Author Topic: Cable (nipple) checks on throttle and air  (Read 1154 times)

Offline Slide

  • Active
  • *
  • Join Date: Jan 2013
  • Posts: 12
  • Karma: 1
Cable (nipple) checks on throttle and air
« on: 10.02. 2013 22:10 »
Had an unfortunate experience a week ago when I pulled on the air lever (choke). The nipple on the far end of the cable in the carburettor came off and it was sucked straight into the engine (I assume). The engine rapidly died as the carb became fully choked off by the slider.  Luckily I was able to unscrew the top of the carb at the road side, take out the air slide and then re-start to get back on the way... hoping there was no damage to the engine.

Lesson - check the ends of cables before installing and do a tug test. This was a new cable.

Has anyone else had this happen to the air or throttle cables, any engine damage as a result?

Mark
Lambretta LD150 1956 ~6 hp
A7 SS 1958 ~30 hp
Ducati 996 2001 ~ 128 hp

Online chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 4156
  • Karma: 54
Re: Cable (nipple) checks on throttle and air
« Reply #1 on: 10.02. 2013 22:33 »
Hi Mark,
Same thing happened me recently with a throttle cable, fortunately before I started the engine
Shi*e pattern cables!!!!! cable was not tinned or splayed when made !! just a touch of solder at the end!!!!!

John
1961 Super Rocket
1963 RGS (ongoing)

Offline iansoady

  • Valued Contributor
  • ****
  • Join Date: Jul 2010
  • Posts: 471
  • Karma: 9
Re: Cable (nipple) checks on throttle and air
« Reply #2 on: 11.02. 2013 17:04 »
One reason I always make my own. I've never had a nipple pull off in 40-odd years.
Ian.
1962 Golden Flash (arrived)
1955 Velo Viper/Venom (departed)
2004 Triumph Tiger 955i (staying)

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5720
  • Karma: 66
Re: Cable (nipple) checks on throttle and air
« Reply #3 on: 11.02. 2013 17:46 »
yes I had a new rear brake cable snap while I had my total weight on it to stop the engine turning to tighten the clutch centre nut. lots of bruises in personal areas and a full on test of my then recent hernia repair.
the outer wires of the cable were the only ones soldered the rest just pulled through.
I have now changed my method of holding the engine still after pointers from this formum and jump from a safe distance on new rear brake cables before venturing forth and yes I have a solder bath to make my own
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

Offline muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 11062
  • Karma: 132
  • Lithgow NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: Cable (nipple) checks on throttle and air
« Reply #4 on: 11.02. 2013 18:53 »
 You might be lucky Mark, the nipple would be soft and may have gone straight through and out the exhaust without causing any damage. Find an engine reconditioner with an inspection camera to have a look down the plug holes.
 Same as Bill, rear brake nipple, but mine was coming into stop corner at Amaroo Park at full noise. Got the old sphinkter valve working  *eek*.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Online chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 4156
  • Karma: 54
Re: Cable (nipple) checks on throttle and air
« Reply #5 on: 11.02. 2013 20:46 »
Hi All,
Normally I make nearly all my own cables, the one that failed was a universal throttle cable which comes with one end already soldered, (or not as the case may be!!!) I had run out of small carb end titties, so picked up the universal cable from my supplier !
More shite supplied by the "W" brand *razz* *razz* *razz* *razz*

I recently bought one of those inspection cameras from Lidl  *smile* apart from the flexible fibre shroud being stiffer to bend than the "Snap On" one a friend has its great, it also a rotating screen function so as you can figure out which way up things are!! LOL
I wouldnt be without one now!!

Cheers
John
1961 Super Rocket
1963 RGS (ongoing)

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5720
  • Karma: 66
Re: Cable (nipple) checks on throttle and air
« Reply #6 on: 11.02. 2013 22:32 »
Hey I've got one of those John, last used to follow some electric cables under the bedroom floor (calm down lads it was just storage heating circuit)
Yes the which way is up thing can be a problem
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

Offline Slide

  • Active
  • *
  • Join Date: Jan 2013
  • Posts: 12
  • Karma: 1
Re: Cable (nipple) checks on throttle and air
« Reply #7 on: 12.02. 2013 21:24 »
Thanks friends, the inspection camera idea sounds good for peace of mind so I'll look for one of those, and I'll do a compression check. Hopefuly all will be ok. Only just restored her from scratch (A7 SS) with new liners and pistons, new valves and guides etc. So it had better still be ok  *ex*

Yep, I had used an off the shelf cable so as others are saying they can obviously be cr-p. The cable end was dead clean where the nipple had pulled off.  Have now soldered one firmly on from an old cable.

Happy motoring to all
Lambretta LD150 1956 ~6 hp
A7 SS 1958 ~30 hp
Ducati 996 2001 ~ 128 hp