Neutral switch wear
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  • 1 Post By stone

Thread: Neutral switch wear

  1. #1

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    Neutral switch wear

    Hi from London.

    There are some old posts here re. neutral switch problems.

    I encountered this problem with my CBRXX5 less than a year ago.'Usual symptoms: bike fires up and runs well for any journey but once up to temperature (85-100 degrees) bike will not restart when switched off (or more embarrassingly if mistakenly stalled in heavy traffic!). The neutral light doesn't light up when in neutral and the bike behaves as though it's in gear, (my clutch switch override has never worked!). Once the bike cools down again whilst switched off, it will restart fine once the temperature gets down to around 75 degrees.

    On advice I changed the neutral switch for a Tourmax replacement item for about £10 on ebay. The old and new switches looked identical and the original seemed to operate as per new. On closer inspection I noticed that the spring loaded contact on the original switch had worn down by about 1mm-1.5mm. This was obviously the problem as the replacement cured all symptoms once installed. I just thought I'd share that for anyone suffering the same problem.

    My present question is this: 8 months on from replacing the neutral switch, I have had exactly the same problem again!!! I have just had to replace the neutral switch again for the same reason!!! I have been riding for 40+ years on countless machines of all ages (except new!) and I've never had to change a neutral switch!!! Why is my bike 'eating" neutral switches???

    2005 CBR XX5 low mileage, well maintained, ridden all year round, regular oil changes, parked outdoors, no other mechanical problems.

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  3. #2

    Member #
    1728
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    81,82,83 CBF's, 98 CBRxx, 07 CBR-1000RR/R, 83 FXSB
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    Re: Neutral switch wear

    I do not believe that I've ever had one fail in total. Most often they do stop functioning, but a cleaning of the unit and the area surrounding it tends to restore function again. Chain lube and road grime seem to be the biggest issues.

    T.
    Attached Images Attached Images
    "Stemmata quid faciunt."

  4. #3
    Supercharged Mod
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    4781
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    99 Bird. 03 Supercharged KwakBird. DR800 Big
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    Re: Neutral switch wear

    Very good question SNOZ and one I'm afraid I don't have the answer for, but a couple of pointers.

    I'm on 114K miles and I am still on the original neutral switch, I haven't ever pulled mine. That said I have had similar problems a couple of times.
    First time was in Nice and the air temperature was 36C, we were stuck in traffic so I switched off since the fan wasn't coping, the bike wouldn't fire up when the traffic started to move. I was at the point of having to push the bike to the side of the road, (not easy when you are in the outside lane of a dual carriageway) when it fired up.

    Recently in the UK on the hot (UK hot!) days I have noticed similar issues a couple of times when I have crawled home (several miles of 20mph limit to get to my house) bike in neutral, clutch pulled in (my switch works) and bike won't start unless the side stand is up. The 'common factor' between Nice and at my home is that the fan is running the moment ignition is turned on.

    I like 'logic' and I can't see any here but as I said the common factor in both 'failures to start' is the running fan. I'm not saying the neutral switch is not your problem but as beestoys has said failure is uncommon and he rides big mileage in hot climes. Your XX5 and my 99 actuate their fans differently but I'm wondering if your fault has appeared when the fan has been actuated and whilst it appears that the neutral switch is at fault it is actually a different but related fault in the cut off circuits.
    Full of Hot air? Intercool yourself............ you know it makes sense

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  6. #4

    Member #
    37115
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    1997 honda cbr 1100xx ,2000 zx12r ,1997 xr400,
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    Re: Neutral switch wear

    as i recall that just shorts to earth @ N , replace with OEM only.

    just my 2 cnts
    Krisbiker2 likes this.


 

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