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Weird sync issue..
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 3 times
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Re: Weird sync issue..
It would be interesting to see at what point these holes were added. Clearly it would seem that Bing decided somewhere on the run that additional ports might have been needed. I've never called Bing to just "chat", but I'm sure they would know.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
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Re: Weird sync issue..
I myself have never talked to the Bing guys, my friend at the shop has for other issues. St.
- skyler.robbins
- Posts: 228
- Joined: Sat Sep 22, 2018 4:14 pm
Re: Weird sync issue..
They said that my carbs are the earlier version and only came with one hole.
The later ones came with the two holes for better stability at idle and such so they added the second hole.
Also noted is that the earlier carbs had the steel mix screw, later had the brass... no difference in the 2 other than metal.
He thought that "maybe" swapping slides to see if that would help my situation.. gonna try it.
Will report back with anything new!
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
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Re: Weird sync issue..
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times
Re: Weird sync issue..
- skyler.robbins
- Posts: 228
- Joined: Sat Sep 22, 2018 4:14 pm
Re: Weird sync issue..
Well I tried swapping all the parts from the good carbs to the bad carbs.. each thing one at at time to see if anything would help.. nothing, same problem.
But all is well I hope...
There's another BMW owner here in town with some extra carbs that he's will to go for cheap.
They're the newer 70's version.. 64/32/11 and 64/32/12
According to Bing, they will work on my bike and these carbs have the 2 hole configuration.. I'll just swap out my new parts on to them since they're interchangeable.
At least I know everything else is in working order on the bike..
Picture for a visual..
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
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- Been thanked: 36 times
Re: Weird sync issue..
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times
Re: Weird sync issue..
When you say nothing changed did you mean the two hole carbs still run better and now, you are giving them back to your friend with the his parts or the original two hole carb parts and getting another set?
I wonder what Bing would charge to look at your original set of carbs and determine what is wrong with them? I know, it costs money to ship them to Bing and I am not paying, just curious, LOL. St.
- skyler.robbins
- Posts: 228
- Joined: Sat Sep 22, 2018 4:14 pm
- skyler.robbins
- Posts: 228
- Joined: Sat Sep 22, 2018 4:14 pm
Re: Weird sync issue..
srankin wrote: ↑Mon Aug 16, 2021 7:09 pmI am confused, did you swap the rebuild parts from your original carbs to the other carbs? So from the original one hole to two hole units?
I swapped my friends parts over to mine since I knew his were running great... I swapped out each item once at a time. My carbs didn't react any different with his internals.
When you say nothing changed did you mean the two hole carbs still run better and now, you are giving them back to your friend with the his parts or the original two hole carb parts and getting another set?
The 2 hole carb with his original parts are back together and on my bike.. it runs great once again.
I wonder what Bing would charge to look at your original set of carbs and determine what is wrong with them? I know, it costs money to ship them to Bing and I am not paying, just curious, LOL. St.
Not sure.. I suppose I could, but I have a great deal on some 2 hole carbs.. would be interesting though!