More Evo issues, this time it is VOES...

[71clementine]

Hey all...bought a 98 FLSTC about a week ago, dig the Evo, but whoever had it before me was a chucklehead, imho. It started acting up on the way home. There was some pre-ignition and in the process of chasing down the problem we found that the ignition module was going out and replaced it. Still acting up, so we tried to jet it, couldn't get it right, so we decided to rebuild the carburetor in case the previous owner had messed with something else in there. Most folks know about drilling the slide and clipping the spring, my husband believes that with stock spring and slide and proper jetting the bike will perform better. It turns out that 3 in. had been cut from the spring and the slide had been drilled so large that you could drop the needle all the way through. More is not always better! Anyrate, after we took carburetor back to stock and then jetted it properly it is running better. It now has a 48 slow and 195 main because the 185 was still a little too lean. (this is not a stock Evo) Still having a problem with a little pre-ignition and some hesitation when you jump on the throttle. The timing is set properly and in searching for the cause of the problems we have discovered that they have drilled a hole in the VOES. Why in the hell would you want to drill a hole in the VOES? Thanks in advance

[LowRider94]

Older post... I hope you got it running well.

Here's a link explaining VOES (Vacuum Operated Electrical Switch).
http://www.hdtalking.com/electrical_...explained.html

So just guessing, I would say if they punched a hole in that vacuum line, they were trying to keep the timing from being advanced until higher in the RPM range, where there would be more vacuum.

I assume by now you have tried plugging that hole. Did it help the throttling problems?

Dan

[71clementine]

Thanks for getting back with me Dan. I had almost forgotten that I had posted on the VOES. We had a whole bunch of issues with my bike and as a result replaced a lot on it. You are correct in guessing what the previous owner was trying for. I guess they did not realize that the VOES is adjustable. They didn't drill a hole in the line, it was in the VOES itself, so we replaced it. So between carb, timing, VOES, and a new ignition we got her lined out. She is at 71 hp and 78 ft/lbs torque. Not bad for an old Evo, I dig it! I took the Riders Edge course last weekend and went to DPS to get my endorsement on Tuesday. Haven't had a chance to ride since then but I am looking forward to it, although I am sure it will be a little weird to get back on the Heritage after spending all weekend on a Buell Blast, lol. Take care...