BING CARBS

[TonyB]

Started my slow resto of the ktm 495 and found that the slide has worn into the body on the front side as if the air being sucked into it forced the slide against the front side of the body and wore into it. (which is probably what happenned) . So does anyone know if you can get new Bing carbs or get them rebored with an oversize slide , or parts for them??. Maybe a Mikuni carb might work well?

[Maicojames]

http://www.bingcarburetor.com/

Tony, this is here in USA, if it helps.

[Lozza]

There is an advertiser in Just Bikes or so that rechormes and resleeves Bings, but I would venture to say unless your an originality annorak just strap on a Keihin,Mikuni or Delorto and your problems solved with better carbs and greater range of jets/needles

[All Things 414]

I've bought lots of bits from Bing in The States (including a dandy T-shirt!) and they seem like nice people to deal with. Got a whole range of jets from them considerably cheaper than what a local was knocking out second-hand ones for.

And on the subject, for the last eighteen months I was running a bored out 38mm Mikuni on my bike.
My main man who does my engine work (Bruce Woodley) said that a bike of this capacity should really be running a 40mm carb. With nothing else to turn to, I put the original Bing back on, jetted it accordingly (seemed no big deal) and the thing really does CRACK now! Starting is not a problem and the stories I've heard about having to re-jet them every time you take the bike out haven't come to fruition.

I priced a brand new one at it was about $500 US + freight.

I think I'll be getting me one.......

[cappra]

Part of the problem is the cost of the Bing parts.  For the price of a new slide (which wear out fast!) and some other basic components, your almost at the price of a new Mikuni!
I do realize that the Bing generally will flow a little better than a Mikuni, but it's just not worth it for most guy's.  I run the Bing for as long as I can until they start acting up and then replace it with a Mikuni.  (especially on a big bore)  Besides, no carb is worth $500...

[firko]

Bings cop a lot of flack but the bottom line is that they work well. I had once Mikunis on my Maicos because everyone told me that it was the way to go. When I tried a 38mm bing on my 440 the bike truly opened up. I couldn't believe the difference. Within a week all of my Maicos were reunited with Dr Bing and I've never looked back. The carburate far better than Mikunis all through the range on piston port engines. Not quite so well on reed motors but still pretty well. I don't know about spending $500 on a Carby though. I can build a whole bike for that!
Hey 414, It must be cool having a member of the Seekers working on the Monty. Im impressed!

[TonyB]

Yeh if it roosted big time in 1983 with a Bing then it should roost again in 2008...the Bing must have worked, so I would prefer to run with the Bing even though it is a reed equipped engine, and so. I am really keen to talk with the guy that re sleeves Bings? anyone got his contacts handy???

[All Things 414]

I'm afraid poor ol' Bruce is that commited to the internal combustion engine that the irony of his Seekers connection would be wasted on him I'm sure..........

[Moto]

 Keep an eye out for them on US Evilbay.Last month I bought an excellent Bing 40 mm from a ktm 83 model for my 495 for $22 . Nobody seemed interested in it. Its a bit of a gamble on the condition, but they are still out there.Some wreckers in the US can also be a good source.

[Lozza]

There seems to be some belief about Bing's 'flowing' more which I can assure you is a crock of shit.There will only be as much flow as the pressure drop in the engine no matter what the carb is.Mikuni's just need the air correction circuit sorting.The Bing's downfall is the steel needle on brass needle jet which wears with use.

[All Things 414]

I dont mind replacing things. Or spending the dollars. I'm not saying it doesn't run good with the Mikuni. It does. It's the other 2 mm that's making the difference here and it is a notable difference. Met Ken Baker on the weekend who's son has won VIPER a number of times and guess what's holding the air-box onto the cylinder on that very fast 490 Maico? Swears by them.

[All Things 414]

Sorry Paul. Bruce didn't work on that bike. I think it may have been Stevie Wright.......

[Maico31]

A couple of guys here in qld with 490 maico's had their worn out bing carbies bored and resleeved to suit the slide to fix the problem and they swear by bings.

[TonyB]

Maico31 I would really appreciate a tip on who did the resleeve on the bings, could you find out from them?

[Maico31]

Tony i'll try to ring one of the guys tomorrow.