what is the glass resistor


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TheArtist
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what is the glass resistor

Postby TheArtist » Thu Apr 28, 2011 11:13 am



I noticed on my bike the regular resistor is disconnected and the wires are hooked to a glass one. This one got so hot it melted the case of the coil. Is this suppose to be there? It is not in any drawing but on ebay I see some on the coils listed. What is right? thanks.



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thrasherg
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Re: what is the glass resistor

Postby thrasherg » Thu Apr 28, 2011 1:34 pm

I think a picture might help.. :oops:

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virgilmobile
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Re: what is the glass resistor

Postby virgilmobile » Thu Apr 28, 2011 1:48 pm

The Gl1000 with points used a very large 'sandblock' resistor to reduce the running voltage to the coil primary.It was bypassed during cranking to provide extra spark.If it still has points,the resistor is required and cannot be eliminated.Someone removed the original and replaced it with another type.Probably a hollow core wire wound resistor.Most likely not the same value and power capability.Either replace it with the correct one or upgrade to full electronic ignition(my personal favorite)The original resistor may be OK and the PO may have been trying to get more spark with this part he added.(that don't work)The 1000 point system was fair at best and horrible with a weak battery.

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Re: what is the glass resistor

Postby TheArtist » Thu Apr 28, 2011 4:29 pm

It was updated to electronic ignition. The problem started with a bypassed fusable link that fried some wires. I fixed that, got it to fire off and them I smelled the burning smell and seen the resistor smoking up next to the coil. Melted clean thru the case, so I am going to replace the coil. After I do the carbs I will put in a electric fuel pump. Thanks for the help, I will try it with out the glass like resistor.

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virgilmobile
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Re: what is the glass resistor

Postby virgilmobile » Thu Apr 28, 2011 8:42 pm

I assume that you didn't do the upgrade.Before you get after it,get a make and model number of the CDI upgrade ignition system,internet search to find out the proper wiring and if the original Honda coils can be used.Generally speaking,point type coils and CDI driven coils are different or at least different wiring.

TheArtist
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Re: what is the glass resistor

Postby TheArtist » Fri Apr 29, 2011 8:20 am

WOW!! I will check that out this weekend. I will be doing a compression check and pulling the carbs. Thanks alot.

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virgilmobile
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Re: what is the glass resistor

Postby virgilmobile » Fri Apr 29, 2011 9:20 am

Compression test...Test with throttle wide open.It's MORE important that all the cylinders be close in pressure rather than how much pressure..Eg..145,146,142,147..would be good.100,155,95,120...would not.Pressure will vary dramatically,depending on general condition,temperature,etc.so expect to find pressure anywhere from 120-170 psi.Below 100 psi is usually a worn out engine.The average I've been seeing is around 145-155 psi.

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thrasherg
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Re: what is the glass resistor

Postby thrasherg » Fri Apr 29, 2011 10:29 am

Also to make life easier on the starter motor, remove all spark plugs as you should crank the motor for a few seconds on each cylinder to get the maximum pressure reading (You are suppose to keep cranking until the pressure gauge stops rising), it will also reduce the stress on the battery. As mentioned it is important to have the throttle held wide open whilst doing the compression test.

Gary

TheArtist
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Re: what is the glass resistor

Postby TheArtist » Fri Apr 29, 2011 10:54 am

10-4, it has one of those cruise levers which should make it easy.

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Re: what is the glass resistor

Postby WingAdmin » Fri Apr 29, 2011 11:03 am

It should also be said that you must have the kill switch turned off if you're going to crank with the plugs out, for two reasons: 1) it's not good for the ignition if the plugs are not grounded, and 2) if fuel/air mixture were to come out of the plug hole during the compression stroke and be ignited by an errant plug spark, you will have a huge fireball on your hands.

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virgilmobile
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Re: what is the glass resistor

Postby virgilmobile » Fri Apr 29, 2011 11:29 am

Yea OK.OSHA safety standard ,part 3 ,sub part 7 ,paragraph 45 ,3rd line item ,subsection 2. (I think).
Good idea anyway,thanks for reminding us,safety first,Virgil.

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Re: what is the glass resistor

Postby TheArtist » Fri Apr 29, 2011 11:35 am

Don't care about the smell of burned hair. Thanks for all the help.

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Re: what is the glass resistor

Postby Old Fogey » Sat Apr 30, 2011 7:56 pm

TheArtist wrote:It was updated to electronic ignition. The problem started with a bypassed fusable link that fried some wires. I fixed that, got it to fire off and them I smelled the burning smell and seen the resistor smoking up next to the coil. Melted clean thru the case, so I am going to replace the coil. After I do the carbs I will put in a electric fuel pump. Thanks for the help, I will try it with out the glass like resistor.


I hope I'm not too late with this, but if your bike is fitted with Dyna electronic ignition do NOT run it without a ballast resistor or you will fry it!
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'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

TheArtist
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Re: what is the glass resistor

Postby TheArtist » Sun May 01, 2011 10:54 am

I will check that today, thanks. Checked compression yesterday, had to buy a new gauge. The one I bought at vo-tec in 73 does not work. compression check excellent, 150# plus or minus 2 lbs. Took the carbs off, it was different than the one on the NGW club. Only took apart one carb to see the condition, the float was total froze. So I printed off the carb rebuild and will get some cleaner today.

TheArtist
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Re: what is the glass resistor

Postby TheArtist » Mon May 02, 2011 7:29 am

Old Fogey you are right on, I put it back on. Thanks.




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