SOHC.co.uk Forums > CB500/550
rewire - what size/spec of wire
Ewan 500 K1:
--- Quote from: mickwinf on July 28, 2013, 10:38:58 AM ---Hondas of this age used a slightly smaller bullet than other jap bikes so don't fit very well. Most new ones are the bigger size so I replace both male and female together.
--- End quote ---
looks ,like I'll need to go with that then Mick, cheers. Least I'll get a handle on crimping by the end of it all ;)
Lobo:
Dunno how spec you want to be; but (eg) my '72 K2 & '77 400F both use 3.5mm bullet connectors. These are bloody hard to get, I've only ever managed to source them from the 'states. eg
http://www.ebay.com/itm/5-Male-Bullet-Barrel-Terminal-3-5mm-20-18AWG-Insulated-MB352018IN-/250988766833?pt=Car_Audio_Video&vxp=mtr&hash=item3a7018a671
Plenty of (UK) places stock the 3.9 or even 4mm bullets, and as you might guess..they don't mate too well with your elderly jap loom. Mick's suggestion spot on if not needing OEM.
Gotta say, I bit the bullet (ha!) and spent £30 on 'the business' crimping ratchet tool - worth every penny & a sheer joy to use: such a buzz to get beautifull crimped OEM type connections, versus (my soldering) which often melts the cables & ends up looking very DIY. (One problem of soldering is it tends to harden the wire, making it more susceptible to failing from vibration. Furthermore, any overheats (poor connections) can melt the solder & cause the connection to fail - tho' unlikely I guess in our 'bikes)
If you want to 'see' said crimping tool its in my previous posting's wire catalogue link, in the tooling section, or here ...
http://www.autoelectricsupplies.co.uk/product/746/category/87
Enjoy!
Cheers, Lobo
Ewan 500 K1:
--- Quote from: Lobo on July 28, 2013, 04:10:38 PM ---Dunno how spec you want to be; but (eg) my '72 K2 & '77 400F both use 3.5mm bullet connectors. These are bloody hard to get, I've only ever managed to source them from the 'states. eg
http://www.ebay.com/itm/5-Male-Bullet-Barrel-Terminal-3-5mm-20-18AWG-Insulated-MB352018IN-/250988766833?pt=Car_Audio_Video&vxp=mtr&hash=item3a7018a671
Plenty of (UK) places stock the 3.9 or even 4mm bullets, and as you might guess..they don't mate too well with your elderly jap loom. Mick's suggestion spot on if not needing OEM.
Gotta say, I bit the bullet (ha!) and spent £30 on 'the business' crimping ratchet tool - worth every penny & a sheer joy to use: such a buzz to get beautifull crimped OEM type connections, versus (my soldering) which often melts the cables & ends up looking very DIY. (One problem of soldering is it tends to harden the wire, making it more susceptible to failing from vibration. Furthermore, any overheats (poor connections) can melt the solder & cause the connection to fail - tho' unlikely I guess in our 'bikes)
If you want to 'see' said crimping tool its in my previous posting's wire catalogue link, in the tooling section, or here ...
http://www.autoelectricsupplies.co.uk/product/746/category/87
Enjoy!
Cheers, Lobo
--- End quote ---
Hey Lobo, being a cheapskate I went for the £9 crimper from VWP , seems to do the job oki doki. Looks like I'm heading for replacing everything with 3.9mm bullets , not arse aboout OEM really ... half the loom looks as if its off a 550 anyway it's got a wee diode in the nutral switch circuit (see diagram). The wore from the diode terminates in the headlight shell.. damned if I know wht it joined onto. ( i I labe all the wire end when I took it to bits, well err no actshully . The bike also has a 550 front end .. bit of a mongrel really.
Anyone know who sells the best quality 3.9mm bullets .. ?
ka-ja:
Hi,
If its anything like the 400/4 , one of the wires goes to the clutch lever switch, the circuit makes sure you cannot start the motor in gear without pulling in the clutch-----Ken
Ewan 500 K1:
--- Quote from: ka-ja on July 28, 2013, 07:20:07 PM ---Hi,
If its anything like the 400/4 , one of the wires goes to the clutch lever switch, the circuit makes sure you cannot start the motor in gear without pulling in the clutch-----Ken
--- End quote ---
ha, that could be it .... reduntant wire from 550/4 loom as the 500 doesnt care whether the clutch is in or out ... as far as I remember ! In fact that must be it Ken.. looking at the 550 circuit diagram in the clymer manual ... the wire for the clutch switch is green and red like the one that comes from the diode to the headlamp shell in my handrawn diagram ... funny thing is the circuit diagram doesnt show a diode. Picture of the diode attached.
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