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Engine knock when giving it some, normal or uh oh?
Hi all,
I have had this bike a week (xtx, 32,000 ks) and am wondering if a knocking noise when getting up in revs and throttle is normal or something I should be concerned about. I have read about and heard the final drive nut knocking noise on Youtube but mine is relatively quiet at idle and only makes this noise when under load. It has a good service history every 5,000k... well a stamp in the book anyway and I have no idea how it was treated before I got it. I have watched various videos and they do sound similar to mine, quiet as until you open the tap and then gets all snarly. Doing 100ks on the open road is quiet but I can hear it when doing ^110. No noise when engine braking at high revs which is where I thought bad big ends made themselves known. I see they have a roller bearing big end so it may be how they are? Appreciate any thoughts or comments. Cheers Mike Last edited by MikeinNZ; 19-06-18 at 10:26. |
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For peace of mine I would get a mechanic to have a listen to the motor, to determine if it is a problem or not.
__________________
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 |
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yep...+1 on paying a mechanic to look at it.
__________________
I have a lot of growing up to do. I realized that the other day inside my fort. |
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or post video clip up ..
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I have just done the tappets which were loose, not that they will make a knocking noise. I'm off the dealership to get some cush rubbers and a filter so might see if they can have a listen. Will report back
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Had the mechanic at Yamaha have a listen who said it was normal, said he has done a few primary drive nuts over the years so I have ordered all the parts necessary to do the job. Should be here in a couple of weeks so will save that one for a rainy day.
will let you know if the nut is loose. |
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