Zircon

Okay i said id write on here as soon as i managed to fix the problem. I spent a good day changing the crank seal on the bike ( was an absolute biatch to get out ! )and it didnt really make much difference maybe 1 or 2 thousand revs . However after importing a High speed racing coil from Germany , the bike ran perfectly again ... picked up revs silly fast! and ran quicker then i think she ever has before ! Thanks again guys for the time you spent in helping me with my problem . I hope this can be a help to anyone else having similar problems. Many thanks Jordan p.s. Feel free to mail me on [email protected] for where i got parts etc

While waiting for the correct coil to arrive , I thought id change the oil , ( I guess if the seals have gone there would be less then normal in there ) although the oil level seemed to be fine , there seemed to be a strong and distinct smell of Petrol from the oil itself. I wonder if this could be a sign that the seals have gone ? Many thanks Zircon

Thanks for the advice , If you managed to get it sorted let me know what was wrong .... ill keep you updated on whether the seals or coil works many thanks Jordan

Thought id keep you guys updated. Had the new coil come today ... only to be the wrong one ! Dammit . Sent it back and hopefully will have the new one within a couple of days. I explained the problem and he said he'll throw in a few crank seals just in case, kinda his way of saying sorry i guess ! Need to get her fixed before long ..... Ive applied for a Apprenticeship at Superbyke in Bristol ..... Fingers Crossed. , Zircon

Just realised how stupid that was ..... Maybe i should just get a B9ES plug ... did some reading about and having resistor caps and plugs can reduce fuel consumption by 10% Zircon

Im gonna order a new Coil and cap ... i don't really know which cap id need as it doesn't need to be resistive .... By typing the YB05F into google i find that it has a 14-18mm thread ..... although im finding it difficult to find a non resistive one of these :\ Will somewhere like halfords have them ? Thanks Again Zircon

ahh just saw on the side of the cap YB05F 5K ohms

Just tested it again with the cap off , primary coil still reading 0.4 ohms Secondary coil now reads 8.09 K ohms The bike uses BR9ES plugs.... and an NGK cap .. don't know if that helps . Cheers, Zircon

I had this problem on my bike , theres no fuel filter on the bike at all and i found allot of crap in the bottom of the tank . try taking a look at whether that helps ... if so , TNT make some in-line fuel filters Hope this helps

Just got the Coil off the bike and it looks like the original coil , the resistance seems to be almost double what it should be ( according to the manual ) Primary coil was 0.3 - 0.4 ohms and the Secondary Coil was 13.3 Kilo Ohms Ive found a replacement here http://www.wemoto.com/bikes/MBK/TZR_50_X-Power/03-09/picture/Ignition_Coil Although this looks completely different to mine which looks more like this http://cgi.ebay.co.uk/YAMAHA-TZR50-TZR-50-2004-IGNITION-COIL-3856_W0QQitemZ180627528819QQcmdZViewItem?rvr_id=222574873283&rvr_id=222574873283&cguid=c491523612d0a0aa15238c33ffd15494#ht_971wt_905 Dunno if this orange one would still work , as the screw holes i think are the earthing terminals for the coil ( on the original one ) unless it just has the wrong picture Thanks For all the help guys ... saved me allot of time and stress ! Zircon

The only other resistance specifications i could find in the manual was one for the STATOR COIL which is supposed to be 0.4 - 0.6 Ohms at 20ºc and the CDI which has a charge coil resistance of 0.36 ohms + or - 20 % ( the manual i got is a PDF and i searched for "resistance" ) Cheers Zircon

Spent allot of time using multimeter in A level physics so should be able to figure it out The puzzling thing is , on the Workshop manual for my bike it states PRIMARY COIL RESISTANCE: 0.23 W +20ºC SECONDARY COIL RESISTANCE: 7.9 W Forgive me if im wrong but resistance is measure in ohms is it not ? possibly a miss type ? Cheers again guys Zircon

Is the pulse coil the ignition coil ? Ill take it out and have a good look ..... dont think it could be the earth cable do you ? Cheers again Zircon

Um she makes a rather horrible noise when she splutters , ( sounds a bit like its miss firing .. i know it cant be as its electronic ignition ) Ive tried teasing the revs up , helps a little , but not much maybe get and extra 500 rpm ? As for the coil , i read on another forum to hold the ignition cap a few cm form the frame........ and if you see a blue spark the coil etc should be fine .... no idea how accurate this is though ? i had a quick look at the coil itself ..... does look a bit battered ,,, dont think its ever been changed :\ Thanks for all the help guys, really appreciated Zircon

Just had a quick look for a breather pipe , couldn't see one ....... ill have a further look in the morning though Thanks again Jordan