The CB1100 Community Forum

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(03-13-2018, 11:02 PM)Houtman_imp Wrote: [ -> ]Single carb bikes are easier to deal with than some the bikes I owned : CBX's , VF 1000 R's and other 3 or four carb bikes.
On my carb bikes I always used Blue Stabil in the winter months

I always drain the carbs and gas tanks on my non EFI bikes before winter storage.
Effortless starting in the spring with fresh gas.

Carbs have only been a problem for me when they were allowed to sit idle with deteriorating gas. My CB750 has been in service for 22 years and is ridden regularly. The carbs on that bike have never been touched in over 50K miles.*

My buddy had the identical bike, but after getting a new bike, his CB750 would sit for 4 or 5 months at a time. He was continually plagued by carb issues. I finally convinced him to sell it, rather than pulling the carbs for cleaning every time he wanted to ride it.

I often hear that fuel injection is better because it's not susceptible to these issues. I've often wondered about that. Wouldn't old gas tend to gum up the small passages in the injectors, in the same way it plugs up small idle circuit passages and jets in carbs?

*Both of my CBs get a Seafoam treatment every 3 or 4 months to keep fuel system varnish deposits to a minimum.

Carbs have been great for me , other than the two years i was without a CB750 because my 69 model was stolen i owned at least one CB750 all these years. It takes me 15 min to remove the carbs but a full hour a piece to rebuild and reassemble taking my time to mechanically synchronize them without gauges and always ran and idled well.
so for over 45 years of riding cb750's i did 3 rebuilds , not bad at all.
hated to see the last one go and never had a fuel pump problem --- like i may someday have now !!!!!
have used Seafoam for years and now my carbureted Trucks split a bottle every now and then

the CB160 and 305's were actually fun to rebuild and so simple and easy but I did run " Marine Fuel " aka non ethanol because it is everywhere here and better on carbs

Historic side note - my family was producing ethanol a long time before the government got involved ......

(03-14-2018, 08:09 AM)use2b_imp Wrote: [ -> ]Carbs have been great for me , other than the two years i was without a CB750 because my 69 model was stolen i owned at least one CB750 all these years. It takes me 15 min to remove the carbs but a full hour a piece to rebuild and reassemble taking my time to mechanically synchronize them without gauges and always ran and idled well.
so for over 45 years of riding cb750's i did 3 rebuilds , not bad at all.
hated to see the last one go and never had a fuel pump problem --- like i may someday have now !!!!!
have used Seafoam for years and now my carbureted Trucks split a bottle every now and then

the CB160 and 305's were actually fun to rebuild and so simple and easy but I did run " Marine Fuel " aka non ethanol because it is everywhere here and better on carbs

Historic side note - my family was producing ethanol a long time before the government got involved ......

So, should we hold you to account for giving them ideas? Tongue

(03-13-2018, 06:06 AM)PowerDubs_imp Wrote: [ -> ]
(03-13-2018, 05:39 AM)Bheezy27403_imp Wrote: [ -> ]Pfft. I love carbs!

I hate carbs. Bad enough to maintain on my single cyl dirtbikes-

I bought a ZRX1200 in 2012, rode it home from the seller on the highway, no problem. Took it out for the next ride and a few miles in- it spit, sputtered and died. Sucked some cuss up in a carb. Managed to get it started and home but I parked it and haven't touched it since. No joke.

Bought the CB1100 almost 2 years ago now. Not a problem. The ZRX is pretty to look at though.

I hate carbs. Bad enough to maintain on my single cyl dirtbikes-

I bought a ZRX1200 in 2012, rode it home from the seller on the highway, no problem. Took it out for the next ride and a few miles in- it spit, sputtered and died. Sucked some cuss up in a carb. Managed to get it started and home but I parked it and haven't touched it since. No joke.

Bought the CB1100 almost 2 years ago now. Not a problem. The ZRX is pretty to look at though. Smile

This is precisely the reason why I chose the CB1100 over a used ZRX for myself...

And it only highlights the missed opportunity that came when Kawasaki failed to export the later DAEG version out of the Asian markets. It was fuel injected and had a black powder coated swing arm; the two requisite things in my mind to make the ZRX darn near perfect.

(03-14-2018, 07:45 AM)Flynrider_imp Wrote: [ -> ]Carbs have only been a problem for me when they were allowed to sit idle with deteriorating gas. My CB750 has been in service for 22 years and is ridden regularly. The carbs on that bike have never been touched in over 50K miles.*

My buddy had the identical bike, but after getting a new bike, his CB750 would sit for 4 or 5 months at a time. He was continually plagued by carb issues. I finally convinced him to sell it, rather than pulling the carbs for cleaning every time he wanted to ride it.

I often hear that fuel injection is better because it's not susceptible to these issues. I've often wondered about that. Wouldn't old gas tend to gum up the small passages in the injectors, in the same way it plugs up small idle circuit passages and jets in carbs?

*Both of my CBs get a Seafoam treatment every 3 or 4 months to keep fuel system varnish deposits to a minimum.

Does the pressure from the fuel injectors keep the passages cleaner , not relying on gravity for the fuel ?

Yea. FI engines can sit for years and run fine. Been there, done that.

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(03-14-2018, 11:51 AM)PowerDubs_imp Wrote: [ -> ]Yea. FI engines can sit for years and run fine. Been there, done that.

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agree , my hurricane generators set for years and are so dependable because i always ran them dry and sprayed a light oil or WD 40 mixture in the carbs just before they died and had no problems with sticking.

old school stuff !

hahaha @ BMW Big Grin

...and their biased riders (mostly GS riders that think their LC is the holy grale of the motorcycling world)

Being from Belgium, a neighbour of Germany, you can imagine the GS is a mighty popular bike in the streetview.

Not even mentioning their arrogance.
True story when reading through posts in a general Belgian/Dutch motorcycle facebook group, being flooded by GS riders and how great their bike is, not open for anything else.
And worst, not tolerating critisism.
If so, get ready for a storm.

Riko,
Ducati rider Blush