Gas mileage problem + popping from carbs

[anthonygs1000]

I read a post here somewhere about abnormal vibration being carbs out of sink I looked but I can not find now

[CB900SS]

I read a post here somewhere about abnormal vibration being carbs out of sink I looked but I can not find now

Thanks for looking Anthony. The bike does idle very smoothly so I believe the carbs are very close in synchronization. I had a motion pro mercury set but the rubber top rotted on it and the mercury spilled. I will eventually get a morgan carbtune. But hopefully by that time the CV carbs will be on ebay and some mikuni RS's will be introducing my mixture to my motor.

[anthonygs1000]

I have a set of 29's on my gs1000 that bike is a gas hog every time I went for a ride last summer it was twenty dollars it adds up I also have a set of 36mm rs flat slides the pump is missing parts but I dont think i need the pump I will be using them on the new drag bike WFO all the time

[madjack57754]

Anthony, put my bike back in the garage.
I've got 2 1150's and carbs out of sync are not always felt. Another thing is cam chain tention might need adjusting. That seems to have quite an effect on my street 1150. Mileage drops to around 30 under sedate riding conditions and drops to 20 when the pace is picked up, if the tentioner is loose.
The big GS were never known for great fuel milage. My 1100's were just as bad. The 'Busa and Bandit are quite a bit more fuel frugal

[anthonygs1000]

what is that fairing doing on that e model anyway ? It hurts my eyes. Is that bike running 7.50 in the 1/8

[anthonygs1000]

7.50 inthe 1/8

I am running 7.50 at 95 mph with this 1980 1100.

[CB900SS]

Hey another E with a fairing... I need to find the stock parts to remove my fairing, but everyone things the side ears are worth their weight in gold.

Thanks for the advice Mad Jack, but my cam chain might actually be too tight(see my other thread). Hopefully I didn't damage it, I need to pull the adjuster and re-set it. Maybe I will score a manual tensioner pretty soon.

[Mysuzyq]

Anthony, put my bike back in the garage.
I've got 2 1150's and carbs out of sync are not always felt. Another thing is cam chain tention might need adjusting. That seems to have quite an effect on my street 1150. Mileage drops to around 30 under sedate riding conditions and drops to 20 when the pace is picked up, if the tentioner is loose.
The big GS were never known for great fuel milage. My 1100's were just as bad. The 'Busa and Bandit are quite a bit more fuel frugal

Hmm, I don't know.... quite honestly, my bike ('82 1100E) has not returned less than 39 mpg, with mixed-pace riding, whenever I've checked (sedate riding will yield 40+). And this is with 36mm Mikuni's and K&N pods....otherwise stock. Now running a manual APE cam chain tensioner.....the stock 1100/1150 item wasn't adjustable AFAIK, not sure what type is used on the GS1000. My friend bought an '07 Busa, and he too says it is surprisingly fuel efficient.

Tony.

[madjack57754]

Been a while since I looked at this thread. Yes the dial in is 7.50 but look at Santa Clause on top of it. 255lbs and the altitude is 4800ft. I've run 7.10 at 3800. All with 60k on the clock.
By the way just a "S" tank on a "ES"

[CB900SS]

So I finally set my cam chain tensioner and decided to go for a little ride.

First thing I did was go and fill my tank and check the fuel mileage. It only took 3.317 gallons and I went about 104 miles, giving me 31+ MPG. So I would agree with what was suggested about the fuel gauge not being accurate... Is there anyway to adjust what the gauge reads with whats in the tank?

Also I mentioned about the bike having some vibration that I didn't like... Well either I got used to it, didn't notice it during this short ride (too cold?), or it went away due to the correct tension on the cam chain?

[hampshirehog]

I guess you could try and make the fuel gauge more accurate, though I've just lived with the ones on my bikes and recognise when they're telling porkies.

I reckon you're best bet is to pull out the fuel tank sender and first check the resistance readings on full and empty to see if they are as per the manual. If they are the only thing I think you can do is bend the wire float arm to counter for the error.

[CB900SS]

I guess you could try and make the fuel gauge more accurate, though I've just lived with the ones on my bikes and recognise when they're telling porkies.

I reckon you're best bet is to pull out the fuel tank sender and first check the resistance readings on full and empty to see if they are as per the manual. If they are the only thing I think you can do is bend the wire float arm to counter for the error.

I didn't think about checking the resistance on the sender, but bending the bracket did occur to me.