Question about Dynatech
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Question about Dynatech
I am wondering if a bad battery can cause my 75 to miss and go dead at idle? I have a dyna on, but it just does not idle good. it is a old battery that will read 12,5v but when I put a tender on it. it will never show charged.
79 GL1000,75 GL1000,76 GL1000 LTD,70 CB750k JDM, 79 CBX, 2000 Valkyrie CT 2008 Goldwing Roadsmith
Trike and another 76 LTD bad shape, and several more for parts.
Trike and another 76 LTD bad shape, and several more for parts.
- gltriker
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Re: Question about Dynatech
Replace the battery. First.
When you get a new battery, Always fully and correctly charge it before connecting it to your vehicle's battery cables.
okay, I've edited out the battery tender stuff
When you get a new battery, Always fully and correctly charge it before connecting it to your vehicle's battery cables.
okay, I've edited out the battery tender stuff
Last edited by gltriker on Mon Jul 25, 2022 9:05 pm, edited 1 time in total.
Cliff (74yrs )
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
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RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
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Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
- Whiskerfish
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Re: Question about Dynatech
Try it at idle with the tender attached. I do that quite often when doing tuning work just to eliminate a weak charging system causing issues while extended idling.
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2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
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and a whole garage full of possibilities!!
Psst. oh and by the way CHANGE YOUR BELTS!!!!
"The book is wrong, this whole Conclusion is Fallacious" River Tam
2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!
Psst. oh and by the way CHANGE YOUR BELTS!!!!
- tlbranth
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Re: Question about Dynatech
Yo GL: I've always given my batteries an initial charge with a battery tender without problems. Those things are finicky sometimes though. I had a tender on my tractor and it always showed charging. I figured the tender was kaput but I switched the tractor one with one on my CB750. Now both show green. I hate electronics.
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
- gltriker
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Re: Question about Dynatech
Yo, yo self tlbranth
looking back in 6adan's older Topics history, I had noted another 12.5 volt battery installed in a 75 GL1000 was mentioned.
Perhaps, the same one?
upon second, and third, and forth thoughts I have edited out my original battery tender comment.
looking back in 6adan's older Topics history, I had noted another 12.5 volt battery installed in a 75 GL1000 was mentioned.
Perhaps, the same one?
upon second, and third, and forth thoughts I have edited out my original battery tender comment.
Cliff (74yrs )
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
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Re: Question about Dynatech
A while ago we had this discussion regarding low voltages and a Dyna, so I called Dyna and if I recall correctly the guys there told me that the Dyna is indeed voltage sensitive and requires at least 13v (if I remember correctly) to run correctly. So as the guy’s above stated you need to fix this first.
Also, where have you got the Dyna powered from, they (Dyna) recommend using the turn signal switched line which is not the best source so find another full powered switched source to power your Dyna, do a search here as there has been numerous discussions about using different power sources for the Dyna.
Also, where have you got the Dyna powered from, they (Dyna) recommend using the turn signal switched line which is not the best source so find another full powered switched source to power your Dyna, do a search here as there has been numerous discussions about using different power sources for the Dyna.
Red 1976 oe owner
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1980 GL1100
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1969 CL350, in the que
1976 LTD restored
1980 CBX , in the que, to fix the ignorant heavy handed owner
1981 CBX
1977 CB750 K7
2014 FJR OE owner, sold
1980 GL1100
1984 GL1200 naked
1969 CL350, in the que
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Re: Question about Dynatech
The Dyna is very voltage sensitive and running with low voltage can damage it. I power mine from the accessory port with a relay switched by the kill switch.
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Re: Question about Dynatech
I want to thank everyone for the help. It seems it was low voltage it is now running just fine. I have been working on two different 75s lately both having Dyna problems I thought, one was the other was the low voltage problem. Dannie
79 GL1000,75 GL1000,76 GL1000 LTD,70 CB750k JDM, 79 CBX, 2000 Valkyrie CT 2008 Goldwing Roadsmith
Trike and another 76 LTD bad shape, and several more for parts.
Trike and another 76 LTD bad shape, and several more for parts.
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Re: Question about Dynatech
I read post #7 and had to check to see if I had posted it. LOL.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
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You don't need a weatherman to know which way the wind blows.
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Re: Question about Dynatech
Kind of late, but Dynatech recommends trying a direct line of 12 volts to the Dyna. Safest way per my knowledge (highly limited) is a relay intercepting the current dyna feed, triggered to a fused source from the battery. As memory serves me, they are supposed to operate from 10v to 17ish volts. Any higher and the magic smoke escapes, any less and they die or idle poorly.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
- tlbranth
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Re: Question about Dynatech
I'm seeing lots of reasons here to stick with points and a Hondaman box.
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
- pidjones
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Re: Question about Dynatech
Good plan, but remember to keep the points cam lubed. With the electrical wear gone, mechanical wear is still there on the rubbing blocks.
"Love 'em all.... let God sort 'em out!"
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
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Re: Question about Dynatech
I see so many posts on here where someone says "electronic ignition" and then spits, with the implication that the points are always better. Then I read British bike mags where they almost always pitch the original Lucas system into the weeds and put on an electronic replacement. Guess we never knew how good we had it, from new.
- pidjones
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Re: Question about Dynatech
Lucas satisfies that argument.
"Love 'em all.... let God sort 'em out!"
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
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Re: Question about Dynatech
Points on British twins aren't too bad. They're a nightmare on the triples. I used to be ambivalent to whether a bike has points or an electronic ignition conversion, but the difficulty in finding quality replacement point sets has made EI more attractive to me.
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