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Old Sep 21, 2006 | 03:53 AM
  #1  
imboden's Avatar
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Default Won't Start

Ok, she won't go. Got my clutch all figured out, but this thing will not go!!! I've got good fire in the plugs, and she'll turn over and over, but won't catch. dosn't even sputter. will just turn till the battery goes dead. have good gas, and good gas to the carb, good fire, all connections are good, what in the world could I be missing?

maybe my clutch is too tight? will that keep it from goin?
 
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Old Sep 21, 2006 | 04:08 AM
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Default RE: Won't Start

Are you sure your timing is right..You don't say what year the bike is...pre 70 a bad condenser can defintely f*** things up....points not gapped properly can lead to no start as well. If the clutch is too tight that means that it will clunk into gear when you put it in 1st and when you try to drive away it probably die,,,will not pevent it from starting tho...
 
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Old Sep 21, 2006 | 06:52 PM
  #3  
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Default RE: Won't Start

leaking at air intake (rubber bands?) Take off the air cleaner and spray some brake cleaner in the carb while starting.
 
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Old Sep 22, 2006 | 07:56 AM
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Default RE: Won't Start

Imboden,

First, could you tell us the year of your bike and components? Are you running points? Was any changes made prior to it not starting? You checked the battery, connections, fuel, spark. From just these factors, it is probably a timing issue. If it hasn't started, give us more info. Maybe we can walk you through statically timing it and get that sucker starting again.

 
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Old Sep 25, 2006 | 03:12 PM
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Default RE: Won't Start

Ok fellers, still won't go. will turn over like crazy, have spark, gas, point set right.... only changes were a clutch adjustment and a replacement of the nuts that hold my jugs on. I was sure to only replace one at a time so I wouldn't break a seal there, so I can't even imagine that would be an issue.

any ideas? can I check my timing without a timing light? or should I run down to napa and get a timing light?
 
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Old Sep 25, 2006 | 03:34 PM
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Default RE: Won't Start

From what you say, you are running a points system. With the key on and cranking the engine, do you see any spark when the points break between the point surfaces? Try a test light to the lead on the points and open the points and see if it lights. Do you have a pulsating spark at the plug lead? May be a bad condenser also.
 
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Old Sep 25, 2006 | 08:39 PM
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Default RE: Won't Start

OK. This is bad, but I'm going to assume that you have a nose cone shovel and that all you said above it correct about having spark, good gas, battery connections etc...

Static timing (down and dirty):
1. pull your front intake push rod cover off to expose your pushrod
2. take out your engine timing hole-left side of case
3. Rotate your motor until the points block is on the highest part of the cam. Then set your points gap at .018 (70's or later model)
3. Now rotate your motor to set timing on the front cylinder compression stroke-see the advance timing mark through the hole. Should be a single vertical line. Also, your intake valve lifter will come down to its lowest position to let you know you are on the compression stroke in the front cylinder.
5. Now that you have your advance timing mark in the middle of your timing hole and your point is gapped, your are ready to static time.
6. Loosen the two screw holding your advance assembly. To start the points need to be closed. Turn on your ignition. Now advance (turn clockwise) slowly until the points begin to slightly open and spark. Lock down your advance assembly plate.
7. Plug your inspection hole and give her a go.

This should get your bike started so you can fine tune your timing with a timing light, but I have good experience with static timing. Good luck.


 
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Old Sep 26, 2006 | 07:17 PM
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Default RE: Won't Start

now that you mention it, I went out and checked for spark between the points when I crank it and there isn't anything. does that mean bad condenser?
how do I test light the lead on the points?

ORIGINAL: glide

From what you say, you are running a points system. With the key on and cranking the engine, do you see any spark when the points break between the point surfaces? Try a test light to the lead on the points and open the points and see if it lights. Do you have a pulsating spark at the plug lead? May be a bad condenser also.
 
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Old Sep 27, 2006 | 02:43 AM
  #9  
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Default RE: Won't Start

Either bad condenser or points are coroded. Replace the points and condenser and I bet it will fire up.
 
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Old Sep 27, 2006 | 10:03 AM
  #10  
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Default RE: Won't Start

ORIGINAL: imboden

now that you mention it, I went out and checked for spark between the points when I crank it and there isn't anything. does that mean bad condenser?
how do I test light the lead on the points?

ORIGINAL: glide

From what you say, you are running a points system. With the key on and cranking the engine, do you see any spark when the points break between the point surfaces? Try a test light to the lead on the points and open the points and see if it lights. Do you have a pulsating spark at the plug lead? May be a bad condenser also.
No spark could be a bad condenser (grounded or shorted) or the points them selves are pitted and corroded and not making an electrical connection. Filing them and regapping them will tell the story but they should be replaced along with the condenser in the long run. To test light the points for power, just connect the test light clip to a good ground and use the point of the test light to touch the wire on the points connection block. You have to manually open the points to light the light and see if you have power to the points unless the rubbing block of the points is already on the high spot of the cam (points opened). If this is the case the light will light and then if you crank the engine over with the test light still connected and the points are bad, the light will stay lighted and not blink on and off as the points open and close. This is your "proof" that you don't have an electrical path through the points.
 
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