Fuel, air, spark, but no bang!
Posted: Wed May 07, 2014 1:29 pm
Hi guys
My ZXR 400 L9 model won't start any more. When I first got it, it was a bit of a pig to start. Full choke, bit of throttle and a couple of attempts at cranking and it would go, but this morning it was having none of it. Looks like a day in the garage then.
I checked all the plugs, they looked fine. Had a tan colour and was a bit wet (meaning there was fuel going in). I cleaned them, tested for spark and chucked them back in. All good.
Tested the fuel pump anyway, cranked her with the pipe to the carb out and spat fuel out of it. Nothing wrong here. Put my hand over the carbs while it was cranking and it was sucking the air like it should.
Now what's left to check is the carbs, timing and valve clearances. They should all be fine though as the previous owner had the carbs cleaned and balanced by a garage, as well as the clearances checked. I can't imagine any reason why the timing would be out. I also checked the battery for good measure. It was at 12.4v with the bike off, and dropped to about 10.6v while cranking.
Have to say I'm at my wits end here, no idea why she wont fire up! She runs perfectly when warm.
Thanks for reading, hope one of you can help me
My ZXR 400 L9 model won't start any more. When I first got it, it was a bit of a pig to start. Full choke, bit of throttle and a couple of attempts at cranking and it would go, but this morning it was having none of it. Looks like a day in the garage then.
I checked all the plugs, they looked fine. Had a tan colour and was a bit wet (meaning there was fuel going in). I cleaned them, tested for spark and chucked them back in. All good.
Tested the fuel pump anyway, cranked her with the pipe to the carb out and spat fuel out of it. Nothing wrong here. Put my hand over the carbs while it was cranking and it was sucking the air like it should.
Now what's left to check is the carbs, timing and valve clearances. They should all be fine though as the previous owner had the carbs cleaned and balanced by a garage, as well as the clearances checked. I can't imagine any reason why the timing would be out. I also checked the battery for good measure. It was at 12.4v with the bike off, and dropped to about 10.6v while cranking.
Have to say I'm at my wits end here, no idea why she wont fire up! She runs perfectly when warm.
Thanks for reading, hope one of you can help me