws_ab_test=searchweb201556_2,searchweb201644_3_79_78_77_82_80_62,searchweb201560_5

or

http://www.aliexpress.com/item/SUZUKI-GN250-GN-250-BIG-BORE-Cylinder-Kit-Upgrade-to-300-cc-GN300-improve-performance/1691723347.html?spm=2114.01020208.3.1.TsYPvm&ws_ab_test=searchweb201556_2,searchweb201644_3_79_78_77_82_80_62,searchweb201560_5

ty all!
and sorry if my english is not the best

 

[hillsy]

They're both about the same price - they're probably the same.


Don't know if you will have any problems running this with the stock head but it will probably be OK.

 

[shai101]

ahhh the are not the same.... look on the size and the material.....

 

[Tune-A-Fish]

hello i have a SUZUKI GN 250 that i working on him and i what to increas the capacity.

i saw to kit on the net and i love if you can help me choose the best one

http://www.aliexpress.com/item/78mm-Cylinder-Piston-Ring-Gasket-Kit-300CC-Dirt-Bike-Pit-Bike-Dirt-Pit-bike/752070886.html?spm=2114.01020208.3.10.TsYPvm&ws_ab_test=searchweb201556_2,searchweb201644_3_79_78_77_82_80_62,searchweb201560_5

or

http://www.aliexpress.com/item/SUZUKI-GN250-GN-250-BIG-BORE-Cylinder-Kit-Upgrade-to-300-cc-GN300-improve-performance/1691723347.html?spm=2114.01020208.3.1.TsYPvm&ws_ab_test=searchweb201556_2,searchweb201644_3_79_78_77_82_80_62,searchweb201560_5

ty all!
and sorry if my english is not the best

Trying to generate some clicks on a website.... Troll.

 

[barnett468]

.
ok, you need to bore your engine cases for their bigger sleeve and check your piston compression height against theirs to see if they are within around .5 mm of each other . . if they are not, i wouldn't buy it unless you are a machinist and engine builder.

you may also need a slightly larger carb depending on your goals.

 

[shai101]

.
ok, you need to bore your engine cases for their bigger sleeve and check your piston compression height against theirs to see if they are within around .5 mm of each other . . if they are not, i wouldn't buy it unless you are a machinist and engine builder.

you may also need a slightly larger carb depending on your goals.

yes im a car mechanic but is my first bike project.... . ty on the advice i think i will go on the aluminum cylinder because heat dissipation capability

Tune-A-Fish no im not a trol its just the only sebsite i fund....
anyway if im a troll can you pay me some money ;D

 

[Tune-A-Fish]

Tune-A-Fish no im not a trol its just the only sebsite i fund....
anyway if im a troll can you pay me some money ;D

Not likely, but I agree with your choice if that lends anything to the sitchimigation