| Author | Message | ||
     Steven_vuyk |
Hey guys. I have a problem when opening wide for a certain amount of meters. As if it starves. Then i let off and she gets idle again and off i go. But 3/4 throttle is perfect. Any tips or ideas as to what it could be? | ||
| 651lance |
If you have your stock CV carb check the slide diaphragm for holes or tares. | ||
| Ralph |
First I'd check the petcock to make sure the screen isn't plugged up or some other problem with flow. If that's good, I'd check the float level next. | ||
| Steveford |
If not a clogged petcock time to buy a gallon of Gunk HydroSeal, strip the carb and give it a soak. | ||
| Steven_vuyk |
Thanks guys. Ok my petcock and fuel line is checked and all clear. I did find a nice video on youtube by "shane conley" on float level adjustment. i'll try that next and post again. | ||
| Lakes |
Steven, i read your post, and i thought you were riding the bike and motor was under load and when you give it WOT while your riding it cuts out. but after reading the post. i think the bike is stationary & you just started it, and giving it full WOT while it is still ( not moving or undderload) so is it happening when it is idling? & what carb? Lance right could be leak in diagram if it's a CV, but i just remove the air cleaner and look at slide while motor is running, then give it throttle see if slide goes up, if not it has a hole in diampram. i think i have ridden Harleys with CV carb since 1997 still have not had a hole in diagram yet. | ||
| Steveford |
I did put a diaphragm in where it wasn't fully seated and it would fall on its face as soon as you gave it the gas. Won't do that again! | ||
| Steven_vuyk |
Lakes. Yes i am riding perfectly fine throughout the whole throttle range except for when im gunning to keep up with the guys at 5th gear or 4th gear. I cant tell you my rmp coz i have to install clocks. Bought it without. But its quite high rpms for a certain amount of meters. | ||
| Ralph |
Steven, is this a new problem that just started? | ||
| Brother_in_buells |
Could be that you over revving it! Or the voes is not working as it should!? | ||
| Dannybuell |
if the gas tank breather hose is semi collapsed it will run fine until the WOT when fuel consumption increases. if the tank does not let in enough air? fuel starvation. | ||
| Steven_vuyk |
@Ralph no its been like that since i bought it second-hand. @brotherinbuells I've tested the voes seems ok. At first I found a loose wire but still had the issue. @dannybuell I have a short tube on as a breather but even tested it with my tank cap loosened and still happens | ||
| Steveford |
You might be hitting a rev limiter like Brother in buells suggested. | ||
| Lakes |
Steven , if you remove gas hose from carb, get a container to catch gas with, turn the petcock to on then reserve, if gas flows out freely , turn that off and re connect to carb that tell's you your getting gas ok, & if motor pulling strong till it cuts out at full WOT , i would guess you are hitting the rev limiter , if no clock to tell you what rev the simplest thing i can think of to solve this is a shift light that you can set at any rev. keep re setting shift light to come on at a lower RPM till it comes on just before motor cuts out, so you can shift up a gear before it cuts out. i keep my rev limiter set at 6,000 as these motors last longer if you don't rev them over 6,000 good luck with it. i have Dyna p ignition module that mounts like stock unit but you can select advance curve and set rev limit, it's a good unit. | ||
| Steven_vuyk |
OK I managed to get the time to remove the carb.(first time since I own her). first thing I checked was the accelerator pump diaphragm has cracks. second was the float level was lean. also noticed the previous owner had caused a few problems when he had it. for example cracked the diaphragm cover. the pin holder for the float needle was repaired with the same epoxy as the cover... called it a night for now. could any of these make it cut out and starve like I explained above? it doesn't feel like rev limiting... it's more like I've gone over to reserve if I had to put it that way. like it's starved and gets fuel again after freewheeling for say 50 meters | ||
| Dannybuell |
the accelerator pump diaphram | ||
| Natexlh1000 |
So the float level was too low? Does that mean the previous hack jetted it too rich so that it would run? |
