Cylinder not firing
#1
Cylinder not firing
Hi Everyone,
I'm new to biking and have just bought my first bike. I'm a few weeks of my test and can’t wait to start riding.
I bought a CBR 600 F3 1996. I got it at a great price from a work colleague, it was his first and last bike, children came along and he stopped riding, it’s been in his garage and not used for around 3 years.
Anyway, here is the problem. Cylinder 2 doesn't seem to be firing, I did the spray test on the manifold pipes and 1,3 and 4 evaporated the water almost instantly, but 2 it didn't. It smouldered a little and eventually went.
So here is what I have tried so far. I thought a plug may have been down after being stood all that time, so I swapped all the spark plugs for new iridium ngk's. The problem was still there. I've tried swapping the leads over on cylinders 2 and 3 as they run from the same coil pack on the left side of the bike. 1 and 4 run from the right coil pack. This also made no difference.
There was some old fuel in the tank, so I filled the tank with new fuel, this also has made no difference.
Other things I’ve done to the bike include replacing the air filter with a K&N filter, new Castrol 10/40 semi synthetic oil and a new oil filter.
One thing I have noticed is that a liquid is dripping from the exhaust joint, it’s a slip on Micron can. I’ve smelt it but can’t make out if it just condensation or partially burnt fuel.
The bike starts first time and sounds great to me, it was a friend that’s into bikes that said he didn’t think it sounded right for an inline 4 and said it sounded more like a 3 cylinder or v twin! That’s what made us first check the manifold pipes.
I’m not really sure where to go from here, any advice would be greatly appreciated.
Thanks everyone.
Rob.
I'm new to biking and have just bought my first bike. I'm a few weeks of my test and can’t wait to start riding.
I bought a CBR 600 F3 1996. I got it at a great price from a work colleague, it was his first and last bike, children came along and he stopped riding, it’s been in his garage and not used for around 3 years.
Anyway, here is the problem. Cylinder 2 doesn't seem to be firing, I did the spray test on the manifold pipes and 1,3 and 4 evaporated the water almost instantly, but 2 it didn't. It smouldered a little and eventually went.
So here is what I have tried so far. I thought a plug may have been down after being stood all that time, so I swapped all the spark plugs for new iridium ngk's. The problem was still there. I've tried swapping the leads over on cylinders 2 and 3 as they run from the same coil pack on the left side of the bike. 1 and 4 run from the right coil pack. This also made no difference.
There was some old fuel in the tank, so I filled the tank with new fuel, this also has made no difference.
Other things I’ve done to the bike include replacing the air filter with a K&N filter, new Castrol 10/40 semi synthetic oil and a new oil filter.
One thing I have noticed is that a liquid is dripping from the exhaust joint, it’s a slip on Micron can. I’ve smelt it but can’t make out if it just condensation or partially burnt fuel.
The bike starts first time and sounds great to me, it was a friend that’s into bikes that said he didn’t think it sounded right for an inline 4 and said it sounded more like a 3 cylinder or v twin! That’s what made us first check the manifold pipes.
I’m not really sure where to go from here, any advice would be greatly appreciated.
Thanks everyone.
Rob.
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#7
Hey demon,
I was going to try and pick up a compression tester tomorrow, apparently they can be had from the local bike shop for around £10.
I'll keep my finger crossed the engine is good, or my nice cheap bike wont be so cheap lol.
I'm going to try and find a Haynes manual too so I can clean the carbs.
Rob.
Sprock, I inspected the tank when I first got the bike, its really clean, no rust at all and no sediment.
I was going to try and pick up a compression tester tomorrow, apparently they can be had from the local bike shop for around £10.
I'll keep my finger crossed the engine is good, or my nice cheap bike wont be so cheap lol.
I'm going to try and find a Haynes manual too so I can clean the carbs.
Rob.
Sprock, I inspected the tank when I first got the bike, its really clean, no rust at all and no sediment.
#9