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+--- Thread: Diagnosing a noise..possible Red98 victory but he did sort my leads ;) (/showthread.php?tid=67794)
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Diagnosing a noise..possible Red98 victory but he did sort my leads ;) - noggythenog - 18-03-14
Well i've had fun & games trying to diagnose a strange pinging noise from my front wheel.
On the plus side i have learned how to get my front wheel off & a little bit more of my fazer is realised.
So i have this noise like a stone pinging underneath my front mudguard, usually when moving off but also when coming to a stand still, sometimes 1 ping, sometimes 2 or 3.....once im going i cant notice anything and i don't think it is speed relative...doesn't get faster...i can always hear it loudly & im quite sure i'd notice it whilst at speed & it would be pretty obvious.....so only at slow speed hmmmmmmm!
Whipped my wheel off....checked the speedo sensor dog...all looking good........took the wheel to the garage & they reckon the bearings in the wheel look good...the bike freewheels fine with no obvious brake binding & no indication either on the discs....the steering smoothely moves from lock to lock....basically the bike seems fine apart from this annoying noise.
I've put everything back on with plenty lithium grease & copper ease.....& the noise is still there.
So hard to replicate it without riding under power but tomorrow i'll try find a large & quiet hill so that i can roll down it unpowered & try get it to happen & rule out other stuff.
Got a feeling the fender might just be catching on the tyre sometimes...it is very close.....see pic.....& maybe it needs my weight on it to do so as it doesn't do it while pushing the bike.....no obvious marks on the tyre...or the fender though.
Anyway....still a good day learning some more :faz Stuff.....garden slabs came in handy.
Re: Diagnosing a noise. - Chris - 18-03-14
As you ride off then any little stones under your wheel will sometimes stick to the surface of the tyre and get rubbed off by the mudguard. could just be that buddy as the mudguard does look pretty close.
Chris
Re: Diagnosing a noise. - noggythenog - 18-03-14
(18-03-14, 06:53 PM)Chris link Wrote: As you ride off then any little stones under your wheel will sometimes stick to the surface of the tyre and get rubbed off by the mudguard. could just be that buddy as the mudguard does look pretty close.
Chris
Ye could be Chris.....my only other thought is that maybe it isnt even a ping.....could it be like an electrical arcing noise that just sounds like a plastic ping but again theres no reason that wouldnt keep happening once i was going faster......or would the connnection into the back of the speedo make a noise like this if it was foccing up?????
Re: Diagnosing a noise. - darrsi - 18-03-14
Chris could be right Noggy, ever since i fitted the front extended mudguard I began to wonder what the weird noises I kept hearing were, then I realised it was stones hitting it.
Re: Diagnosing a noise. - Doddsie - 18-03-14
Id take it for a spin with the mudguard off, If it still pings, its not that. If it stops pinging, it almost certainly is the mudguard.
Re: Diagnosing a noise. - noggythenog - 18-03-14
(18-03-14, 07:37 PM)Doddsie link Wrote: Id take it for a spin with the mudguard off, If it still pings, its not that. If it stops pinging, it almost certainly is the mudguard.
Ye i was gonna do that Doddsie....until i remembered the new fender is bolted on from the inside out......so i need the wheel off again.. :wall
Re: Diagnosing a noise. - red98 - 18-03-14
How about a ht lead arcing out.......have a look in the dark, easy to see then
Re: Diagnosing a noise. - noggythenog - 18-03-14
(18-03-14, 08:03 PM)red98 link Wrote: How about a ht lead arcing out.......have a look in the dark, easy to see then
Nice suggestion Red...i'll check that out.....i had the leads off over a week ago when i had my stutter...wd40 cured it.....i confess....one of the leads came out of the lead cap....so i stuck it back in...but it was fine...so that's another thing to check.
Do i just start it up & rev ut then????.....should it be massively onvious???
