New to the board
Arm chair racerNew to the board
I bought the new China carb, put it on, and no difference. Guess I'll try the intake manifold gaskets next. Was wondering if I maybe need a bigger main jet. The stock Keihin carb has an 82 main jet, and the China carb has an 85. Not sure what size I'd need to go to.
New to the board
Arm chair racerNew to the board
Ok, here's the update. Put the new China carb on it and no difference. Replaced the intake manifold (aluminum tube) gaskets at the carb and head and no difference. I cut them out of fiber gasket sheet material from Napa...did'nt think that would be any different than the Honda ones. Then I lowered the needle clip to the bottom, and that made the 1st noticeable difference. It runs good up through mid range, but still seems fuel starved at the top end. Thinking maybe I need a bigger main jet but not sure why a 110 would need bigger than the 85 that's in there? The thing seems to start and run good until full on throttle, then it wants to stall. There's got to be a way to get this to run better, but I'm running out of ideas...any help would be appreciated - thanks.
Putting Priorities in Order, Busier than ever.
Catch me if you can
Check to make sure all the intake tubes are connected. Even the one that goes into the airbox ( not the one from the air box to carb ). I had one that the tube in the frame had come loose. Ran with the choke on but would die without. Hooked the tube up and it ran like it was brand new.
New to the board
Arm chair racerNew to the board
have you thought about checking the fuel air mix screw.... didnt read all the responses so idk but its possible. check this video out https://www.youtube.com/watch?v=3k6T5riJpCA
(ARE'NT THOSE THINGS ILLEGAL!!)
Best Question Ever
First Time Rider
Arm chair racerNew to the board
Vacum gauge? 86125m
1982 big red
1974 atc 90
Life is hard, but its harder if you're stupid - John Wayne
New to the board
Arm chair racerNew to the board
Yea, I've messed with the air mix screw. Thing it doesn't seem to do as in the video is when I'm turning mine out, the idle never drops down. In other words, counterclockwise doesn't do anything. Same as on the old carb cleaned, and the new carb.Originally Posted by loosescrewkid
New to the board
Arm chair racerNew to the board
As far as I can tell by looking at it with a flashlight, it appears to be hooked up. Not sure how to get at that thing without dropping the engine.
New to the board
Arm chair racerNew to the board
Vacum gauge? 86125m???? Tell me more - I don't understand.
First Time Rider
Arm chair racerNew to the board
You can time with a vacum gauge
1982 big red
1974 atc 90
Life is hard, but its harder if you're stupid - John Wayne
At The Back Of The Pack
Arm chair racerAt the back of the pack
If it's running good except for wot, then I would check float bowl level and confirm that The fuel line and petcock are allowing enough fuel to flow.
New to the board
Arm chair racerNew to the board
Finally! Intake tube inside of frame had come loose. I hadn't checked this carefully enough. Put it back together and now she runs good. These things have a mighty finicky intake system. Thanks for everyone's help!
Got The Holeshot
Arm chair racerJust too addicted
Yes these trikes are very funny about a lot of things. If you don't have something just right it will throw everything off.
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