Hello and I love all the info from this site as I have learned a lot from it. I have a question about my carb. I have a 1999 wide glide twin cam 88. At low speed, in first and second gear, going slow I get a hesitation and popping back through the carb and it seems as it’s gotten colder it happens at around 55mph also. I’ve followed your video and took the carb apart and cleaned it but it makes no difference. The bike has a big sucker air cleaner and screaming eagle open exhaust and I noticed the pilot jet was a 42 and the main is 165. My clymer manual states that I should have 65 pilot and 190 main. I feel like it is too lean with the factory but I am unsure of such a big jump in size from what the clymer manual says. Should I rejet or try to find a stock air cleaner setup and see if that fixes the problem. What Harley carburetor jets should I use? Thanks for your time.CHris
Not exactly sure why your m/c was ever jetted so lean. 42 & 165 are small for most evolution motors. Anyway, assuming your intake is sealed and your carbs accelerator pump is functioning correctly; we would suggest moving up to a 46 or 48 pilot jet and a stock 190 main jet. Play with your mixture screw and pay attention to the coloring of your spark plugs. You really can’t get into any trouble. Good luck Related Videos:
Carburetor Video Class
Got a 91 Softail. Previous owner said it’s cammed and now has SE heads on it. I purchased a pair of short pipes, make and model unknown. I believe they are 1 3/4”. After changing out the pipes I noticed a big difference in the way it runs and I get the popping when letting off the throttle. Just curious what size jetting I may need to go with to fix the issue
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I have a 1990 FLSTF with a ‘92 CV (non-California). Also running V&H pipes and Crane Cam. I recently added the pipes and rebuilt the card, leaving the existing Main Jet @ 180, but dropped the Slow Jet to 44 where I was able to get some response adjusting the fuel mixture resting now at two turns. A quarter turn in and she’s missing. She’s running good at two, but blows too much black - sooting up my fender. When I checked the plugs after the last jetting, they were grey with black at the tips. Dropping to 42 seems too low. Is this just an old Evo issue? Mike
Here in Southern Illinois a #48 pilot and #170 main works great. Have been to below sea level in New Orleans to above 12000 feet in west. No fouled plugs, no "coughs".
what is the actual size of the pilot jets? mine has a 42 and after sitting for 3 years is completely clogged..I opened it up with a .020 bit but afraid to go larger without knowing the actual size. I am 60 miles from a dealer and would rather get it going now and pick up a new one later...Tom
my polit jet is a 46 and my main is a 190 and it has great power but it is flooding and my plugs are black and at slow speed it jumps like its all cam up but it is stock can someone help me with it please thinkyou poppy
is a s&s carburetor a good carburetor on a 1999 88 twin cam
I got a 2000 stock wide glide and I got the same trouble re; the popping and the hesitation , and a got of trouble getting it to keep running I got a sneaking suspicion it running too lean. Other than this little problem everything is bang on. Spark plugs are looking good, anything else I should be looking at ? Beside the the obvious