Does anyone know how big is the original starter motor in a 650? I would need to know the power of the motor or how much current does it take.
My bike is -02. I was going to make a 24 volt connection for the starter, with to batteries so that normally they both get charged, but when starting the batteries are in parallel so they give 24v.
But i was wondering if 100 amp relays can handle the amps that the starter takes.
But i was wondering if 100 amp relays can handle the amps that the starter takes.
To get 24v, the batteries would have to be wired in series...not parallel.
I would strongly advise against making a 24v connection to your starter. The epoxy (insulation) on the windings are only rated to a certain voltage. I am pretty sure 24v would smoke the windings. A better solution would be to wire the batteries in parallel....this would still give you 12v, but would offer up more amperage available to draw on. This is what heavy duty trucks do to aide in turning over a big high compression diesel engine.
Or just replace your original battery with one with a higher amphour ( aH) rating.
I would strongly advise against making a 24v connection to your starter. The epoxy (insulation) on the windings are only rated to a certain voltage. I am pretty sure 24v would smoke the windings. A better solution would be to wire the batteries in parallel....this would still give you 12v, but would offer up more amperage available to draw on. This is what heavy duty trucks do to aide in turning over a big high compression diesel engine.
Or just replace your original battery with one with a higher amphour ( aH) rating.
Hi. before doing all the battery mods just check out the condition of your starter motor ,check the brushes are not worn down too far ,blow out and clean the brush gear with a good electrical solvent [contact cleaner is good] and check the comutator segments that the brushes run on are clean and not damaged an auto electrician will do this for you if do not feel confident too tackle it, but its fairly straight forward ,it will make a big difference if your starter is in a1 condition.........colin
Yes, i meant to connect them in series, but got confused with english terms... I have two batteries already installed, now they are parallel but the engine just doesn't spin fast enough.
I was planning to put a bigger starter motor someday, but decided to test the 24v connection first. I dont mind if the starter brakes down. I even have a spare one waiting if i need it, because my brother's bike has got a bigger starter so he doesn't need the old one anymore.
Someone wrote here that the starter doesn't burn right away, you just have to avoid starting too long.
I quess i could inspect the starter motor closer and take a look whats inside.
I was planning to put a bigger starter motor someday, but decided to test the 24v connection first. I dont mind if the starter brakes down. I even have a spare one waiting if i need it, because my brother's bike has got a bigger starter so he doesn't need the old one anymore.
Someone wrote here that the starter doesn't burn right away, you just have to avoid starting too long.
I quess i could inspect the starter motor closer and take a look whats inside.
Joined Dec 2004
2K Posts | 248+
back in cottonwood, az
sounds to me you're trying to reinvent the wheel. evidently, you are trying to overcome the engineering problems built into your '02. if you do a bit of research (like reading the owner's doc at left of home page), you will see that there are plenty of solutions to your problem... and 24v is not one of them.
Actually i have red the doc. I think that biggest problem now is that the starter motor is just too small. Even a newer -04 starter would be fine, but if i change it it will be bigger than that.
The stator is still standard, but i woud not want to send it to be rewounded because it still works. If i manage to find a broken stator somewhere i will send it rewounded.
Most of the improvments cost money, two relays just 24 euros.
I have a new autodecomp (later model) and i was planning a different camshaft but not just yet.
The spark plug is a bit old, i will buy Denso iridium plug next week.
The stator is still standard, but i woud not want to send it to be rewounded because it still works. If i manage to find a broken stator somewhere i will send it rewounded.
Most of the improvments cost money, two relays just 24 euros.
I have a new autodecomp (later model) and i was planning a different camshaft but not just yet.
The spark plug is a bit old, i will buy Denso iridium plug next week.
Joined Dec 2004
2K Posts | 248+
back in cottonwood, az
you couldn't have read it too closely, there are a couple solutions to your problem:
1) r6 yamaha starter (taffmeister's "beefy" starter).
2) dutch clog ('04 up) autodecomp mod or just replace the shot '02 one with a new stock one (it'll prolly last until you sell it) :bounce3:
As i wrote before i have the newer style autodecomp.
And that is just what i was planning, if the 24 volt system burns the starter i will put the yamaha R6 starter in it.
But today i got hold of an amper meter that can handle larger currents. The big starter in my brother's bike takes about 80 amps, the reading varys between 70-90 amps.
So i will buy those two relays, make the wiring and see how it goes, if it brakes then it's time for the bigger starter.
And that is just what i was planning, if the 24 volt system burns the starter i will put the yamaha R6 starter in it.
But today i got hold of an amper meter that can handle larger currents. The big starter in my brother's bike takes about 80 amps, the reading varys between 70-90 amps.
So i will buy those two relays, make the wiring and see how it goes, if it brakes then it's time for the bigger starter.
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