At last...

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Psycheonabike
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At last...

#1

Post by Psycheonabike »

Ok guys I think I might of discovered the issue with #2 not firing properly.

When the spark unit packed up and I refitted another a friend gave me to test I noticed after it was fitted a distinct ride or fall in idle speed when moving the wiring about.

This tells me there is a short somewhere in the wiring but I am unable to find it. When I move the loom and units about and the revs rise it's definitely firing on #2 then as the throttle response is infinitely better than it is when the reg drop a little.

So, this is a new one to me, how would you approach this?

Thanks,

Tony
1982 GL1100 Standard
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5speed
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Re: At last...

#2

Post by 5speed »

do you have a wiring diagram for your bike? it may turn into a follow each wire from beginning to end to find it.
I would go the simpler route first and check all the wires for obvious signs of a break, flat spots from being pinched in something..check all the connections for corrosion
1982 1100 standard. (sold)
1986 Yamaha FJ1200
2000 Yamaha Roadstar
1976 GoldWing. running but not on the road
1978 Goldwing. future cafe project.
2019 Can-Am ryker (boss's new ride)

2002 Shadow American Classic(sold)
1983 Shadow 500. (sold)
Psycheonabike
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Re: At last...

#3

Post by Psycheonabike »

5speed wrote:do you have a wiring diagram for your bike? it may turn into a follow each wire from beginning to end to find it.
I would go the simpler route first and check all the wires for obvious signs of a break, flat spots from being pinched in something..check all the connections for corrosion
Thanks, had a good to this afternoon and tightened everything up. No luck. In fact she's running rough now....not firing at all on #2 ... absolutely no change when I pull plug from #2 now. At least last week there was a small drop in revs.
1982 GL1100 Standard
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pidjones
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Re: At last...

#4

Post by pidjones »

Since everything for #1 is common to #2 except the wire and boots from the coil to the plug, that seems to have narrowed it down to your HT lead. Maybe try running it at night in a dark area looking for breakdowns.
Last edited by pidjones on Tue Jul 23, 2019 5:00 pm, edited 1 time in total.
"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
Psycheonabike
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Re: At last...

#5

Post by Psycheonabike »

Pft...so much for finding a solution...!

Replaced CDI X 2 and Rectifier now producing a healthy spark on #2. No difference to riding her though and pulling the plug on all except #2 make the idle drop noticeably. Pulling #2 makes no difference at all. Plug now wet and not sooty anymore.

Anyone want a bike? I'm pretty much done now.
1982 GL1100 Standard
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pidjones
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Re: At last...

#6

Post by pidjones »

Put a new plug in now that it is sparking good.
"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
Psycheonabike
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Posts: 149
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Re: At last...

#7

Post by Psycheonabike »

....ok, I'll try that one last thing before she's bound for eBay. I'm sure it's all solvable but it's all lost its fun factor now.
1982 GL1100 Standard
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