99 Whizzer Electrical Troubleshoot

won't start at all

Tried to fire it up yesterday, and it stalled out a minute later.

Now the bike won't start at all.

Battery is still off the bike. Plug looks good. Fuse OK

At a loss for where to start without an operable motor.

Randy
 
Mine did that once. I forgot to turn on the fuel valve. (silly me) If the valve is on then I believe the filter is plugged up. It definitely sounds like a fuel flow problem. Another thing to consider is old fuel. Good luck.

Jim
 
Won't Run=No Fun!

Hi, well, your bike has 2 fuel valves. I like the idea of first open both petcocks, and drain a little fuel thru the bottom hose on the carb, this proves fuel flow.

Next I would pull the plug, key o, kill switch on,and cycle the engine on the stand, looking for spark.

IF no spark, go to all grounds, and be sure that you have connection, and never forget that your taillight wire (if 2 pc harness) MUST be plugged in or you'll have no spark.

I've never heard of ign. tab missing, BUT check yours at this time.

If than no spark, may be time to pull flywheel, and see that Magneto is bolted down good.

Hope this helps,

Mike
 
Thanks Jim,

Fuel flow is fine.

Thanks Mike,

Are there any existing threads with instructions for disassembling and reassembling the flywheel?

Randy
 
Hi Randy, Removing flywheel is easy, but never use an impact wrench! use a peice of wood to wedge between flywheel and lower part of motor crankcase [where serial number is located]. You can use the ignition trigger plate to aid in wedging the flywheel. The bolt is regular threads [not reversed], loosen the bolt, lodge a peice of wood against the front of the flywheel from the other side of the motor and tap with a hammer. The flwheel will easily "pop" loose, remove the flywheel bolt and remove flywheel. When installing the flywheel reverse the process. Always check the stator mounting plate and use Loc-tite on the bolts, as I have seen a few with loose bolts.

If you are having problems with starting, try using a little starting fluid. If the motor runs longer then the problem is most likely in the carburetor [they are famous for stopping up]. Another trick you can try is to remove spark plug, insert a little gas down the spark plug hole, quickly screw in spark plug, and try to start.

Happy New Year,
 
Last edited:
Hi,

I'm getting ready to remove the flywheel and I noticed that the wiring from the generator runs behind the clutch plate and the frame. It looks like a bad place for it to be. How should that wiring be routed?

Also do I need to substantially loosen the front belt to get it off so I can remove the flywheel?

Thanks in advance!

Randy
 
Found at least one problem.

The + and - wires were sheared almost in two from the generator. Looks like they were shorting out as well. Will definitely reroute those.

Now I know how to remove the clutch. Yeah!

Got the flywheel bolt loose. Tried some tentative hammer taps to loosen it to no avail. Any danger of bending or stripping something? There is a screw on the outer edge of the flywheel. Does that need removed first? Or do I just need to whack it a little harder. Hate to break something without first asking a question or two.


Like they say at Make Magazine - "If you can't open it, you don't own it."

Thank you all for all your help. One of these days I'll own this sucker!

Randy
 

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Got the flywheel bolt loose. Tried some tentative hammer taps to loosen it to no avail. Any danger of bending or stripping something? There is a screw on the outer edge of the flywheel. Does that need removed first? Or do I just need to whack it a little harder. Hate to break something without first asking a question or two.

First, the bolt is right-hand thread, not left hand thread like the vintage Whizzers. You may be actually tightening the bolt. That screw on the outer edge is the trigger mechanism to trigger the spark. Don't remove it. The best way is to wedge a piece of wood between the flywheel and the frame to keep the flywheel from moving. Do not under any circumstances use an impact wrench.
 
I got the bolt off, it was just the advice from Quenton to tap it from the other side of the bike to pop it off.
 
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