Since drop, it wont start! help?

[Thom]

Im sorry for constant posts im learning this whole mechanics thing the hard way!

some of you know i recently dropped my nsr 125, no damage done as far as im aware, the fuel boat thing must have gotten stuck as the fuel overflow was leaking. i've sorted this now and no more overflowing.

my problem now is since "fixing" the problem i've only managed to start the bike twice for a very short time before i killed it.

but i now cant seem to get it to start.

What could be the problem, i did have conerns that i may have pinched the fuel line when re connecting it to the tank but im not sure.

It turns over fine it just wont fire up, as if its cold?

any help appreciated!

[ZaphodBeeble]

Check your spark plug. Take it out of the engine and put it in the plug cap. Rest the metal part of the plug on the head of the engine and crank it over. If it's not sparking then you could have a dodgy coil, plug or cdi unit etc. I doubt it would be this but its the easiest thing to check.

Best thing to do is to tap the side of the carburettor with a piece of wood (so not to damage the carb); maybe the floats are stuck shut.

Also when you take out the plug have a look at the colour, if it's dry and biscuit brown then its been firing ok but that would also indicate that no fuel is getting through. If it's wet with fuel then you obviously have a spark problem, hence the test above.

Good luck ,

Z
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Current bike: VTR1000F Firestorm. Previous: Firestorm (written off) - XJ600 Divvy - NSR125 - DT125 and a load of offroaders.

[Thom]

thanks for the advice ill try it after college =]

im glad im learning these basics on this bike rather than a £3000 thing!

[Cigaro]

Did you manage to get it sorted?

[ms51ves3]

Could be fuel on the plug. As you've only ran it for 2 short periods it won't make it easier to start.

Mark

[pa_broon74]

Ummm...

Maybe check your choke hasn't jammed open... Not sure though, I had an issue where to much air was getting in due to a couple of missing bolts attaching the carb to the cylinder, tiny gap but enough for it to cause problems. When ever I put the choke off it would cut out.

Perhaps in this case, if too much air is getting into the mixture, it won't start at all.

Good luck.
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Didn't catch anything.

[Thom]