Question about 1987 Honda CBR 600 F Hurricane
The speed sensor next the starter motor
sends a voltage pulse to the speedometer.
If you can get at the connectors
just down from the speedo you can
check for this pulse.
Block the back wheel off the ground.
Unplug the connectors and hook
a volt meter to the pink/green +
and the green/black - wires
on the harness side not the speedo side.
Turn on the key and then
check for a 0-5 volt pulse
when you turn the wheel forward
If you have a pulse the speed sensor
is likely okay and your speedo
circuit board is faulty.
If you get no voltage pulse then you have
to check the pulse closer to the
speed sensor or check the connectors
and wires for faults.
No pulse can be a faulty speed sensor
or just a bad connection.
Have you checked the fuses well?
Posted on Sep 10, 2009
Try to see if it"ll push start first.....if if does you might have carb problems.
get it push started and run 1/3 of a bottle of sea foam to two gallons of gas.
if this dont work you:ll probably have an intake leak,,,,,check the hoses going from the evap-systems); purge vale ....
i"ve found mine old and cracked,once i had found the hose had slipped off the carb fitting.
Posted on Sep 13, 2009
Do you have both fuel and spark??
After you have turning over the engine for a while, unscrew a spark plug and see if it somes out wet with fuel on it.
Take out one of the spark plugs, plug it back into the sparkplug lead and hold the lower metal part of it against the metal engine (hold onto the rubber spark plug lead while doing this), now turn over the engine and see if there is a blue spark between the spark plug gap.
Posted on Jul 25, 2009
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Posted on Jan 02, 2017
SOURCE: bike wont turn over
I have a 1996 cbr 600 f3 and when I first bought it used it would not turn over for the life of it. It turned out that a major problem was the spark plugs needing to be replaced. Thats the first thing to do. Next clean out those carbs with some good carb cleaner.
Posted on Nov 10, 2008
Check your plugs. If all four are sparking then your carbs are out of sync. They will need to be re-balanced.
If you are capabable in doing this job your self, you will need a screwdriver that fits your adjuster screws and a CarbTune Carb balancer.
Remove your tank and airbox.
You should see the flaps inside your carbs. These should open when you move your throttle.
Start on the outside carbs to get them balanced with the 2 centre ones.
To start, unscrew the adjusters all the way out. then screw them in until the 2 outer carbs move at the same time as the inner 2 carbs
Once this is done then adjust the centre balancer to syncronise the 2 left hand carbs to the 2 right hand carbs.
Now if you have done this correctly, all four carbs should open at the exact same time.
If you have a Carbtune balancer, remove the plugs from the top of your inlet manifold and plug in the hoses from the carbtune balancer.
Start the engine and adjust the screws until the weights inside the Carbtune balancer all read the same.
Once done, remove the balancer, replace the plugs into the inlet manifold, refit the airbox and tank and it should run so much better.
If your not 100% confident to unertake this job yourself, take the bike to your local dealer and ask to have the carbs balanced.
Posted on Mar 15, 2010
check fuses for head light..check battery to insure >12.4v minimum! if not correct voltage you may have a cell going bad...take #1 spark plug out hang it to side of frame crank..does it have a big bluish spark? if it looks redish purple no good..pulse generators need to be ohmd out for opens.
if you"ve got "Good Spark" and "Good Voltage" push start the bike!
if it runs... but runs crappy then its a fuel issue which a can of Sea Foam from Autozone will cure $10 pour 1/3 can into 2 gallons fuel drive for 10 to 15 miles it will clean out all injectors and extract moisture from the tank if you have any in there. let me know if this helps any. thanks.
Posted on May 04, 2010
check pulse generator circuit for any opens or shorts..even if you still show a weak purplish/red spark its bad..it must be a big bluish/white spark..check plug #1 for spark and then check #3 foe spark if there both week then its your pulse generators that are bad ..but if one of them has a blushish spark then it that systems coil..eg #1and#4 or the #2and #3 coils..
Posted on Aug 19, 2010
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