Buzzing Honda's - old ones....

[SneakyPete]

Had an issue with a strange sound - firstly with an '82 GL1100 GoldWing and more recently on a '85 Magna 500.

Getting a high-pitched whirring/buzzing sound - occasional, not continuous, does not increase with engine speed, occurs around 3000rpm, and sometimes will persist at tickover but stops when throttle blipped. Will not happen when bike is stationary so cannot trace when off bike(s)

Thought it might be linked to ignition amplifiers - have found evidence of overheating - the resin has melted out of the pots. Replacements have not cured the sound.

Anyone else had this - got any clues??

SP

[Vin]

Sounds like you need to tune the radio in.

[SneakyPete]

[crackpotterpi...]

that looks nice...........loving the custom paint job
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1990 jc20 nsr125-sold,2003 cg 125-sold currently no bike.........might get another 2 stroke me thinks much more fun

[Vin]

Wow thats different.

[virus]

Hey Pete, bit of a long shot but have you got any Cable operated instruments?

My old 250's tacho used to make a wiring noise, and the 400 has recently started to get it on the speedo. If youve got clocks, give them a firm tap when it buzzes and if the sound changes then you've isolated it.

Curing it is something Ive not worked out yet, I'm probably going to go for some WD40 into the clock through the cable hole to lubricate, then a blob of LM grease on the end of the cable to try and stop vibration between cable and clock.


Cheers
VJ



P.S thunderdog's looking as badass as ever, show em the magna
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[Darth]

https://i54.photobucket.com/albums/g82/darthpalmer/2.jpg
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Harold_Shand wrote: I suppose it's like anything, you get your fingers burned when you start out, you learn from it and eventually become a complete arsehole about the whole thing.

[SneakyPete]

[virus]

Same as on the 400, Took me ages to work it out, my speedo likes to buzz at 10-20mph, but sometimes I can come to a stop and it buzzes shortly after.

Nice idea on the pipe, might look a bit wierd though.


P.s. could only rate the magna and thunderdog as cool, there isnt a 'cool as penguins piss on a cold day' rating


Cheers
VJ
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[Ichy]

I'm about 75% sure that the GL and the Magna both use fuel pumps. They always tend to buzz but it might be a pressure sensor or similar causing them to prime at random times or maybe the bushes are worn down. Dunno Only other thing I can think of is a poor connection to the battery.

Don't think its likely to be ignition related, I would expect the pitch to change with engine revs, same goes for most mechanical items or air leaks.

Always worth checking any relays.

[SneakyPete]

[Ichy]

Just thought of another one. Check the fuel filter is clear and the pipe from the tank is flowing fuel ok, it might be restricting the flow of fuel to the pump.