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Re: Issues Starting the Engine

Posted: Thu Aug 26, 2010 8:49 am
by chuter
My spark unit podding compound melted out. A good Honda wrench buddy suggested I replace it with a very common epoxy product called "JB Weld". It's available at auto parts or many home repair stores. It works great and doesn't cost much.

Re: Issues Starting the Engine

Posted: Thu Aug 26, 2010 7:27 pm
by cb650
So you used it?

Re: Issues Starting the Engine

Posted: Mon Aug 30, 2010 10:45 am
by ccoulon
Thanks for all the advice! I ended up pushing/remolding what was left of the compound back into the spark unit and using epoxy to hold it in. However, the problem seems to still persist. After riding it more it seems like it will shut down when I am trying to accelerate too fast. The last two times that it has died I have waited about 5 minutes and the bike will start back up again like normal. I am still under the impression that it is the ignition system, so next on the list to test is the ignition coil. Does anyone know a good site with information on testing the coil? Thanks again.

Chris

Re: Issues Starting the Engine

Posted: Mon Aug 30, 2010 12:49 pm
by Volker_P
Try out closing the petcock and check fuel in bowls as written above. Possibly your inline filter is too restrictive or you have something similar like e.g. a kinked fuel line. If only one ignition circuit was affected, there will be a considerable power loss, but a CB650 runs not that bad on three and should run and roll on two somehow (maybe up to 55mph), too.
For the spark units it seems rather they just work or not, modern CDI's are more often tricky on temperature.

Re: Issues Starting the Engine

Posted: Mon Aug 30, 2010 6:09 pm
by cb650
I had a pickup go out on my last year and it will go 40 on 2 cyl. Would run fine untill it got hot then run on 2.

Re: Issues Starting the Engine

Posted: Tue Aug 31, 2010 8:05 am
by chuter
CB: yes, I used the JB weld. I pulled the spark units so they would lay flat, mixed the JB and using a small puddy knife, re-podded the units. JB does not conduct electricity and is not as reactive (it doesn't melt) to higher temps like podding compound.

Re: Issues Starting the Engine

Posted: Tue Aug 31, 2010 6:14 pm
by cb650
Cool Adam needs to do this to his ignitors. Wanted to make sure it worked.

Re: Issues Starting the Engine

Posted: Wed Sep 01, 2010 2:36 pm
by chuter
CB: Here's the ignighters with the JB weld.

Re: Issues Starting the Engine

Posted: Wed Sep 01, 2010 5:13 pm
by my79650
great idea as mine have been leaking goo out of them for quite awhile; definitely will give it a try also.

Re: Issues Starting the Engine

Posted: Thu Sep 02, 2010 1:25 am
by Volker_P
Looks good. One should do this with leaking ignitors as soon as possible. If the inner components don't have thermal contact to anything any more, they may overheat and fail. I'd try to have the original stuff at least between components and the bottom side with the cooling fins as this stuff probably offers the required thermal conductivity.

Re: Issues Starting the Engine

Posted: Fri Oct 04, 2013 8:36 pm
by Rocket Man
I used high temperature silicon before reading this. I imagine JB weld would have better thermal conduction. So far so good.