Honda CBR 250 Forum banner

1 - 12 of 12 Posts

·
Registered
Joined
·
14 Posts
Discussion Starter #1
Trying to get my 2012 250 started. Seems like it has no spark. I have the cluster on. Fuel pump makes very little noise when I turn the key on. No fuel coming out. Low on gas I’m sure. No key for tank or ignition. Also no spark. Does it need to sense fuel pressure to get spark? Wanna hear it run before I put more money in it?
 

·
Registered
Joined
·
1,786 Posts
Trying to get my 2012 250 started. Seems like it has no spark. I have the cluster on. Fuel pump makes very little noise when I turn the key on. No fuel coming out. Low on gas I’m sure. No key for tank or ignition. Also no spark. Does it need to sense fuel pressure to get spark? Wanna hear it run before I put more money in it?
How are you starting it without the ignition key?

Most have some sort of theft deterrent that is built into the ignition that will cut spark.

I'd also check the battery voltage. I'd drain the tank completely and fill with a small amount of fresh gas.
 

·
Registered
Joined
·
14 Posts
Discussion Starter #3
I got wired it. Only 3 wires. Didn’t think about a security thing. Don’t know how you could do that with 3 wires. I had to pull the fuel pump and put gas in the bottom of the tank. Don’t think I put enough in.
 

·
Registered
Joined
·
1,786 Posts
Typically there is a resistor in the ignition system somewhere that alters the voltage to the coils to prevent it firing when "hot wired".

I would expect that's the issue. Many aftermarket ignitions don't have it either, so you end up needing to add one in order for it to work.
 

·
Registered
Joined
·
14 Posts
Discussion Starter #5
Typically there is a resistor in the ignition system somewhere that alters the voltage to the coils to prevent it firing when "hot wired".

I would expect that's the issue. Many aftermarket ignitions don't have it either, so you end up needing to add one in order for it to work.
hmmmm. that makes sense. I will take the tumblers out of the ignition lock and re attach the wires and try again.
 

·
Registered
Joined
·
14 Posts
Discussion Starter #6
I repaired the key switch wires and took the tank cap out with a pry bar. Pulled all the pins in the key switch. Turned the switch on and the pump primed up and the spark is working. But it wont fire up. I think I may have flooded it by priming it several times.
 

·
Registered
Joined
·
14 Posts
Discussion Starter #10
Now its time to get parts for the rat. Tank, exhaust, headlights, tail lights, etc. I am parting out a 2001 vfr800fi to fund this build. I paid 200$ for the vfr. So far I have got my initial 200$ back and bought this 250r for 150$ and bought a few parts. (fuel line, bar, bar risers.) I want to get it on the road next season.
 

·
Registered
Joined
·
14 Posts
Discussion Starter #12
I used the factory key switch and got some fresh gas into it. It took several tries. I learned it will run without the gauges and the bank angle sensor. It will not run without the proper resistance on the green key switch wire.
 
1 - 12 of 12 Posts
Top