Post by
ricebike »
https://forums.nicoclub.com/ricebike-u5064.html
Sun Jul 18, 2004 8:26 am
May, Y u askin? <just curious>
u got the SOHC 89-90 engine, right?
manual says 87 octane... u can bump it up to 89-91 octane if u have carbon buildup in the combustion chambers...& notice a bit of 'pingin' on regular gas... these sohc engines didn't come equipped w/ knock sensors to retard the timing automatically when using a lower grade gas... bah!
look into seafoaming the engine just to keep using the 87 octane!