Question about Motorcycles
I recently got a yamaha fzr 400 deltabox it was standing for a while so i knew it was gna need a carb clean it didnt start at first so i stripped the carb completely cleaned the jets cleaned everything put it back together and it started so as i wanted to drive the battery was dead so i put the battery on charge for 7-8 hours put it back in drove to the shop got them got off was away for like 5min when i got back the battery was drained didnt wanna start again anyone can help me out pls
If it's dying that quick because the battery went dead, it might be a charging problem.
Get a MultiMeter:
Make sure the battery is charged, and start the bike.
Put the multimeter leads across the battery terminals (red to +, black to -)
You should be getting 13-14 volts, with the voltage increasing as you rev the motor.
If not, either an alternator or voltage regulator problem.
IF the battery is going flat in that time WITHOUT the motor running, you have a "parasitic" drain somewhere, that is draining the battery when it's off.
Posted on Dec 27, 2013
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Posted on Jan 02, 2017
SOURCE: carb issues
Sorry to hear about your carb issues. Two possible issues that come to mind are (1) fuel level in the bowl most float assemblies are made of brass and have a small tab which applies pressure on the float needle. If this tab is not adjusted correctly the fuel will not shut off when the float reaches its maximum height. The tab can be bent to apply pressure at just the right moment. You can verify this by doing a bench test, with the bowl off. So much nicer to know before going through all the work of putting it back on the bike. (2) Check the buoyancy of the float itself many of the old-school foam ones dont have enough umph to close the needle all the way. If you have the brass style floats make sure you dont have a leak. ( submerge the float then check for air bubbles also shake the float and listen for gasoline within) Check with GDL Cycles they can help you with those hard to find parts for many old school Japanese bikes.
Posted on Nov 10, 2008
Sometimes when the battery keeps going dead like that, a component may be creating a current draw. you can do a simple current draw test with a fluke meter by setting the meter to read amps, make sure the test leads are in the proper portals on the fluke for an amp test, and disconnect one of the battery cables and connect the test leads in-line with the battery and cable. It would help to know you have a good fuse inside the fluke. They are easy to blow, and whatever you do, DO NOT try to start the unit with the meter hooked up for the amp draw test. That is how fuses are blown. With the key off, check for any amp draw. If there is, you can start unplugging components until the draw goes away. If there was no draw to begin with, you may have a stator coil (or alternantor, whichever it has) that is weak and can't keep up.
Posted on Jun 11, 2009
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