Storm wiring question.

duck9191 · 07-03-2019, 08:54 PM

I have always noticed my headlight was dim, figured it was just the crappy China bulb. But... While putting my cluster in I found out that while running I am only seeing 12.5v at any rpm at the battery which is no where high enough to charge the battery. With lights on I'm only seeing 12.2v. Battery hasn't died yet because it's only been on short rides and I put it on a tender. So what I'm wondering is what others are seeing voltage wise? And if the wiring diagram for the hawk/csc tt250 is close enough to the storm to use to diagnose the stator/v reg. Glad I found this out sitting in the garage and not on the side of the road.

Megadan · 07-03-2019, 10:05 PM

My Hawk sees about 12.8-12.9V at idle (1500rpm) and about 14.3V at 5000rpm.

As far as the diagrams, yes, most of these bikes run the same or similar charging system. The TT250 uses a more standard 3 yellow wire output from the stator and a matching reg/rec due to its higher output. The Hawk, and likely your storm, use a 2 wire stator output with a reg/rec that has a ground (green) 2 inputs from the stator (white and yellow), 1 output (red to battery) and a black sense wire.

duck9191 · 07-03-2019, 10:20 PM

Thanks Dan, I'm gonna go ohm the stator windings and see if they are shorted or something. If that test OK I'll grab a vreg. I don't get anything at idle or 5k rpm.

Megadan · 07-03-2019, 11:16 PM

Quote:

Originally Posted by duck9191

Thanks Dan, I'm gonna go ohm the stator windings and see if they are shorted or something. If that test OK I'll grab a vreg. I don't get anything at idle or 5k rpm.

It could be something as simple as a connector pin that is pushed out. Continuity testing might not be a bad idea.

NzBrakelathes · 07-04-2019, 12:05 AM

Check how to test stator etc
Test AC side
Check at Regulator and connections etc
Could be as simple as a poor connection or as complex as faulty stator

duck9191 · 07-04-2019, 01:27 AM

My meter sucks but looks like .8ohm between the coils and 18vac, exciter coil read 270 ohms, 72vac. Going to grab a better digital meter tomorrow that can read capacitance and check the vreg.

NzBrakelathes · 07-04-2019, 07:56 AM

Quote:

Originally Posted by duck9191

My meter sucks but looks like .8ohm between the coils and 18vac, exciter coil read 270 ohms, 72vac. Going to grab a better digital meter tomorrow that can read capacitance and check the vreg.

Each output coil should be equal I think 70vac
Are there 3 on your system? I’ve not seen the AC CDI version you guys have etc
I assume you have 3 and each wire to earth about 70vac
Resistance between each wire equal etc and open circuit to ground
Think that’s about all I did to test my bike.
I’ve seen bad connectors at the plug near motor n at the regulator.
Test bolts at output of regulator too

NzBrakelathes · 07-04-2019, 07:57 AM

Red with white is ac power for CDI so that won’t need testing if bike runs

duck9191 · 07-04-2019, 11:26 AM

Like Dan said it's only a 2 pahse stator, they have a yellow and a pink wire for the primary windings. Bike side they are white to pink, yellow to yellow. The ground, trigger and exitcter all matching color.

I only saw 18vac on the primary windings which I think is low.

Trying to find the stator is tricky, might just switch to a 3 phase stator and rectifier/ voltage regulator, should pick up a bit of output too.

humanbeing · 07-04-2019, 11:48 AM

Typical "8" CG stator are (use google translate app will get the rough idea):

NzBrakelathes · 07-04-2019, 08:26 PM

Changing stator to "other style" involves a bunch of other things - CDI then is DC and Reg and some wiring changes etc etc.

The other stators (most?) are bigger in diameter so new flywheel and related parts etc needed.

NzBrakelathes · 07-04-2019, 08:31 PM

Quote:

Originally Posted by duck9191

Like Dan said it's only a 2 pahse stator, they have a yellow and a pink wire for the primary windings. Bike side they are white to pink, yellow to yellow. The ground, trigger and exitcter all matching color.

I only saw 18vac on the primary windings which I think is low.

Trying to find the stator is tricky, might just switch to a 3 phase stator and rectifier/ voltage regulator, should pick up a bit of output too.

