Cbr600f2 not starting.

[Tamsin]

Some thoughts please guys n gals?

My 1992 CBR600F2 died on me at the weekend. The bike was hot enough for the fan to be on but the needle was nowhere near the red and it had been idling for 2 or 3 minutes after a 30min ride.

The bike cut out and refused to restart, the AA man diagnosed electrical fault due to no spark but didn't go any further before deciding he had no real idea and calling for recovery.

Immediate suspicion fell on reg/rec as it was rather warm but any other thoughts about what to look at or if I can bench test the regrec?

[Nobby the Bastard]

If the battery is showing a good 12.5 - 13 volts its not the reg rec.

If it isn't showing 12.5-13, charge it with a charger and see if it starts.

Then you can test it. The voltage should jump to near 14-15 volts when running at about 2-3k revs.

Was the starter turning the engine after it cut out?
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[Tamsin]

Starter was turning the engine as strongly as it ever did. I've not had a chance to get in and investigate yet, but hopefully tomorrow eve

[Nobby the Bastard]

[Tamsin]

Interesting thought.... will only be a few mins to pull the fuse box and see if there's anything there...

Update: all fuses are intact

[fatjames]

In this weather, I wouldn't expect it to take much idling to start the fan. Although, if it really wasn't hot enough, it could be the temp sensor. But that shouldn't stop it from starting (I wouldn't have thought?)

Sounds like a fuel or spark problem (I'm no expert!)

I'd be tempted to check the fuel first. Just to try and eliminate it. Does the f2 have a fuel tap? If so, make sure you're on the right setting. (and that you have fuel)

Open the petrol tank and close it again just in case there is some sort of vacuum thing going on.

Or is the choke in the wrong place?

Sorry if these things are too basic.

[haroman666]

Do these ones have a fuel pump?

Put your hand on the fuel pump and turn the key, if you don't feel anything then it might not be priming. If it primes then consider pulling the carbs and giving them a clean.

Check coolant level: if it was low and the engine got too hot then you might have compression issues now. (Unlikely though)

Check for spark: Easiest way to check is to pull a plug, and earth it against the bike.

You need fuel, air, compression and a spark for an engine to run. Check these rudimentary things first.
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The mistresses: 2000 Honda CBR600f, 2000 Honda VTR1000

[Suntan Sid]

[Tamsin]

I like how you are all saying it's lack of fuel...

The original post says that there was NO SPARK

Weirdly though, I came to look at it today (I've done literally nothing to it since it was revovered) and it started fine.... I hate that kind of thing, going to be permanently on edge for a repeat performance now

[fatjames]

[Tamsin]

I think an AA man can be trusted to use a spark tester... lol.

I'm busy as busy gets over the next few days so just running round locally to replicate s fault isn't really an option at the mo.

[Jefr0]

[Qyburn]

Worth checking the fuel pump because these bikes will run fine with a dud pump until something upsets them and then they need the pump to prime the system. In my case once the bike fell over, then simply wouldn't start until it had sat for a day.
____________________
Lord Qyburn

[Tamsin]

[Nobby the Bastard]

Loss of idle when hot is symptomatic of an air leak between carb/throttle bodies and the inlet.

The spunkless one wouldn't have considered that and so his bike has been stalliing when warm for years...
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[Suntan Sid]

[Jefr0]

[Octapode]

Did it backfire at all before dying, or just shut off? You could be looking at a half-dead CDI giving you a weak spark.