Hi I am new to this forum , i bought my girlfriend a super four ( resprayed and a full titanium system fitted )

only problem with it is the battery is good but after a few days it starts to play up and not start , it bump starts ok but use any electrics and she dies even brake lights . charge the battery up and its fine for another few days . i have been thinking it may be the generator any ideas would be gratefully appreciated .the battery is checked and ok but i am not sure how to check the generator output . i have got a multi meter

Measure the voltage at the battery terminals with the engine running. It should read 14.5 volts or thereabouts. If it's a lot less, it's almost certainly the regulator/rectifier but could be the generator.

If you have the translated Russian CB-1 / CB400 manual there's a troubleshooting guide for the regulator/rectifier (you measure resistances between pins and compare readings with those stated in the manual). If you don't have the manual, PM me with your e-mail and I'll send you a copy.

This thread should help you check the rest of the charging circuit, including the generator outputs:

http://www.400greybike.cc/newforum/view ... =32&t=2260

It's always worth searching the forum before asking questions of a technical nature, as lots of topics have already been covered on here.

Best of luck!

http://www.electrosport.com/technical-r ... -guide.php" onclick="window.open(this.href);return false;

Enjoy :)

thanks everyone . just checked and it seems like it could be the RR so i just have to source one
Cheers :D

Cheapest reg/recs I could find when I was looking a few weeks back was from Germany via ebay. Link is on that other thread I pointed you to.