i have a 2001 honda 250ex would it be bad if i ran it without the spark arrestor on? i have heard sooo many conflicting stories i don't know what to believe. thanx

 

Probably since honda's are notoriously lean from the factory, (emission's requirement's). Any change's you make you should rejet, if you don't you run the risk of running lean and overheating. This may or maynot cause severe engine damage, for the price of a couple keihin jet's from your local dealer IT"S NOT WORTH IT. Stock is 95 if you take the baffle out you should probably go up to a 98 maybe even 100 due to the lean jetting from the factory.Hope this help's.

 

thats correctomuno,,You definatly will want to bump up your main jet,,youll be suprised at the increase on the bottom end power just from pulling the S/A and re jetting