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Performance Modifications & Enhancements Engine, Fuelling & Throttle performance mods

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  # 1  
Old 14-04-10, 21:49
RedDog RedDog is offline
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Misfiring

My XTX had been running a bit rough and misfiring for a few days, gradually getting worse.
It would run fine for a few minutes and then misfire really badly, then calm down again.
It got to the stage where I had to hold it at around 4000rpm when stationary to keep it running.
Eventually the motor died and all dash displays went out as I pulled away from a junction.
I turned the key on and off a few times but everything was dead.

The battery leads were still connected, but I happened to push the white connector on the thin black lead from the battery earth and it clicked together. When I pulled on it, it came apart very easily.

It looked as if the connector was together but it was apart enough to cause the misfire.
I had to prise the lugs apart a bit so that when the connector was pushed together it stayed connected.

May be worth checking your connector first if you have a misfire.
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  # 2  
Old 14-04-10, 23:12
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Kev Kev is offline
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Great info, glad you got it sorted. Not seen this before.
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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

  # 3  
Old 15-04-10, 06:02
gianni1951 gianni1951 is offline
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thank you for information.
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