OMP Regulator Rectifier Upgrade By damin69 (Read 13,233 times)

[Cruiser]

Here's the one I got:

cgi.ebay.com/ebaymotors/YTZ14S-YAMAHA-FZS1000-FZ1-XJR1300-VMAX-1700-BATTERY-_W0QQcmdZViewItemQQhashZitem2a05775f73QQitemZ180480335731QQptZMotorcyclesQ5fPartsQ5fAccessories

Fast shipping, acid is already installed, and it holds a 13.1 volt charge. $56. 12 month free replacement.

[damin69]

Thanks Guys. New Battery Ordered.

[Cruiser]

While riding the scoot at night, I decided to turn on both the HID lights to see how much light they would throw and also to check the performance of the charging system. Running with one light gave me a steady 14 volts at the battery which included the cooling fan and the electric fuel pump running - very good. ;D Turning on the second light really lit up the road, but the charging voltage kept decreasing gradually until after about 5 minutes, battery was discharging.

The R/R was not overheating so I started wondering about the stator. I e-mailed Tony at Oregon Motorcycle Parts (the guy Todd got the R/R from) and asked a few questions about his R/R and stators in general. His R/R is capable of 25 amps output which would make a super replacement assuming the stator can put out enough to match the R/R's output. I put a bug in his ear about the stator capabilities and he agreed that although his R/R was much better than the Chinese or even Honda Helix units, the stator could be maxed out.

The good news is that he said he would be willing to experiment on one of the scoot stators to see if they can be improved if someone would be willing to donate one (good or bad) in the name of Scooter Medical Science. He is willing to hand rewind one to see what the stator is capable of and if it turns out OK, then he would start making upgraded stators.

Smorkle, where are you? I believe you just replaced your stator. Would you be willing to donate it to Tony? If not, does anyone else have a donor? This Tony appears to be a sincere and dedicated person who takes what he does seriously. Answers e-mails promptly and is trying to help us out. Maybe, with his help, we can get a decent charging system on our scoots.

[damin69]

Cruiser how are you disabling your HIDs so that you only have one running at a time or selecting to have both on?. I know you said you had the HI beam set up to switch from one to the other.

I tell you if I had a Stator to give up to Tony to do testing on I would do it in a Heartbeat. If Tony starts rewinding custom Stators for our machines you bet your A$$ I will be buying one from him.

[Cruiser]

Here's an article on stator rewinding, JR.

www.thegsresources.com/garage/gs_statorrewind.htm

[Cruiser]

The actual electrical loads between the Linhai and CfMoto scoot are similar. There should be no discharging with the cooling fan on for either scoot. Todd never really complained of overheating. He was just trying to avoid running the fan too much. Your scoot can run a fan all day long with no problems. The Cfmoto charging system is apparently what is wrong. We actually dropped the fan current by almost 3 amps and still cannot run with everything on. Now we almost for sure know the root of the problem and Tony will have to work with the 18 pole CfMoto style stator for an upgrade. Thanks for talking with Smorkle. Now to find a CfMoto donor stator.

[Smorkle]

Hey guys, I've been in St Louis on vacation so I've not been watching the forum.

I took this picture looking up at the St Louis Arch on saturday:


In any event, I've been reading up on what's been going on here and I just had one thing to add to what JR said about the 2 stators. Both of them were supposed to fit the Linhai engine. The larger one of them is listed as the Roketa magneto. It seems strange to me that there are two different types in identical engines, but there it is.

As for donating my old one, I had been kicking around the idea of rewinding it myself based on that link JR posted "The Stator Papers." I was wanting to maybe have a spare for later down the road. That having been said, I'd be happy to part with it in the name of scooter repair science to someone who knows that it is that they are doing.

Just keep in mind, my stator was 104mm overall with a shaft size of 41.5mm. The smaller one that I got and had to send back was 93mm overall with a shaft size of 35mm. I think that perhaps a cfmoto clone engine may possibly have a different one entirely? Before I give mine up to be rewound, I think we'd ought to find someone with an identical stator that needs replacement.

[damin69]

Now as far as the fan. I used part of the old shroud and added the new. So The new fan is of set back about 1" from the radiator. I had to move the radiator forward to alow for the mount.. I believe cruiser said he shaved the blades on his to allow him to use the stock fan enclosure.

[Cruiser]

That's right Todd. I just remounted the new motor and blade in the original shroud. Had to shave about 1/8" off the ends of the blades. Spacing between the fan and radiator remained the same. I liked the new curved blades because they seemed to pull more air while drawing about .2 amps less current.

Dr. JR, your words have not fallen on deaf ears. I ordered the fan/radiator combo that is identical to mine a couple of days ago. Thanks for the link and it cost about $40 after instant Bing cashback. ;D However, I still want more amps. I'm going to make some comparisons on the stator output at the R/R input to see how much it fluctuates with 1 and then 2 headlights on. If there is little or no change, then I have a weak R/R.

[Cruiser]

The fan that Todd and I used as a replacement is rated at 1100CFM. Doing a side by side blow your hair back comparison on the bench didn't really show any differences to me. At least it is a 2 to 3 amp savings.

[Cruiser]

Here's the link:

www.siliconeintakes.com/product_info.php?cPath=15&products_id=1024&osCsid=d83e017a585fdd14bcb057bc258eebcf

It looks like a 7" fan diameter.

[Cruiser]

Sounds like it is worth trying. Running current through less wiring has to save some power. In the case of the marginal wiring in our scoots, it might be considerable.

[damin69]

Oh well Just looked this battery up after I received it. Page never said what AH it actually was. I did find a site though upbattery.en.made-in-china.com/product/qMAEsDyVZcWf/China-Motorcycle-Battery-YTZ14S-MF-.html

It is only at 12AH but that is still better than the 9AH. I just hope it holds up better.... :-)

[yoster]

This thread needs to be a sticky somewhere; maybe not the whole thread but at least the post where Damin summarized his solution and included links to the better RR. Pretty much every 244cc owner is going to want to make this upgrade at some point.

[zugzug]

Instead of pulling from the red wire at the R/R why not pull straight from the battery using a auto relay and use the old hot wire as the trigger.