Question about Yamaha YZF-R1 Motorcycles
2002 r1 bike wont crank over. replaced battery stator and rectifer all at same time. will start , but when stop and try to restart wont crank over. battery is over 13, but when trying to start drops to about 9. once the bike start is everything is fine. bike running has over 14.4v just having problems with intial start up , like battery is dead. but not.
Sounds like the starter motor itself. Does the engine turn at all when you try to crank it?
Posted on Feb 15, 2014
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Posted on Jan 02, 2017
SOURCE: R1 start problem
I had the same problem. After throwing all kinds of money at it, like a new battery, new relay, checking the fuses and many other things. I finally took it to a great shop (M Racing in Glendora, CA) and they discovered it was the starter brushes. Now Yamaha sells a rebuild kit for the 06 R1 starters but it's on back order all the way to Japan. Turns out Yamaha Japan knows about this defect and word is it's going to take months before they start producing the rebuild kit again. I'm sure there will not be a "starter recall" as that would cost Yamaha way to much money which is what the worlds all about, right? Anyway, my starter was rebuilt by a mechanic that rebuilds starters and I haven't had no problems with it. Hope this helps and whatever you do, don't take your bike to Montclair Yamaha. Dealerships charge way to much money and don't get the service or quility of work we all deserve.
Posted on Apr 16, 2009
too many variables !
Firstly check battery under load ! any battery place or auto electrician can so it usually free!
do this before replacing any thing else!
make sure all connections are clean & tight
if battery is ok get them to check the charge rate on bike! its a simple test or you can do it with a volt meter they are only cheap to buy!
Posted on Jul 18, 2009
your voltage/reg. can be tested in a couple different ways check ground res. check res. then revs. bias on diodes you have ac in dc out it sounds like you may have a diode gone bad allowing ac curent to flow causing the wires to get hot
Posted on Jul 31, 2009
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