Ingah Posted June 13, 2011 Posted June 13, 2011 The inevitable has finally happened - the CB500 has another issue!Got to work (~10 miles), headlamps on bright.Lights dim (especially dashboard lights), starter motor turning over sounded unhealthy/slow.Textbook reg/rect fault.I've heard you can get ahold of / use a better / more reliable type of reg/rect as Hondas have always had poor ones, so i was wondering if anyone knows anything about them? (happy to spend money on this bike's reliability as it's clearly not had enough TLC to make up for the years of abuse yet!) Quote
Guest Posted June 13, 2011 Posted June 13, 2011 take it to the nearest scrap yard or you could try what boothy said lol Quote
eastanglianbiker Posted June 13, 2011 Posted June 13, 2011 think you will find that the superdream ones can be modified to fit,normally on the old suzuki gsx range the superdream is cure for same problem Quote
Ingah Posted June 13, 2011 Author Posted June 13, 2011 Cheers eab - looks like i'm going home recovery truck style tonight On the upside new shocks / fork oil / pads / etc have all arrived, so i can give the bike lots of much needed TLC. Quote
Guest Posted June 13, 2011 Posted June 13, 2011 have you maybe thought it be cheaper in the long run to buy a newer and more reliable bike ? seems like you spend forver fixing this one. i however cant talk Quote
Colin the Bear Posted June 13, 2011 Posted June 13, 2011 It may not be the reg/rect that is poor, it may be the positioning not allowing enough airflow for cooling. I don't know if the CB forums are still going but if they are those guys would know. Quote
Ingah Posted June 13, 2011 Author Posted June 13, 2011 have you maybe thought it be cheaper in the long run to buy a newer and more reliable bike ? seems like you spend forver fixing this one. i however cant talk Yes i have, hindsight being a wonderful thing and all because i've already spent the small fortune! With regards to your bike, as i've warned you, get out whilst you still can!And good call colin, will check out those forums tonight.Doing some overtime at work right now (the best kind right now, waiting for instructions ), and then tomorrow looks like it's "fix the CG and CB" day! Wish me luck, else there be much smashing going on when i lose my temper with the CB Quote
whitedevil Posted June 13, 2011 Posted June 13, 2011 I fitted an electrex reg/rec after mine failed on my cbr. It was a bit costly but does come with 12 months guarantee. It also hardly gets warm whereas my old one used to get to hot to touch.If you decide to get one from another bike like an R1 etc you will need to cut off the connectors and solder on the ones from your old reg/rec. Quote
rennie Posted June 13, 2011 Posted June 13, 2011 talk to David Silver spares!they do all things Honda both genuine and aftermarket.I swapped reg/recs on both my vfr's and the bladefor ones with heat sinks on.also, as already said, look at moving it to somewherecooler.if it bolts to the frame make sure you've gota good contact so that frame acts as heat sink.They often come with jointing paste, if so use it.you need to check, with a volt meter, to make surethe fault is the reg/rec first!It nearly always is but you need to be sure Quote
Fozzie Posted June 14, 2011 Posted June 14, 2011 Why not just put it somewhere where its got plenty of air flow and then build a small low voltage computer fan or similar onto it. That might keep the temp down...Or get one with a heat sink, thats probably easier i just thought my idea was cool Quote
Ingah Posted June 15, 2011 Author Posted June 15, 2011 Why not just put it somewhere where its got plenty of air flow and then build a small low voltage computer fan or similar onto it. That might keep the temp down...Or get one with a heat sink, thats probably easier i just thought my idea was cool I've heard about this before. As i have ordered an "ordinary" reg/rect (could not be bothered with modifying something to suit), with fins in the hope that this will improve cooling, i'm seriously considering this computer fan idea, which i've heard before. It would prevent me having to move the reg/rect, and i have old unused computer fans i could use. It'll be the route of least resistance, i suspect.Have you got anything to guide me in the wiring of the fan, keeping the voltage etc down to what the fan expects so that the fan doesn't blow up on first use, or spin at some kind of crazy loud speed due to the sheer oversupply of electricity to it?While i'm messing with fans, i'll probably wire my radiator fan at the front of the bike to be "ON" constantly too (the switch is unreliable and relatively expensive to replace), so my bike may end up sounding like a desktop computer! Quote
Stu Posted June 15, 2011 Posted June 15, 2011 put your fan on a switch dont leave it on constant you will burn the motor out eventually Quote
Ingah Posted June 15, 2011 Author Posted June 15, 2011 I take it they're not as well made as computer fans then? (Why can i feel a "large computer fan" bodge job for my radiator fan coming on at some point in the future? )Edit: Or better yet, perhaps i can affix a large computer case fan on top of the current intermittently-working fan and just leave it how it is otherwise Quote
Fozzie Posted June 16, 2011 Posted June 16, 2011 Id attach a digital temp sensor read out on the dash and have it along side a fan switch. Work out from day to day use where performance starts to suffer due to engine heat and then flick it on when you need to. And wire it through the ignition so that it switches off automatically when you turn the bike off. I like bodge jobs Though if there was a way of measuring oil temp then you could use that to flick at fan on when it hits 100 degrees like some bikes. My RR used to flick at 106 and hit the fan on. Quote
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