Black with red = AC power to CDI
Green with White = earth side of pick up?
Blue with white plus of pick up/tacho wire
White to Pink AC for charging?
Yellow AC for charging?
Green with red stripe = neutral.

If you know more def then me I will edit - think this is about right.

duck9191 · 07-04-2019, 11:07 PM

Quote:

Originally Posted by NzBrakelathes

Black with red = AC power to CDI
Green with White = earth side of pick up?
Blue with white plus of pick up/tacho wire
White to Pink AC for charging?
Yellow AC for charging?
Green with red stripe = neutral.

If you know more def then me I will edit - think this is about right.

Woke up feeling like absolutely trash today so didn't do much with it. Did retest the primary windings, getting 1.4ohm, no short to ground and they are putting out upwards of 50vac at 4k rpm. Continuity test each wire end to end with no issues. Did find that the vreg is putting out 13.5v for about 2 minutes then it doesn't put out anything. Diodes in the rectifier test good so it seems like a vreg issue. Ordered one off amazon that will be here Saturday.

that looks right. I haven't back traced the blk/red wire, one diagram listed it as the exciter coil, but never know. I'll take a look Saturday if I'm feeling better and see where its heading.

Cravin01 · 07-06-2019, 12:19 AM

My storm shows over 14 volts when running but over 12 sitting, That's what my USB/Voltmeter reads. The stock light was dull but I did a upgrade and now it's blinding bright. The stock battery is still on the bike, I don't really know if it's the crap battery or the charging system but you can only get a half dozen hard cranks before she gives up the ghost so I just use a battery tender and with my upgraded pumper carb I can kick start her easy enough as long as I use the choking sequence.

Full choke... kick till she fires and dies
half choke... kick and let her run and warm up
choke off... when warm she will Idle down a tad and now you get full throttle and no cut out.

This has always been a concern to me with these bikes, The battery dies quick and they suck to try and kick start. I would suggest a carb upgrade (preferably pumper for the extra gas) first to anyone. Not just for performance but for the ability to get her running with a dead battery. it's cheaper than a booster pack too!

NzBrakelathes · 07-06-2019, 08:32 PM

Quote:

Originally Posted by Cravin01

My storm shows over 14 volts when running but over 12 sitting, That's what my USB/Voltmeter reads. The stock light was dull but I did a upgrade and now it's blinding bright. The stock battery is still on the bike, I don't really know if it's the crap battery or the charging system but you can only get a half dozen hard cranks before she gives up the ghost so I just use a battery tender and with my upgraded pumper carb I can kick start her easy enough as long as I use the choking sequence.

Full choke... kick till she fires and dies
half choke... kick and let her run and warm up
choke off... when warm she will Idle down a tad and now you get full throttle and no cut out.

This has always been a concern to me with these bikes, The battery dies quick and they suck to try and kick start. I would suggest a carb upgrade (preferably pumper for the extra gas) first to anyone. Not just for performance but for the ability to get her running with a dead battery. it's cheaper than a booster pack too!

A good tune of stock carb is the same as tuning a pumper or Mikuni.
They all work the same basically and the pumper just adds a squirt of fuel on fast throttle twist - BUT as far as kick starting and most running goes all 3 are pretty much the same or a very minor change.

IMO (YES I sell a kit, I know I know...) learning on the stock carb is prob the best starting point cause it requires the same skills on the other 2.
Cheaper n smarter to learn on stock carb IMHO.

