Booster Plug - What's Actually Inside

[fruitcake]

I opted for a simple resistor which worked quite well.

 

The booster plug claims a very wide temperature range of operation which is great when you ride in a wide range of temperatures, but I only ride between about -5C minimum and no more than 15 or 20C maximum (Scottish weather !) for most of the time, so a standard resistor is workable for me.It enrichens the fuel mixture at all points.

 

Looking at how it's potted up, the potting provides a lot of thermal insulation, so even if there was a temperature sensing element in there it would have a very slow response time, maybe as long as 15 minutes

 

There is a NTC temperature probe (the middle cable) that you run to somewhere on the bike exposed to the outside temperature so it's not affected by heat soak like the OEM could possibly be.

 

I tested the probe with my multimeter and it reacted to the warmth of my hand pretty quickly, so I think the principle is actually sound.  It's simply the price I take exception to.

 

What resistor did you use out of interest - I couldn't help ruining the resistor as I cut the potting off and need to work out the colour bands.