Hey guys / gals . I’m working on my 99 dyna . It’s bored over to a 103 , stroked , cammed bike has ran after build for a few years pretty strong always keep up on general maintenance such as oil changes , plugs , wires , battery on a tender when parked . I started to notice it would run sort of “poor” or less power threw out the throttle ranges then one day it wouldn’t fire up at all and would cough out the carb with a few turns to the motor while trying to start. I went right ahead and replaced all the gaskets from the intake manifold , carb , air cleaner . Still same symptoms . I’m curious as to if a bad map would do this . The bike has no voes sensor . I don’t want to buy a bunch of parts if it could be something else that I’m missing but I think it’s a map but have no experience with one going bad yet .
I also cleaned and checked the carb for leaks it checks out good

 

If your bike is carbed, you dont have a map sensor.

 

it has a map sensor on top of the intake manifold it’s a 3 prong sensor sets on top of intake manifold with a screw

 

Can chain tensioner, crank sensor, charging system. Check all three of these things

 

Gear driven cams , new crank sensor so I will start checking the charging system now thanks

 

Before you start randomly replacing parts, run the Diagnostics and check for ERROR Codes.

 

99 Also has a cam sensor unless you deleted it.

 

Issue has been resolved my buddy let me swap out his map sensor with mine and it fired up and runs smooth thanks for the help guys

 

My bad, didnt notice OP said it was a '99. No map sensor on my '98 EVO.

 

what kind of carb do you have, or do you.
I curious because I have same issue.