Honda mtx no spark / temperamental neutral light

[Ruar3b]

I've recently bought a honda mtx 125 and have put new cdi new battery and new wiring loom into the electrical system , I have put the bike together and I have no spark at all , and also the neutral light doesn't seem to come on , unless I give the kick start a few kick it will flicker then come on but then I kick it again it will go off ! Any ideas on what the problem is ?

[69chris]

whip off the tank and check the connections where the engine loom joins the main loom (l/h/s of the frame)
these can corroded and often need some 'patient' cleaning out
mine was doing a similar thing and the above, and cleaning the earth connections seemed to sort it ouf

[Ruar3b]

Thanks for that , I've noticed the earth was dodgey because when I moved it about the light would flicker on and off , maybe it's not earthing because I've painted the frame ? Also did your bike have no spark because of this aswell ?

[69chris]

yes mine had no spark untill i wiggled the wiring at the point of the connectors, then it started straight up,
i still had no headlight untill i stripped and cleaned the connectors tho,
they looked clean enough but infact had a clear'ish coating of...... something yucky on them, some tarnish type crap that i had to gently scrape off with a blade, then clean with fine sandpaper,

good luck mate

[Vincent]

[Ruar3b]

Hi there I've got the neutral light working by cleaning up the wiring , I've still got no spark though ! Any suggestions as to what could be the root of the problem ?? Thanks

[at106]

If you painted the frame remove some of the paint so that the CDI mounting points mount to the bare metal frame. Also make sure that the engine is earthed.