Check the float level. Sounds like the carb is running low on fuel supply at those prolonged RPMs. Also the petcock can be abbreviating the fuel supply at high RPMs.I bought a 1998 dyna wide glide when I really getting in it it falls on its face about 90 mph or when I really getting one it in 4th or 5th I don’t think it’s a carb issue because I bought a new one and already mess with the jets a couple time but still does the same thing it runs good when I moobing on the back roads but as soon as I get on the high way it bogs down and falls on its face about 85-90 mph but then I can let out for a sec get back in it and it’ll be fine for a sec then do it again anyone ever seen this problem just looking for help
Check the float level. Sounds like the carb is running low on fuel supply at those prolonged RPMs. Also the petcock can be abbreviating the fuel supply at high RPMs.
Albeit your bike only has a stock top calibrated speed of 110mph. The stock ignition has an integrated rev limiter. If your bike has other than stock those specs change with the setup.
You didn't tell us what other mods your bike has yet. High flows, stage 1, 2 or 3 ? That info always helps the techs to figure shit out !
That 170 is small for 80" EVO. I would bump up to 180 main to see the difference but also do what I said for float level and fuel flow from the petcock. Does your petcock still have the vacuum setup ? Nothing wrong with that but there's a screen filter inside the tank on the petcock that might be slowing the fuel flow if dirty.Bike is pretty stock other than 2 into 1 cobra pipe
Set carb at 170 main 45 pilot
It does feel lit it running out of fuel after getting in it for a while
That 170 is small for 80" EVO. I would bump up to 180 main to see the difference but also do what I said for float level and fuel flow from the petcock. Does your petcock still have the vacuum setup ? Nothing wrong with that but there's a screen filter inside the tank on the petcock that might be slowing the fuel flow if dirty.
Remember stock speed is limited to 110mph if all other adjustments are in tune. So if you can get your bike to hit 110mph just doing the proper setup you've made it !
Please continue posting back so we all know you haven't killed yourself attempting to get to 110mph !
What you mean by thatAlmost sounds like vapor lock...
I had a 180 but up 170 because I thought it was just running to richThat 170 is small for 80" EVO. I would bump up to 180 main to see the difference but also do what I said for float level and fuel flow from the petcock. Does your petcock still have the vacuum setup ? Nothing wrong with that but there's a screen filter inside the tank on the petcock that might be slowing the fuel flow if dirty.
Remember stock speed is limited to 110mph if all other adjustments are in tune. So if you can get your bike to hit 110mph just doing the proper setup you've made it !
Please continue posting back so we all know you haven't killed yourself attempting to get to 110mph !
Vapor lock refers to the fuel tank not properly venting creating vacuum in the tank that restricts fuel flow to the carb. Easy way to check that. When it feels like the bike is running out of fuel crack the gas cap open, if engine function gets normal vapor lock played into that. Check the tank vent hose is all.What you mean by that
if you want to see if you're lean at hi speed get up to 65mph and go wide open for 3 or 4 seconds then back off about 1/8 throttle and if you're lean you will feel it pull a little .I bought a 1998 dyna wide glide when I really getting in it it falls on its face about 90 mph or when I really getting one it in 4th or 5th I don’t think it’s a carb issue because I bought a new one and already mess with the jets a couple time but still does the same thing it runs good when I moobing on the back roads but as soon as I get on the high way it bogs down and falls on its face about 85-90 mph but then I can let out for a sec get back in it and it’ll be fine for a sec then do it again anyone ever seen this problem just looking for help
