SuzukiSavage.com - Starting question

Demin Serious Thumper Offline We need more chlorine in the gene pool Posts: 2435 Warren,Ohio Gender:	Starting question 03/11/13 at 04:02:38 On my '87 that I built...I used a 2000 engine.Used the '87 flywheel,sidecase,stater gears,brand new Autozone battery(seems kinda week though,as in no reserve time)... It still seems out of time,but my question is...Why does it only start after I release the starter button?If I hold the button in,it will crank and crank,let the button out it starts
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Charon

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Re: Starting question
Reply #1 - 03/11/13 at 05:37:07

While you are cranking the engine, the battery voltage is lower because of the starter's current draw. This lower voltage may be inadequate for the ignition control box, resulting in no spark. When you release the starter button the battery voltage will rise, allowing ignition spark. If conditions are right the engine can start.

Remember, a "new" battery is not necessarily the same as a "good" battery." Charge that battery at no more than 2 amps overnight, and see if it works better. That should have been done before you installed it.

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Eschew obfuscation.

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Demin Serious Thumper Offline We need more chlorine in the gene pool Posts: 2435 Warren,Ohio Gender:	Re: Starting question Reply #2 - 03/11/13 at 05:54:09 Yep,that's what I was thinking.Charged battery overnight,etc.Just thought maybe I was missing something with the engine change or decomp. adjustment or something.Probably a junk battery. Thank you for your help.
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Boofer Serious Thumper Offline Nearly too old. Posts: 1760 N Ms Gender:	Re: Starting question Reply #3 - 03/11/13 at 20:41:29 I'm not up to snuff on the compression release, but someone on here tell me if that is the problem. No compression till the release is.....released?
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Starting question Reply #4 - 03/11/13 at 20:50:07 Nope, decomp is only active for 1/2 a second. Charon has a good chance at being right. And either your timing is impeccable or your battery recovers real quick.
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Boofer Serious Thumper Offline Nearly too old. Posts: 1760 N Ms Gender:	Re: Starting question Reply #5 - 03/11/13 at 21:31:07 Vers, that's my point. Is it possible that the decomp is staying open until power is removed because of faulty timer? Just guessing.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Starting question Reply #6 - 03/11/13 at 21:43:08 Boofer wrote on 03/11/13 at 21:31:07: Vers, that's my point. Is it possible that the decomp is staying open until power is removed because of faulty timer? Just guessing. Never heard of it before, easy enough to check, put an eyeball on it before you mash down the starter button.
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Cavi Mike Serious Thumper Offline Thumper n00b Posts: 1005 Rochester, NY Gender:	Re: Starting question Reply #7 - 03/12/13 at 01:34:04 If it's not the decomp solenoid it might be the timing retard during cranking. ~~The CDI doesn't need much of anything for power to fire off a spark. If the motor is cranking, the battery has more than enough power to make a spark.~~ edit I'm mistaken. The bike doesn't have a CDI.
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Demin Serious Thumper Offline We need more chlorine in the gene pool Posts: 2435 Warren,Ohio Gender:	Re: Starting question Reply #8 - 03/12/13 at 05:10:18 I'm thinking timing.I get alot of kickback on shutdown too.And I have the old style starter gears in it.I'm going to pull the side cover off and have a look at everything.Maybe change it out for another one.
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Demin Serious Thumper Offline We need more chlorine in the gene pool Posts: 2435 Warren,Ohio Gender:	Re: Starting question Reply #9 - 03/12/13 at 05:54:38 I was just on Ron Ayers site.According to their parts diagrams the '87 and the '00 have the same rotor and stator,pick up included.Like I said,I'll have to pull mine apart and see what's up.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Starting question Reply #10 - 03/12/13 at 07:15:19 Don't mistake can't get the old one with it's the same. I can assure you, they're not.
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Routy

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Re: Starting question
Reply #11 - 03/12/13 at 07:32:18

Quote:
If the motor is cranking, the battery has more than enough power to make a spark.
-----------------------------------------------------
Not so on my bike,......and I believe others agree,.if the battery is low enuff that the engine is cranking slowly, it will not start. Put a charger on it for a couple minutes, it starts instantly.

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Rich
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Demin

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Re: Starting question
Reply #12 - 03/12/13 at 08:18:22

verslagen1 wrote on 03/12/13 at 07:15:19:

Don't mistake can't get the old one with it's the same.

I can assure you, they're not.

That's what I thought! I did use the '87 electrics and flywheel.I even had a thread to double check.Seems like timing is way off,because of the kickback I'm getting.

If I put a charger on it,sometimes it does start.....Autozone battery....
Maybe I'll throw my big crank in and see what happens

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Next project:finish '87 Savage custom/bobber/CHOP STYLE***DONE
finish '77 Yamaha XS650 bobber Bought another one
finish'79 Harley custom bobber(NEXT)

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Cavi Mike

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Re: Starting question
Reply #13 - 03/12/13 at 08:24:36

Routy wrote on 03/12/13 at 07:32:18:

Quote:
If the motor is cranking, the battery has more than enough power to make a spark.
-----------------------------------------------------
Not so on my bike,......and I believe others agree,.if the battery is low enuff that the engine is cranking slowly, it will not start. Put a charger on it for a couple minutes, it starts instantly.

That's compression leaking down - not the spark failing. Next time it happens, pull the plug boot off and you'll hear the spark. CDI's require very little power to create a spark. They're highly efficient.

*edit* I'm mistaken, the bike doesn't have a CDI.

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« Last Edit: 03/13/13 at 03:12:51 by Cavi Mike »

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Starting question Reply #14 - 03/12/13 at 08:34:30 It doesnt even have to be spinning sp slow its obvious the battery is down.
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