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ninjarider247
01-11-2010, 07:07 PM
hey guy can you bore a 2002 sport traxs 300ex. is the liner castiorn thanks in advance

honda300EXtreme
01-11-2010, 11:31 PM
yes you can bore a 300ex cylinder,

there is no nikasil coating on the cylinder wall if thats your concern

ninjarider247
01-12-2010, 03:33 PM
ok thanks alot will boring it out give me that little bit more power on the straighter tracks

honda300EXtreme
01-12-2010, 04:13 PM
well whats your set-up right now

ninjarider247
01-12-2010, 05:08 PM
well my atv is stock besides the itp rims but i am working on it still i am just racing it stock right now

honda300EXtreme
01-12-2010, 05:33 PM
well id start with a full exhaust system first, dont just do the slip on cause the stock header is restrictive

i wouldnt so much worry about the bore size, but maybe a fresh hone and a 11:1 (requires premium gas)

and if the cylinder needs bored id go maybe 80 over, a 300ex can really benefit from head work, such as port and polish. over sized valves. and a good cam (im not talkin about hot cams) but others require hd valve springs and hardweld rockers