Recent posts

#51
TechTalk / Re: Ignitiech TCI report
Last post by briandneville - July 02, 2023, 12:43:41 PM
Current update:

I have not had a recurrence of the problems experienced before installing the new TCI unit.  I had a different problem once as follows:

Bike warming up in the driveway in the normal fashion, then tach dropped to 0 and engine ran on one cylinder.  I turned it off, let it sit for 5-10 minutes, and re-started it.  Problem was gone and has not returned.  While tis is similar to the problem that led me to buy and install the new TCI, it is definitely not the same.  Maybe I've got a coil problem?  The rev limiter circuit was cut when I got the bike, so I don't think that is causing this.
#52
TechTalk / Re: No Sparky
Last post by briandneville - July 02, 2023, 12:38:02 PM
Walt refers to my post from last fall.  I have added to it FYI
#53
TechTalk / Re: No Sparky
Last post by Walt_M. - July 02, 2023, 09:37:53 AM
Sounds like a bad TCI to me. If you have an original you must remember that it is 40 years old and they will fail. You might try to find a replacement but it will also be 40 years old. Somebody on here got an Ignitech not too long ago, pretty sure it worked but I would have to find the post. The post is just down the page and it was cheaper than I thought at $170.
#54
TechTalk / Re: No Sparky
Last post by jefferson - July 01, 2023, 11:23:09 PM
No need to rebuild the starter as your voltage is staying high enough to fire. A r/r doesn't have anything to do with the ignition system. Have you had the connections undone on the ecu and wires from the stator. The connection from the stator will plug into the ecu as it is the same plug and will fry the ecu. Double check those connections.
#55
TechTalk / Re: No Sparky
Last post by mshowe - July 01, 2023, 11:10:13 PM
I have above 12 volts when cracking.  Shouldn't there also be a single spark shortly after turning the key on?  Either way, no spark.  Will a faulty r/r cause such behavior?  Should I take starter off?  I rebuilt this starter several years ago.  Seems like. I should still get the single pop on key turn.  I am out of my league despite historically changing all electrical components.  It's run great for at least 4 years.  Any help is much appreciated.
#56
TechTalk / Re: No Sparky
Last post by jefferson - June 29, 2023, 10:52:18 PM
Check the voltage at the battery while cranking and also note the voltage before cranking. A good battery should show 12.6 volts.
#57
TechTalk / Re: No Sparky
Last post by mshowe - June 29, 2023, 10:45:44 PM
Thank you for your replies.  I never thought of the starter, since it seems like it's engaging properly.  so yes, it's cranking just not starting and it's not starting because there is no spark.

Where do I meter the voltage during cranking?  At the starter?
#58
Off Topic / Re: MotoGp 2023
Last post by Walt_M. - June 28, 2023, 05:20:24 PM
We've reached the summer break. Marquez has yet to complete a race and Ducati lost a sprint and 1 Gp. Exciting season, not. Doubt if I get video pass next year.
#59
TechTalk / Re: No Sparky
Last post by jefferson - June 28, 2023, 09:39:28 AM
To back up Fret not, you have to have a good battery and connections. If the voltage drops too low you will not get a spark. A big part of that problem is likely oil getting into the starter and gumming things up. The starter sits below the oil level and has an inadequate seal on the nose of the starter. Contact surfaces in the starter will need to be cleaned and shined up as well as putting a new seal in the nose of the starter. Start with the easy stuff first. Charge the battery fully and have it load tested. Clean and shine up all connections of the large battery cables. You might try starting the bike with a jumper to a car battery without the car running and see if it starts then. Maybe even try starting with it hooked to a battery charger. Those 2 options should keep the voltage over the sparking threshold.
#60
TechTalk / Re: No Sparky
Last post by fret not - June 27, 2023, 01:49:09 AM
Can you clarify?  Does the starter spin the motor?  Have you tested for voltage when cranking? 10.5V or less will cause NO SPARK when cranking.  This seems to be a built in feature of our ignition systems.