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cNw electric start on a 920cc Commando engine.

Discussion in 'Norton Commando Motorcycles (Classic)' started by Fast Eddie, Aug 21, 2019.

  1. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    I thought I’d post this here as I know not everyone reads the rebuild forum (where the nerds hang out).

    I recently finished my latest incarnation of the Trident Hunter: 920cc, 10.95:1 compression ratio, Maney cases - crank - race cam - stage 3 head - etc. I also fitted a TTI gearbox.

    I knew it was going to be somewhat difficult to start. Unfortunately I was more right than I realised. Whilst you could occasionally get lucky, generally speaking it is incredibly difficult to turn over. I fitted total seal rings too, which don’t help. Kick starting became quite a theatrical affair. It always drew a crowd. And we all know Sods Law which dictates a direct link between number of observers and likelihood of the thing not playing ball...!

    I’m over 200lbs, and the effort I needed to put into kicking it over had me genuinely worried that the kickstart, or something, could fail mid kick, probably putting me in A&E!

    This was all beginning to detract from the enjoyment of the bike...

    So, after some chats with Matt, I decided to invest in something I’d long admired, one of his cNw e-start kits.

    First impressions when opening the packaging was WOW! Such attention to detail and exquisite quality.

    Due to my bike being so far from stock, fitting was quite an involved job, but I got there in the end. All along I was quite apprehensive, after all, I knew just how dammed difficult it was to turn the engine over, would this kit be man enough?

    Well, the day came when I’d got it all fitted and wired up. No more putting it off. Gotta give it a go....

    WHIZZZZZZ - ROARRRR !

    It spun the bloody thing over as if there were no spark plugs in! I was seriously impressed!

    Overall fitting was really quite straightforward, that doesn’t mean simple as it’s quite a big job. But so long as you read through the very detailed instructions a few times, allocate enough time, and get your brain in the right gear, it’s all fairly straightforward.

    The kit is clearly made by someone who has fitted many himself, everything is thought of and allowed for. And if you are unsure in any way, Matt replies to emails very quickly, politely, and helpfully.

    Overal, a seriously impressive piece of kit.

    I’m well chuffed.

    B1FD86E1-4DCE-4F13-A411-2420F27BB8F0.jpeg 78085B00-6102-45A1-8F27-79EE1BB00141.jpeg FB4A41C3-B088-4219-B201-264B86EDD5BF.jpeg C8375637-8986-46E5-9A2F-7CAF93A6B32D.jpeg
     
    worntorn, Jerry Doe, Reggie and 7 others like this.
  2. acadian

    acadian VIP MEMBER

    Joined:
    Mar 5, 2010
    Eddie, your bike is beyond words

    Edit: what happened to that trick, custom primary cover?
     
    Last edited: Aug 21, 2019
    Fast Eddie likes this.
  3. baz

    baz VIP MEMBER

    Joined:
    May 26, 2010
    My god Eddie
    Think of all the weight you have added to the bike!!!
    You should do what I do and carry a 12volt paddock starter with you
     
    Fast Eddie likes this.
  4. maylar

    maylar VIP MEMBER

    Joined:
    May 13, 2007
    I'm certainly lovin' mine. Click - vroom.
     
    Fast Eddie likes this.
  5. gtiller

    gtiller VIP MEMBER

    Joined:
    Nov 5, 2012
    Great job Nigel - the black plays it down too.

    ...you are as OCD as me though, so i assume you'll put some black heatshrink over that red connector?
     
    Fast Eddie and baz like this.
  6. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Seriously Grant!?

    That connector bothered me immensely, but I thought “no one else we even notice... stop being so anal...”

    Bet that’s why I didn’t sleep well last night.

    Should sleep better tonight...

    227124EA-2133-48F4-A0C0-84BECB89F6E3.jpeg
     
  7. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Baz, I’ve spent my years hitherto removing perfectly good electric starts from Brit bikes! So this is not my normal direction.

    The weight aspect has not passed unheeded...

    The centre stand has already come back off, there’s 5lbs.

    Next will be the kick start and inner gearbox cover related internals.

    If my estimations are correct, when I’m done, the net weight gain will be around 9-10lbs.

    That’ll make the bike 379-380lbs wet. Still 7-8lbs lighter than it was as an 850.

    I could save approx 1.5lbs by using a smaller Shorai battery, but that seems a small saving for a big loss of peace of mind. At the moment at least.

    FWIW, I reckon anyone fitting this kit to a stock bike with chain primary and bronze clutch would probably have a net weight saving...
     
  8. gtiller

    gtiller VIP MEMBER

    Joined:
    Nov 5, 2012
    @Fast Eddie we'll all rest easy now!

    MUCH better!!! ;)
     
  9. Danno

    Danno

    Joined:
    Feb 7, 2010
    If anyone told me I could have any bike on this forum, you'd be building yourself another.
     
  10. baz

    baz VIP MEMBER

    Joined:
    May 26, 2010
    Yep I know the feeling as everything I did to my commando was to save weight (unsprung and sprung) but with a heavy heart and a knackered knee I fitted an Alton starter
    I don't notice the extra weight to be honest but my brain knows it's there
    Cheers
     
  11. Danno

    Danno

    Joined:
    Feb 7, 2010
    That's what Kevin Atherton does with his XR750 streetbike. It's amazing how much power a handful of electric motor can produce.

    [​IMG]
     
    Last edited: Aug 21, 2019
    MichaelB likes this.
  12. baz

    baz VIP MEMBER

    Joined:
    May 26, 2010
    I was joking actually
    But I have seen that before on the Harley, it does look good
     
  13. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Thanks.

    Don’t think I could go through it all again tho !
     
  14. Deets55

    Deets55 VIP MEMBER

    Joined:
    Oct 3, 2013
    As always, exceptional job. Good going Nigel.
    Pete
     
  15. Danno

    Danno

    Joined:
    Feb 7, 2010
    He carries the starter motor in a back pack. It's about the size of a grapefruit.
     
  16. baz

    baz VIP MEMBER

    Joined:
    May 26, 2010
    Is it the one with a square drive built into the chain case ?
     
  17. trident sam

    trident sam

    Joined:
    Oct 23, 2012
    The bike is just stunning and I echo what Danno has said about it.
    I hope you've sent a picture or two to Alan.
    sam
     
    baz likes this.
  18. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    I have now Sam!
     
  19. jan nelder

    jan nelder

    Joined:
    Feb 18, 2018
    well done, obviously had your brain in TOP gear!
     
    Fast Eddie likes this.
  20. trident sam

    trident sam

    Joined:
    Oct 23, 2012
    that's good thanks.
    I'll see him next week
     
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