TZR won't run for more a min

[hornetmike]

this is a fault i have with my 1990 tzr 125 ive had the carb apart and fitted new jets etc and cleaned it out fitted new plug and coil ,it starts fine but after a few seconds it starts to misfire a bit and as you can see it bogs down and will not rev up but it still ticks over



https://www.youtube.com/watch?v=d83uTlAs3Cw
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[N cee thirty]

you tryed it with the fuel cap open?
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[hornetmike]

yes tried with a temp tank hanging from celling.
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[hornetmike]

Its not a fuel supply issue all checked.

The only way I could get it to rev was by putting the circlip up a notch to the thord which drops the need down a bit. now it revs but back fires pops and bangs. Any ideas?
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[N cee thirty]

thats a timing issue then
____________________
'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[cb1rocket]

[hornetmike]

How do you adjust timing on a 88 tzr ?
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[cb1rocket]

if its CDI then there is not much that can be done, but its worth checking the timing to make sure its not out of wack. If you have the workshop manual then its useful to get a strobe light or similar to check the CDI is not playing up.

Was the bike running ok prior to this?

Have you tried fresh petrol, i meant proper fresh petrol straight from the pump and home straightaway and test it. Mine has water in it and it did exactly the same thing in my GP100, no power and would never run right!

Try a new plug and make sure its the correct one. Some new plugs are known to be duff from new! It can be electrical so make sure nothing is vibrating loose either and the cap on the spark plug is on firmly.

[andys675]

if its the timing it could just be the woodruff key, have you had the flywheel off lately?

[hornetmike]

thanks for replies turned out to be oil pump, school boy error not seeing that
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[Blau Zedong]