yfz killing batterys?

[hondadude101]

i traded my honda 450 for a yfz and the crank locked up on me right away so i had it rebuilt and now its killing batterys. When i go on a long ride like an hour before shutting it off it will kill the battery and it wont hold a charge after that. but if i dont ride that far its fine, could be engine getting to hot or a wiring failure? some help?

[CamQuadRider]

2 things, YFZ's are known to kill batterys you may have a bad one, and crank shafts go bad on them really fast i have a bunch of friends and between the all of us we have replaced about 5 in about a year, im getting another now. tehe

[chopp124]

i sell kickstarts txt 8609826592

[CamQuadRider]

Do you sell for a Raptor 250 as well?

[chopp124]

no theres no spot for them

[guy310]

If you know anyone that has replaced 5 cranks in a year they are doing something way wrong. Thats not typical for a YFZ, its typical for people who do absolutely no maintenance and beat the living crap out of their machine. National racres dont go through cranks like that.

Some YFZ's have had trouble with voltage regulation which will kill a battery but there is a simple fix for that. Go to your local Yamaha dealer and tell them what your problem is and they will steer you in the right direction.

[str8shooter]

relpace the stator.Charging coil is fried

[hondadude101]

just rebuilt the whole motor so its not the crank, i havnt had any trouble with the battery for awile, now im trying to keep antifreeze in the sob it keeps blowing it out the overflow and im scared im gonna lock it up again because of low coolant.

[mulisha613]

Is it an 04? Do you have your head lights off if so put them back on to comPlete the circuit or it's the stator

[2001400exrida]

yup what he said ^^^^

the 04 05's will slowly drain the battery if you don't ever turn the lights on.

[wickdYFZ450R]

Have you figured it out yet. If not I was having this problem on my 11 yfz450r come to findout it was the rectifier went bad.

[JDiablo]

The charging feature when you run with the headlights on is needed to keep a full charge...othrrwise you need to upgrade your stator