evening all , if one was to fit a air/fuel ratio gauge to ones xt660x while fiddling with the kev mod , would there be a specific one to use , or can i just pop to my local tuning shop and buy what i can afford , and am i right in sayin , they just need a pos n neg and a feed from the 02 sensor on the pipe or where ever it be

cheers razz

Hi razz,
Dont waste your money,the only way you can measure the AFR is before the cat, thats what the lamda sensors job is , the kev mod is very clever by telling the ECU that its colder than the ambient air temp actually is, and as the AFR is only going to be richer there will be no chance of any engine damage (as in running lean) no 2 engines are the same , so i would just play with the variable resister settings out on the road untill you think the engine feels sweet.

Hope this saves you some money

Vtec

thank you , i`m all up for not wasting cash

No worries,
Kev will probably confirm when he reads your post.

V-tec

If you want a A/F ratio meter you need to buy one of the wide band ones.

This is one to use, it can data log multiple events & shows real time A/F ratio, logs TPS/RPM against A/F ratio.

http://cgi.ebay.com/ebaymotors/DynoJet-Wideband-Commander-O2-Sensor-Power-Digital-_W0QQcmdZViewItemQQhashZitem5adc1716c9QQitemZ39023 9557321QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccesso ries

I have tried the cheap ones & they just are not worth the money if you want to read the A/F ratio correctly.

My fuel mod only adjusts the A/F ratio up to +1:1, so not really worth spending the money on a A/F ratio meter.

__________________
Click here to join the XT Supporter's scheme

Mods that I have done to my XTX's

My 04 XTX
Stage 1 & 2 DNA filters / Kev fuel mod / snorkel mod / Drilled air box mod / Engine breather mod / Fork Spacer mod / 15w fork oil /
[
My 07 XTX
Raptor 700 cylinder 102mm / Modified Crank Case to take a 105mm Raptor Cylinder / 11:1 102mm JE Raptor piston / Stage 1 Raptor Hot Cam / Ported head / Colder Spark Plug / +2mm Throttle body / DNA stage 1 & 2 filters / Modified Air Box / Snorkel removed / Worry Brothers stage 2 filter cover / 6mm & 8mm Bolts Replaced with Titanium Bolts / Recovered seat in Black / O2 Eliminator /

My 09 XTX
59HP at the rear wheel / Stage 2 Raptor Hot Cam / DNA stage 3 Air Box / Carbon Can Exhausts / Modified Exhaust Link Pipes / PCIII With Custom Fuel Map / Wideband Commander O2 Data logger / LCD100 Dyno Jet display & fuel adjuster / 2500 OHM HT lead instead of a 10K OHM XT lead / Extra Coolant Cooler / Protaper Fat Bars / Tail Tidy With LED Tail Light / OKE Protection Knobs / LED indicators / AIS blocked / Modified rear sprocket rubbers / Rear Foot Pegs removed / 09 ECU With 02 Sensor Changed To A 06 ECU / Complete wiring harnes Changed from 09 to 04 / Home made LED resistor flasher / Hole drilled in the fuel tank filler neck to allow quicker filling / Modified Bar End Weights / Progressive front fork springs, 15W fork oil, forks lowered 25mm, used XTR rear links lowering the rear 20mm, rear spring one click stiffer / Changed front & rear guards from blue to black / 47T rear sprocket / Speedo Healer V4.0 / Kev throttle cam mod / Throttle grip mod / The new 2010 O2 sensor mod is out, works a treat, The new 2012 O2 Controller is out, PM me for details

Now ride a 2018 MT09SP ABS + TCS

My KTM 990 SMR Mod book. http://www.ktmsmt.com/viewtopic.php?f=13&t=4946

cheers chap