Most motorcycle problems are caused by the nut that connects the handlebars to the saddle.

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brianh73
Newbie
Newbie

Posts : 2

no power

Post by brianh73 on Fri 23 May 2014, 2:41 am

Hey all! I just got a 1973 cb. looks great and ran great but.... I had just parked it in the drive way and had it running for a sec then it just shut off... like someone turned the ignition off.. The thing is, it will not start, not just start but it has no power. I put the battery on a charger for a few hours and still nothing.. new battery btw.. Could someone help me?   I miss riding my CB
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davetheworv
the 900
the 900

Awesome!
Posts : 452
Location : Birmingham

Re: no power

Post by davetheworv on Fri 23 May 2014, 12:37 pm

you have the older type cb500,if it is a twin it is a CB500T,if it is a four it is a CB500F. this club is for 1990s cb500s which are totally different to yours.  I am sure someone here will help you tho

muttley1
the 900
the 900

Posts : 752

Re: no power

Post by muttley1 on Fri 23 May 2014, 1:15 pm

HI,
 as said you have the 70's version of the cb500, this forum is for the (90's to early 2000's) one. Anyhow, your fault could be any number of things and as you've not had the bike long you don't know what the previous owner has/n't done I'd suggest splitting your checking into fuel and electrics.

So.. check the fuel first - Might be worth checking the fuel tap is working and you have a) fuel and b) the correct ron rating fuel if it does get through.
Old fuel left in carbs goes to varnish/sludge and the jets won't work. Cure is carb strip and clean.
Have a spark plug out and see if its damp after you try and fire the bike up. THis means fuel is getting through. Put the plug against the cylinder head and try and start the bike - it won't of course but if you get a big fat spark at the sparkplug then the electrics are ok. If not, look at the electrics - ancient wires, plug caps not on right, ingnition points.

Lastly, get a Haynes manual if you can, old bikes = ongoing spannering

atb

muttley1


Last edited by muttley1 on Fri 23 May 2014, 1:17 pm; edited 1 time in total (Reason for editing : detail)

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