Author Topic: Cold start problems  (Read 1269 times)

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Offline Peterengland

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Cold start problems
« on: November 18, 2013, 06:21:07 AM »
I have been having a few problems with the cold start now and I put it down to spark related. I noticed the plugs were NGK D7EA so I changed them to the proper (F2) D7ES and I swear it started before I hit the starter button! No choke need either and it's not too warm at nights here at the moment - about 4 or 5 c. Just goes to show the value of the correct plugs.

Offline Deltarider

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Re: Cold start problems
« Reply #1 on: November 18, 2013, 06:43:55 AM »
Personally, I think it has more to do with the condition of the plugs that were in there. The D7ES did not have a good reputation back then and dealers advised the more reliable D8ES-L. Fresh plugs can do miracles.
« Last Edit: November 18, 2013, 06:45:26 AM by Deltarider »
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Offline Duke McDukiedook

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Re: Cold start problems
« Reply #2 on: November 18, 2013, 06:58:20 AM »
What Delta said and if you don't need choke even when it is cool out odds are you are running a little rich.
On my K3 I always need choke and then immediately take it off when it starts.
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Offline Peterengland

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Re: Cold start problems
« Reply #3 on: November 18, 2013, 07:36:49 AM »
I don't think it's running rich as the old plugs were the 'perfect' colour when I took them out, certainly not the rich look, but I use the choke now for a cold idle but only after it's started.

Offline HondaMan

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Re: Cold start problems
« Reply #4 on: November 18, 2013, 08:48:28 PM »
I don't think it's running rich as the old plugs were the 'perfect' colour when I took them out, certainly not the rich look, but I use the choke now for a cold idle but only after it's started.

Maybe also check the resistor plug caps? If they are getting toward the ohms limit, or if they are unbalanced on a given coil (pair), they will cause hard starting and cold-blooded operation.

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Offline martin99

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Re: Cold start problems
« Reply #5 on: November 19, 2013, 01:04:03 PM »
Assuming everything else is stock Peter?

My F2 runs best on D7EAs, and I've tried lots of different ones. I am running pods though

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Offline LesterPiglet

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Re: Cold start problems
« Reply #6 on: November 19, 2013, 02:48:14 PM »
(My Ignition helps stop that, too.  ;)  )
Couldn't agree more.
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