Digging up an old thread...
How's everyone getting on with their Lectron carbs?
I'm about to start rebuilding 2 x KDXs.
Done the stem swap into 2008/9 yz250f clamps for one of the bikes and will strip the other bike this week I hope - will start a build thread...
Anyway, had planned to go with RB Designs but he's not interested with business outside of the USA at present... so it seems lectron is the way to go. Having checked their website, looks like they had enough interest for the KDX after all... but it's a pricey upgrade so any updates on pros/cons would be welcome.
Also.... what's the best way to upload photos here?
Cheers
https://www.lectronfuelsystems.com/kdx.html
Copy and pasted the info from the website for easy reference.
"Note: The Lectron carb is bigger than the stock KDX carb. They will not fit with a Boyesen Rad Valve or thicker V-Force reed block without modification.
This kit includes:
34mm Power Jet Carb - modified for fit on the KDX
8mm Barnett HD Long throttle cable
Metering Rod Adjustment Tool
Throttles that use a guide without a wheel will have too much free play and will NOT work with our cable. If you have a throttle like this, you can order the Motion Pro Vortex throttle from our website, or any modern KX 125/250, YZ 125/250, or RM 125/250 throttle will work.
The 34mm Lectron Power Jet Carb is our go-to carb for applications like harescrambles and enduros. They are an overall upgrade to the stock carburetor as they provide superior bottom end grunt and crisper throttle response, improved fuel economy, and better reliability without having to rejet for weather or elevation changes.
This carb kit includes the throttle cable. The adjustment tool is highly recommended in case you have to do any tuning. Using pliers to make adjustments can scratch the metering rod and alter the fuel delivery characteristics.
*Lectrons provide superior throttle response and power delivery by utilizing our patented metering rod.
*Our simple design does not incorporate multiple jets to replace.
*Our taper bore squeezes the air to increase speed and create fuel lift behind our flat metering rod.
*Lectrons are a great choice for riders seeking performance, fuel economy, simplicity and smoother power delivery.
Depending on some set ups, your air boot may rub on your shock spring. This is not an issue as the spring doesn't move enough to cause wear.
We do not recommend running a reed spacer. They may cause fitment issues, and the longer body of the Lectron compensates for the longer intake tract.
Note: All carbs are built to order and have a 7 day build time, however, some orders will ship sooner.
By submitting an order for a Lectron product, you are agreeing to our shipping, cancellations, and returns policy."