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Discussion Starter #1
Had the bike (450excr) for a couple of weeks, while out on a ride yesterday the electric start has stopped working.
It wasn't great when I first got the bike and has got worse since then. I believe it to be battery related but I am a novice in the mechanics department?

Any help welcome?:confused:
 

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Yep, battery needs recharging :rolleyes: they dont have a fantastic recharge rate (enough for normal use, but not enough to be fecking about with the leccy start) ;) Mine was flat as a witches tit when I got my bike, charged it once and its been fine since :cool: I use it every weekend, and only use the kick to prove how easy it is (or to piss off any XR owner who is struggling to start there bike :D)
 

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" I use it every weekend, and only use the kick to prove how easy it is (or to piss off any XR owner who is struggling to start there bike )"

Smirk
 

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I share the problems of starting, my 53 plate won't start on the electric start at all from cold even with the battery fully charged on my acumen trickle. Always need to kick it to start initially.
 

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Discussion Starter #12
Mine will start if the battery is charged but over the course of a day it drains out. on my 2nd battery now too.:rolleyes:

I'm now gonna change alternator and stator....
 

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Hi,
have youchecked whether its charging like a volt meter accross the battery, there are 3 causes for a flat battery,
shagged battery , shagged stator or shagged reg/rec and easy to find out which one
Dave
 

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The reg/rec is bolted on frame tube under the tank, should have 3 wires in from stator, check these with engine running and you should have AC volts (set meter to AC ) cant remember how much but poss around 70volt ac, there will be 2 wires coming out , possitive and earth , check (on DC volts) for dc volts out. If no AC volts the stator is knackered and if ac volts and no DC then reg/rec is U/S. Also check that the DC wire has current from the battery as there may be a break as it could be charging fine but not getting to the battery, if the lights get bright when revved it is charging on at least one side of the stator
Dave
 

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Most common problem is festering connector between loom and regulator. Its a 4 way plug (brown, yellow, white, red/yell). Pull it apart. If its all gammy inside chop it off and wire the wires direct to each other one at a time.

Yellow wire feeds ac to the lights, white wire charges battery (via regulator/rectifier)

Checking the generator output
Measuring conditions:
– cold engine
– seat and tank removed
– all connectors and the ground connection in a non-corroding condition, connectors tightly connected
– battery loaded (if installed) and light switch turned off
– compression release lever pulled
– kick the kick starter forcefully at least 5 times for each measurement
Check the generator output for voltage between the following cable colors:
– between yellow and brown (ground), loom disconnected
Multimeter display: 15 volts +/- 1 volt
– same measurement with loom connected
Multimeter display: 12 volts +/- 1 volt
– between white and brown (ground), loom disconnected
Multimeter display: 19 volts +/- 1 volt
– same measurement with loom connected
Multimeter display: 14 volts +/- 1 volt
NOTE: The black measuring lead of the peak voltage adapter must be
applied to the ground.
Check regulator rectifier output voltage cable colors yellow/red, regulator rectifier bk connected,
capacitor disconnected (if installed) and fuse bm removed:
– between yellow/red and brown (ground)
Multimeter display: 14 volts +/- 1 volt
NOTE:
– The black measuring lead of the peak voltage adapter must be
applied to the ground.
– For facilitation of work, the regulator rectifier bk can be detached from
the frame.



Checking the voltage regulator-rectifier
A defect voltage regulator can cause different kinds of trouble:
● No voltage in the circuit
In this case, the voltage regulator must be disconnected at idle speed.
The voltage regulator is defect if the power consumers now work
properly.
If the power consumers are still not supplied with power, the switch,
the wiring harness or the ignition system must be checked for defects.
● Excessive voltage in the circuit
The bulbs burn out. In this case the voltage regulator must be
replaced.
Checking the charging voltage
NOTE: The values stated below only apply to fully charged batteries
(minimum charging level 90%).
– Start the engine and switch on the low beam.
– Connect a voltmeter to both battery connections.
– Accelerate the engine to a speed of 5000 rpm and read the voltage.
Nominal value: 14.0 - 15.0 V
In the case of a significant deviation from the nominal value:
– Check the connector between the stator and the voltage regulatorrectifier
and the connector between the voltage regulator-rectifier and
the cable tree.
– Check the stator.
– Replace the voltage regulator-rectifier
 

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wow, gotta love Kev (but not in a homo way in any shape or form)
 

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wow, gotta love Kev (but not in a homo way in any shape or form)
Hell yeah :D I would seriously consider adoption if it ever came available ;)
 

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before I offer any advice, can you please confirm that you have taken the advice above ? ie. bought a new battery, charged it up properly, bought a decent trickle charger and kept it on trickle charge ?

Sorry guys, I didn't notice this thread had gone onto it's second page
 
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