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20-03-2020, 01:29 PM | #1 |
Registered User
Join Date: Sep 2013
Location: Glasgow
Bike: S4 challenge
Posts: 447
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s4 coil sticks
Having issues starting the S4 after the winter. Even with a new battery I had to get a push start, eventually fired up however felt like it was running on 1 cylinder.
Purchased a couple of new spark plugs and was about to fit today, pulled out the coil stick from the front cylinder and think I may have found the problem...... Pretty nasty! I understand CBR600rr sticks are the same, can someone confirm please. Looking at this an Ebay. https://www.ebay.co.uk/itm/Honda-CBR...gAAOSwBYpd-h1c |
20-03-2020, 02:23 PM | #2 |
Transmaniacon MOC
Join Date: Sep 2013
Location: Sutton In Ashfield
Bike: Multiple Monsters
Posts: 6,085
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That;s fooked. I have heard the Honda and Suzuki ones work but have not tried it. I don't know if the part numbers are the same. I think there is a code on the top that you might be able to check.
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
20-03-2020, 03:33 PM | #3 |
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Join Date: Aug 2011
Location: Southampton
Bike: M1100evo
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This isn't an isolated problem and there are a number of threads detailing alternatives, (among which are indeed CBR600 coils). Have a look here:
http://www.ukmonster.co.uk/monster/s...ad.php?t=57637 And especially this one, which is also linked in the one above: http://www.ukmonster.co.uk/monster/s...ad.php?t=37946 Post #22 has a picture of a damaged coil, which looks identical to yours. |
20-03-2020, 04:27 PM | #4 |
Transmaniacon MOC
Join Date: Sep 2013
Location: Sutton In Ashfield
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I just searched Denso and there are loads and the couple that Luddite mentions are probably in there too.
http://www.ukmonster.co.uk/monster/s...archid=3093578
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
20-03-2020, 04:31 PM | #5 |
Transmaniacon MOC
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Do you jet wash your bike or do a lot of riding in the rain? It's probably a good idea to pull the coils out and dry out any standing water after washing or rain riding especially the front one.
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
20-03-2020, 05:11 PM | #6 |
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Join Date: Sep 2013
Location: Glasgow
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I blame the BSB round at knockhill, I had tickets for both days, if you remember the weather for the weekend it was biblical! I rode there and back and covered around 200 miles in the most atrocious weather, I don’t think the bike properly recovered. Anyway I’ll research the options. Thanks for all the replies and I’ll let you know how I get on.
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20-03-2020, 11:21 PM | #7 |
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Join Date: Sep 2014
Location: Preston
Bike: S4r
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That's mime Luddite points to on the 2nd link.
I replaced it with a Honda CBR600RR (04-07) Denso p/n 129700-4510 from ebay, you just need to swap the rubbers over. I now slap some silicone grease on the top rubber to get a good seal and keep the crap out. |
21-03-2020, 04:30 AM | #8 |
Transmaniacon MOC
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It occurred to me earlier that some grease or even vaseline would be a good idea. I'm going to do mine even though i dont jet wash or ride in all weather. That front plug is exposed to whatever the front tyre throws at it.
I have heard of some that swell so much they're really difficult to get out.
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
21-03-2020, 09:26 AM | #9 |
Old Git
Join Date: May 2006
Location: Cricklade
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I use Honda CBR 600 rr ones they are much cheaper same denso spec loads available online used
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21-03-2020, 09:40 AM | #10 |
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Thanks Jerry. So do you need to swap the rubber seals over or do the Honda ones fit the same?
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
21-03-2020, 09:42 AM | #11 |
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Looks that way Darren. I've just ordered a CBR stick from Ebay. It has a rubber seal, looks a bit smaller than the Ducati version. Just as well someone mentioned this, I had to dig the old one out from the bin to remove the rubber!
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21-03-2020, 10:09 AM | #12 |
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Oh God yea, never chuck anything away! Just have a box for scrap bits that you can scavenge should you need to. It was my rear one that started to break down but only when it got warm, cold it was ok. I suspect that it was originally a front coil and swapped over but I don't know for sure as they can fail from heat too as well as water ingress.
Thing that annoyed me most was the dealer who probably knew of the issue and the cheaper replacement options even suggested that I should replace both from Ducati just be sure. But at over £300 quid I not so politely declined that offer! Thank goodness for mass produced Japanese bikes and parts!
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
21-03-2020, 11:40 AM | #13 |
Fanactical volunteer
Join Date: Oct 2003
Location: Kent
Bike: M900
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When I did my custom s4 conversion back in 2008 my 2002/3 the front cylinder coil pack was like that after 5 years. Not huge miles either. It's the elements you can only keep out if you dont ride in rain or dont was with pressure. I nearly bought a honda one then but bought a secondhand pair for about £50 and sold one of the pair on.
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26-03-2020, 10:45 AM | #14 |
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Join Date: Sep 2013
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Still waiting for the CBR coils to arrive, in the meantime decided to have a look at the plugs......
Looks like the original champion plugs! Had a full DESMO service carried out last year at a main dealer, I would have thought the plugs would be changed as part of the service, obviously not. |
26-03-2020, 11:08 AM | #15 | |
Old Git
Join Date: May 2006
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Quote:
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