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stug

I'll download the 4c8 manual and have a look at the wiring diagram. It seems to me that something is happening when the engine starts that is turning…login to view the rest of this post

stug

I have been following the Haynes manual wiring diagram. The black/yellow comes from the ECU to the starter circuit and then on to the clutch switch. O…login to view the rest of this post

stug

Is there an extra black (?) wire on these from the ECU direct to a tag on the battery ground? You didn’t miss this when you had the starter out? Clut…login to view the rest of this post

stug

Is there an extra black (?) wire on these from the ECU direct to a tag on the battery ground? You didn’t miss this when you had the starter out? Clut…login to view the rest of this post

stug

Small update, the blue/white wire is now not important, I have traced this again and there is nothing wrong.
The problem wire is the black/yellow that…login to view the rest of this post

stug

I'll download the 4c8 manual and have a look at the wiring diagram. It seems to me that something is happening when the engine starts that is turning…login to view the rest of this post

stug

newsh wrote: ↑Sat May 02, 2020 8:41 pm Did the bike ever have an aftermarket alarm or immobiliser? These are the wires they would break into to disabl

…login to view the rest of this post

stug

So the last couple of days has seen me checking everything with a multimeter. Tough and slow going. My wife took pity on me and helped today and we me…login to view the rest of this post

stug

To test the brake light and balance the weight and looks on each side of the bike. The left has the gear changer.

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Headlights and indicators have their own fuses Im sure at the front of the radiator left hand side.

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Back to the original question, I am a middle of the road person and favourite R1 is the one I have owned for 13 years, the 5VY. Best looking R1 model …login to view the rest of this post

stug

I dont think you need the tax disk holder

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newsh wrote: ↑Tue Apr 28, 2020 7:57 pm
Moise wrote:Ah. It's not just a relay then.
Some kind of multi function thing, it probably needs several signa

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stug

I was connecting the battery positive to the red/black and the negative to the black/yellow. Then the multimeter leads go to the 2 blue/white which s…login to view the rest of this post

stug

its an r1... check the exup valve / cables All as they should be. The valve opens and closes when the ignition is turned on and is adjusted correctly…login to view the rest of this post

stug

I was connecting the battery positive to the red/black and the negative to the black/yellow. Then the multimeter leads go to the 2 blue/white which s…login to view the rest of this post

stug

I was connecting the battery positive to the red/black and the negative to the black/yellow. Then the multimeter leads go to the 2 blue/white which sh…login to view the rest of this post

stug

Either I am not using the meter correctly or the manual is wrong.
I tested my wifes 4C8 relay and got the same results, no continuity apart from the f…login to view the rest of this post

stug

So, multimeter turned up and I read the leaflet how to use it. Most of it is over my head but found the continuity setting which should be what I need…login to view the rest of this post

stug

The exup valves operate differently on different models. The earlier models do not cycle the valve when the ignition is switched on but the later ones…login to view the rest of this post

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Does it start from cold without the choke? My old exup starting being able to do this and I cant remember what fixed it. I done 2 things to it at the …login to view the rest of this post

stug

Thanks. I have ordered a multimeter and when it turns up I will start going through everything I can. I have a manual.

stug

R15UTT wrote: ↑Tue Apr 21, 2020 3:24 pm Just sawpost where you filled a 5 litre can. Sorry .

Yes but filling the can was done off the bike using a…login to view the rest of this post

stug

Boggy low down suggests the exup valve may be stuck open.

stug

Thanks Newsh I have just replied to Mark and gave him instructions. See how he gets on.
Cheers Mark

www.YamahaR.co.uk

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