07-03-2019, 08:54 PM	#1
duck9191 Join Date: May 2019 Location: Port Huron, Michigan Posts: 637	Storm wiring question. I have always noticed my headlight was dim, figured it was just the crappy China bulb. But... While putting my cluster in I found out that while running I am only seeing 12.5v at any rpm at the battery which is no where high enough to charge the battery. With lights on I'm only seeing 12.2v. Battery hasn't died yet because it's only been on short rides and I put it on a tender. So what I'm wondering is what others are seeing voltage wise? And if the wiring diagram for the hawk/csc tt250 is close enough to the storm to use to diagnose the stator/v reg. Glad I found this out sitting in the garage and not on the side of the road. __________________ 2020 Triumph Tiger 900 rally. 2018 Bashan Storm 250. pz30b, digital cluster + gear indicator, unifilter and car customs full exhaust. 2019 Taotao 110b boulder atv. The "arm breaker" lol 2007 Honda VTX 1300R. 1974 Suzuki tm125, work in progress 2001 Suzuki Drz 400s.
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07-03-2019, 10:05 PM	#2
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 7,986	My Hawk sees about 12.8-12.9V at idle (1500rpm) and about 14.3V at 5000rpm. As far as the diagrams, yes, most of these bikes run the same or similar charging system. The TT250 uses a more standard 3 yellow wire output from the stator and a matching reg/rec due to its higher output. The Hawk, and likely your storm, use a 2 wire stator output with a reg/rec that has a ground (green) 2 inputs from the stator (white and yellow), 1 output (red to battery) and a black sense wire. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
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07-03-2019, 10:20 PM	#3
duck9191 Join Date: May 2019 Location: Port Huron, Michigan Posts: 637	Thanks Dan, I'm gonna go ohm the stator windings and see if they are shorted or something. If that test OK I'll grab a vreg. I don't get anything at idle or 5k rpm. __________________ 2020 Triumph Tiger 900 rally. 2018 Bashan Storm 250. pz30b, digital cluster + gear indicator, unifilter and car customs full exhaust. 2019 Taotao 110b boulder atv. The "arm breaker" lol 2007 Honda VTX 1300R. 1974 Suzuki tm125, work in progress 2001 Suzuki Drz 400s.
	0

07-04-2019, 01:27 AM	#6
duck9191 Join Date: May 2019 Location: Port Huron, Michigan Posts: 637	My meter sucks but looks like .8ohm between the coils and 18vac, exciter coil read 270 ohms, 72vac. Going to grab a better digital meter tomorrow that can read capacitance and check the vreg. __________________ 2020 Triumph Tiger 900 rally. 2018 Bashan Storm 250. pz30b, digital cluster + gear indicator, unifilter and car customs full exhaust. 2019 Taotao 110b boulder atv. The "arm breaker" lol 2007 Honda VTX 1300R. 1974 Suzuki tm125, work in progress 2001 Suzuki Drz 400s.
	0

07-04-2019, 11:48 AM	#10
humanbeing Join Date: Mar 2008 Posts: 2,436	Typical "8" CG stator are (use google translate app will get the rough idea): __________________
	1

07-04-2019, 12:05 AM	#5
NzBrakelathes Join Date: Jun 2016 Location: Hell Posts: 2,408	Check how to test stator etc Test AC side Check at Regulator and connections etc Could be as simple as a poor connection or as complex as faulty stator
	0

07-04-2019, 07:57 AM	#8
NzBrakelathes Join Date: Jun 2016 Location: Hell Posts: 2,408	Red with white is ac power for CDI so that won’t need testing if bike runs
	0

07-04-2019, 08:26 PM	#11
NzBrakelathes Join Date: Jun 2016 Location: Hell Posts: 2,408	Changing stator to "other style" involves a bunch of other things - CDI then is DC and Reg and some wiring changes etc etc. The other stators (most?) are bigger in diameter so new flywheel and related parts etc needed.
	1

07-06-2019, 12:19 AM	#14
Cravin01 Join Date: Jan 2018 Location: Forney Texas Posts: 498	My storm shows over 14 volts when running but over 12 sitting, That's what my USB/Voltmeter reads. The stock light was dull but I did a upgrade and now it's blinding bright. The stock battery is still on the bike, I don't really know if it's the crap battery or the charging system but you can only get a half dozen hard cranks before she gives up the ghost so I just use a battery tender and with my upgraded pumper carb I can kick start her easy enough as long as I use the choking sequence. Full choke... kick till she fires and dies half choke... kick and let her run and warm up choke off... when warm she will Idle down a tad and now you get full throttle and no cut out. This has always been a concern to me with these bikes, The battery dies quick and they suck to try and kick start. I would suggest a carb upgrade (preferably pumper for the extra gas) first to anyone. Not just for performance but for the ability to get her running with a dead battery. it's cheaper than a booster pack too! __________________ Visit me on YouTube at "Project Next"! https://www.youtube.com/channel/UC6KTCi2GVbfRDv-2XCqHhsg?view_as=subscriber 2017 Bashan Storm Keihen PZ30 Pumper Carb,115 main jet,35 pilot jet, gutted factory exhaust, Sambo Digital Speedometer,LED blinkers, H4 headlight,D.I.D X-ring chain 428,17/42 sprockets,UNI cone filter.
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