2004 XT660X preignition between 10-30% throttle
Hi Guys,
I have a problem...
I bought the bike from a dodgy guy and spent a bit of time fixing it up. I topped up the gas with 98, new air filter, cush drive, airtemp mod, co adjust from 10 upwards to 20 then 30. I was having trouble with stalling at low rpm so I cranked the idle speed. I think that's when I started getting trouble. I thought it was a bad battery as went flat trying to get it started. It charges up quickly but drops way down when cranking.
I've done the accelerator mod, adjusted the idle throttle and tps, installed a new tps even but still getting preignition at around 10-30% throttle.
I've also put an iridium plug in but it's one increment colder.
What can I do to troubleshoot?
My thought is that as I've adjusted the idle and then back to the tps several times, the relationship between the two is off and I need to go back to setting up the throttle plate/cable correctly then do the TPS, then do the idle adjust. The idle screw is set to max right now and it's taking a few twists of the throttle to get it started along with a bit of cranking, about 3 sec.
Could someone tell me how to set up the throttle vs the TPS?
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