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Honda GSV 530

Started by Shortgrass24, May 13, 2024, 04:38:50 PM

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Shortgrass24

My first plea for help, so be gentle..
I have a Honda ride on, left here by a friend after selling their nearby house. It did work, but has been stored for about a year.
Put some fresh petrol in and battery. Doesn't want to start, so looked at the usual, but found that there appears to be no spark after I put a spare plug onto one lead.(plug works, checked)
Now, I always assumed that the leads off the ignition coils from such small engines were earths, to stop them.
So I disconnected them, but still no spark? Tried to check the switch wiring and that agreed with the earthing idea.
So, bit puzzled. One coil might fail, but both? Looked on line for wiring, but diags don't help much.
SG

Mick

Hi Shortgrass24, and welcome to TGMF

Those Honda's are notorious for coils dying, but like you said not normally both at the same time unless there was a major wiring fault on the machine.

As you said, the thin wire from each coil does the job of stopping the engine when grounded.  That wire is split into three via a diode module between the coils.

The engines are also very fussy on spark plugs, I have seen plugs that spark on one engine and not on another. So if it hasn't had a new set for a while I would try that first before throwing money at coils. Also make sure it's getting fuel, especially as it's not been run for so long.

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Shortgrass24

Thanks Mick
I will go over the fuel system and try fresh plugs.
SG

With my walk behind B&S powered also u/s at the mo, I am beginning to think sheep might be an idea....

Shortgrass24

Hummm, tried disconnecting the coils earths, in case it was the diode unit. Big spark! But after reconnecting, still sparked?? ight look closely at the ignition switch..
Then looked at fuel and it appears that the fuel pump had a siezure, but is now supplying, so had it running for a minuit. Grass is cringing with fear for tomorrow!
Also have a Countax with the three cutter deck, some progress with that on ignition, so will look at fuel next, though I had cleaned the carb recently..
SG

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