Re: Diagnosing a noise. - red98 - 18-03-14
Yeh...you'll see it easy in the dark...should be able to hear it aswell......dont touch though :eek........what you waiting for....get out there now :lol
Re: Diagnosing a noise. - noggythenog - 18-03-14
(18-03-14, 08:27 PM)red98 link Wrote: Yeh...you'll see it easy in the dark...should be able to hear it aswell......dont touch though :eek ........what you waiting for....get out there now :lol
top top top top Red......you are the man! :woot :woot :woot :woot
Far offside lead is arcing......from just above the cap across to the rubber mat protector thing.....only small but right enough it is ticking away which i've never noticed before.......so am i right in assuming that when i pulling off & putting initial load on the engine that it is enough to make this arcing much bigger & that's when i'm getting the big chaps??????
Do i just pull out the lead from the lead cap & cut an inch off then stick it back in???.
Thanks for the help....even if the arc isn't the source of the noise it is a problem all the same.
Tried taking a pic with the ipad but not enough light to see anything.
Re: Diagnosing a noise. - red98 - 18-03-14
All from the comfort of my armchair, theres only one red :rollin :rollin :rollin.......yep......trim 1/4 in off the end, they go hard after a few years..........screw fit, but dont over do it, just so it gets home, might be worth doing the others while your in there
Re: Diagnosing a noise. - noggythenog - 18-03-14
What do you mean by screw fit Red???....i cant see anything that screws in.....theres the plug cap which squeezes over the plug..then theres the cable part of the lead which just push fits into the end of the cap & over the metal contact....am i missing something? :o
I've trimmed off 2 1/4 inch parts of the lead now & popped it back into the cap.......much better but still has an arc maybe once every 10 seconds as opposed to the previous which was once every quarter of a second.
Think ill go for a spin tomorrow & see whether the original noise has mostly disappeared now but think i'll need to trim more lead off......trouble is im closing in on where the cable is double insulated....dunno if that has any relevance really....i can prob just trim it back too i suppose.
But anyway i just love it when a foc-u plan comes together.
Surely that has caused some rough running.
Re: Diagnosing a noise. - darrsi - 18-03-14
Nice work.
The plug cap has a screw in it that you twist into the wires of the HT lead.
Re: Diagnosing a noise. - red98 - 18-03-14
The rubber cap between cap and lead is to keep the moisture out , the cable is screwed on to the L shaped plug cap that fits onto the spark plug........black caps are the origanal ones , if red they will be after market ngk ones......be carefull not to trim too much off as it wont reach the plug and is moulded into the coil at the other end soo hard to replace........they can be joined but not reconmended.
Re: Diagnosing a noise. - noggythenog - 18-03-14
Roger that...i went back out & did what uncle Red told me & yep i see what yous mean.....it's not like a nut & bolt thread but you just thread into the lead....like a screw into wood.
Now not arcing whatsoever plus i did the same to the next one along.
I'll do the last 2 in the morning as neighbours getting focced off with the noise & fumes.
What a day of learning today has been...cant wait for a blast in the morning. 8)
:thumbup :thumbup :thumbup
Edit...i had no L piece...just a straight plug cap then straight lead.....think i've trimmed my maximum now so hope that lasts.
About these leads then.....aint that bad design......i mean eventually all bikes will be screwed coz folk have trimmed as much as they can & then when it arcs again you cant just replace......or is it a case of you just buy a new coil pack.....i thought there'd be like a replaceable distributor cap or something....quite strange.
Re: Diagnosing a noise. - red98 - 18-03-14
Have a good'un matey
Re: Diagnosing a noise. - noggythenog - 18-03-14
(18-03-14, 10:20 PM)red98 link Wrote: Have a good'un matey
You could get pissed for free with all the pints foccers are due you
Thanks again. 8)
Re: Diagnosing a noise........another Red98 victory. - Punkstig - 19-03-14
Now you've done that slap some grease over the rubber cap and wire to stop any moisture getting in and corroding the wire tip again!
Re: Diagnosing a noise........another Red98 victory. - noggythenog - 19-03-14
(19-03-14, 08:58 AM)Punkstig link Wrote: Now you've done that slap some grease over the rubber cap and wire to stop any moisture getting in and corroding the wire tip again!
Thanks for the tip Punkstig.
Just got some lithium grease yesterday so i'll whack that on.
Got a few chores to do then im off out for a spin, see if it feels any smoother.
Re: Diagnosing a noise........another Red98 victory. - red98 - 19-03-14
Well........