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IGNITION COIL WIRING

Started by Pete D, August 01, 2015, 07:58:15 PM

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Pete D

Thanks Jeff.

Leads arrived this morning; what a bargain - didn't expect the full leads and connectors for that price...

Fingers crossed that new kit sorts my cylinder dropping out.

Pete

Miti

Good news Pete;

The only snag with these silicone leads, in my experience, is resilience to damage...  Their lack of it...

When I bought my V1000 it had very old leads and caps and one of the caps was a right-angled fitment - clearly not suited to the deep recesses the Hesketh plugs live in...

I bought a set of leads online (a brand no longer available) and, due to other issues with the bike, these were on, off, on, off, on - like a 'whore's drawers' (if you'll pardon my colourful metaphore...)

I ended up damaging the rear cap - I can't get my fat fingers in at the rear plug and have to use pliers - latterly, I managed to pull the coil end terminal clean off the front lead (again with pliers).

So my bike currently has the same lead as you've just ordered on the rear cyl and a copper/NGK setup at the front.  I have a nice new silicone lead ready to fit (I actually took it with me to Spain, just in case) 'cos it arrived too late to fit prior to leaving and I ddn't want to break anything else while the bike was running OK...

The advantage of the silicone type leads is that they use a carbon based conductor which suppresses radio frequency interference, so additional suppression caps aren't needed.

Once you have new plugs and new leads fitted, the next thing to check are:

Security and cleanliness of the spade terminals on the ignition coils.
Security and cleanliness of the earth connection(s) on the Lucas Rita unit - It's rubber mounted and the earthing arrangements are important...

If it's the rear cyl that's 'dropping out' (like mine used to) there are other things to check, around the carbs...  Give me a call (website contacts page) and we can chat about it...

Jeff
1974 Triumph T160 Trident (New Project)
1981 Yamaha XS1100 Sport (Trike Project)
1981 Yamaha XS1100 Sport (Red Sport)
1982 Hesketh V1000 (Production/Development Engine)

Pete D

Hi Jeff

Thanks very much. It is the front pot that is dropping out. I'll check the earths/spade connectors etc before bleating for more help. Don't want to appear needy, albeit probably a bit late....

Cheers

Pete

Miti

#33
Here's how my Rita is earthed... Dunno if this is the 'standard' arrangement..?



Apologies for HUGE pic.  Hope it helps

And... IMHO, the quickest way to sort if a problem with a particular cyl is ignition related is to swap the leads over at the coil end.  This swaps everything except the leads and plugs

Jeff
1974 Triumph T160 Trident (New Project)
1981 Yamaha XS1100 Sport (Trike Project)
1981 Yamaha XS1100 Sport (Red Sport)
1982 Hesketh V1000 (Production/Development Engine)

Pete D

Hi Jeff

That's pretty much what mine looks like too. I have now fitted the new leads and plug, plus cleaned up the connectors all round. The Old Lady now runs smoothly, albeit I finished tinkering too late for a test ride....

Once again, thanks so much for your help; it is very much appreciated.

Pete


Miti

No problem at all Pete...

I hope you won't mind me sharing the photo you sent me..?  Your bike looks great and it's always good to see how other folk are doin as well as read about it...

Pete Dixon's V1000:



Jeff
1974 Triumph T160 Trident (New Project)
1981 Yamaha XS1100 Sport (Trike Project)
1981 Yamaha XS1100 Sport (Red Sport)
1982 Hesketh V1000 (Production/Development Engine)

Pete D

#36
Those new coil to plug leads and a complete fettle of all the coil wiring, plus yet another new plug appears to have done the trick. 50 miles on the Old Lady today.....and smoothing up after every mile.

The carburation is undoubtedly not spot on yet.....but she starts easily, runs exceptionally well above 2500RPM right up to the red line and only occasionally 'fluffs' between 2000 and about 2300...

The oil leaks seem to be gradually reducing too.....

Only downside........the weather is going to change for the worse.....

Standing by for the next 'spanner in the works'...but I think you might be in danger of me joining in next year with a bike I can rely upon...

Cheers to all who have been so helpful.

No worries at all about posing the pic....it will never be a show bike, but works for me.

MICK

And the chokes are properly on their seat ;-)

The iridium plugs will not be any better than a standard new plug , they are better for extending the time you need to look at them when its running correct, my bike had them in for years without inspection .

Funny story time, sold a bike to a French enthusiast who turned up in ordinary cloths , bought a cheap helmet and set off home in the middle of winter with plastic bags around his feet.
A day later he phoned from his sisters in Paris having driven through London in the cold rain to say how proud he was of the bike and wonderful it looked in the Paris street but he was expecting a little more performance.
Well after a long conversation it transpires that he did not realise the bike had two fuel taps.
Result was another phone call from the happiest French man I have ever come across. He went on to become a very good fiend and a great character with an intense love for the Hesketh bike!

Enjoy

Pete D

Well......the front pot has dropped out again.....so new coil has just arrived and I will fit over the Christmas Break; hopefully, that will 'nail' it!

I wanted a bike that I could fettle, and this one is certainly 'challenging'!

Pete

Miti

Hi Pete;

Did you try swapping over the leads at the coil ends and seeing if the fault mover to the rear cyl..?

Just a thought.  Have fun  ;D

Jeff
1974 Triumph T160 Trident (New Project)
1981 Yamaha XS1100 Sport (Trike Project)
1981 Yamaha XS1100 Sport (Red Sport)
1982 Hesketh V1000 (Production/Development Engine)

Miti

I posted up some new developments on this here:

Jeff
1974 Triumph T160 Trident (New Project)
1981 Yamaha XS1100 Sport (Trike Project)
1981 Yamaha XS1100 Sport (Red Sport)
1982 Hesketh V1000 (Production/Development Engine)

Pete D

Jeff

Noted thanks..

Cheers

Pete

Vas

Hi guys,


I think i started this spark plug issue and I think I have the solution: DENSO X24ESR-U 4101 IT WORKS (AT LEAST FOR THE TIME) !!!!


Happy riding!!!