Author Topic: gutless k2f  (Read 355 times)

Offline edboy

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gutless k2f
« on: 07.11. 2018 20:09 »
i have a k2f that had been overhauled and reconditioned a decade ago but now is giving me problems. it ticks over but gutless, breaks down on acceleration. poor spark. it must be the armature as i ve swopped everything over with a good working maggie.
rewind or condensor? i ve only done about 4,000 miles on this one and everything looks brand new.

Offline chaterlea25

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Re: gutless k2f
« Reply #1 on: 07.11. 2018 20:15 »
Hi Ed
That sounds like a faulty condenser,  *????* There were some crap slip rings around too  *ex*

John
1961 Super Rocket
1963 RGS (ongoing)

Offline edboy

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Re: gutless k2f
« Reply #2 on: 07.11. 2018 20:19 »
thanks for reply john.
that would be the easiest fault to cure as i have an easy cap condensor here. the slip ring is new and i ve belled out continuity.

Online duTch

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Re: gutless k2f
« Reply #3 on: 07.11. 2018 21:00 »

 I recently had an issue with mine, that had a very tiny hole burn through from the slip-ring and was shorting to the armature....Slip ring only replaced a year or so ago, only done a couple thousand miles- have a really close look at it if the easy cap doesn't fix it
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline edboy

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Re: gutless k2f
« Reply #4 on: 07.11. 2018 21:30 »
ok dutch. when i strip the mag i will take a close look.

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Re: gutless k2f
« Reply #5 on: 07.11. 2018 21:40 »

 PS- was a brand new slip-ring too, a white one from England...
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline trevinoz

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Re: gutless k2f
« Reply #6 on: 07.11. 2018 22:11 »
Those little holes are hard to see!!
I've also had one but mine was a black one.

Online bsa-bill

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Re: gutless k2f
« Reply #7 on: 07.11. 2018 22:25 »
are you talking about a different tiny hole than the one for a lubrication wick
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

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Re: gutless k2f
« Reply #8 on: 07.11. 2018 22:33 »

 
Quote
  are you talking about a different tiny hole than the one for a lubrication wick 

 I think so Bill- I'm cranky that I didn't end up with the S/R to take a photo, but was a burn hole no bigger than pin-prick size (if that) in the 'armature interface surface' of the white slip-ring, can only be seen disassembled
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Online lawnmowerman

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Re: gutless k2f
« Reply #9 on: 07.11. 2018 23:59 »
Hi Ed

I had very similar problems on a K2F that was only rewound about five years ago. Turned out to be soft carbon brushes which left a coating of carbon around the slip ring and cheapo pick-ups.
Cleaned up the slip ring and fitted decent brushes and pick-ups from Brightspark and it feels like a different bike.

Jim
1959 A10 SR
1938 Wolseley 14/60
1955 Ferguson TEF20 tractor
1965 Ferguson 135 tractor
1952 Matchless G80 rigid
1960 BMW R60
1954 Matchless G80S
1955 Ariel 500 VH
1951 Sunbeam S7DL
1960 Matchless G12 with Watsonian Monza
......and loads of lawnmowers

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Online Triton Thrasher

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Re: gutless k2f
« Reply #10 on: 08.11. 2018 07:16 »
are you talking about a different tiny hole than the one for a lubrication wick

The cam ring has a hole for a lubrication wick.

The cam ring is not the slip ring.

Online bsa-bill

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Re: gutless k2f
« Reply #11 on: 08.11. 2018 11:01 »
Quote
The cam ring is not the slip ring.

you right TT, I misread somewhere
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco