Hey everyone, so I recently replaced the starter on my maverick. It's a 1974 250 i6 Auto. Car hadnt been started since last august when the starter crapped out. so the car sat all winter etc. Anywho, I replaced the starter, and some of the cables that looked pretty brutal from corrosion. and the car fired right up after charging the battery. I was seriously surprised. Idled high, (always has honestly I never got around to adjusting that in the summer when it was running) So I let it idle till it was pretty warm then I touched the throttle and it was chugging like mad. Running really rich. shut her down and knew I had some adjusting to do. Here's my issue. I got it running a bit better by adjusting the idle screw, but it will only run good on fast idle, or when the choke plate at the top is open, letting that extra air in. and once the throttle is touched it snaps closed and game over. I adjusted the fast idle screw a bit to help with the idle when it's open and thats better, but no matter what I do with the curb idle screw, it just runs really rich and dies out if I let it. Any help? Is my choke not working right? I looked on the auto choke cover thing for the mark to see where it was but there's no mark at all on the plastic cover to set it. I can take a video later tonight after work going over what I'm experiencing if that will help. Before winter the car ran decently. had a high idle in gear, slightly lower in park or neutral. would float level be something to check? I did check all the vacuum lines, none are leaking and all are connected
Your choke is not working correctly. It may be the adjustment. Try using the procedure in the following video:
Thanks guys, I looked at how to adjust it using this website http://1bad6t.com/Maverick/repair/fuel_system_05.html but my plastic cover has no mark on it. anywhere. so I can go off feel, but it doesn't really open or close just with spring tension, it's like it's catching on the idle screw. I'll get that video as soon as I can, we just dealt with a big storm so I gotta dig the car out of the snow again to get to it.
Good luck with the snow!!!! You do not need a mark. Numerous covers do not have marks. Next step, take the plastic cover off all together to determine if in fact there is a spring and if it is engaging the inside lever properly. The levers tab should engage the spring's tab or loop. Also the spring needs to be rotating in the correct direction. This can be determined by the feel of the choke lever as outlined in the video.
hmm. i'll take a gander to make sure the spring isn't broken. Just find it odd that even when the engine is warm it won't idle properly. yet in the summer it did.
Once engine has warmed hold/block the choke open, if it still doesn't idle correctly and won't adj, you have other issues that are probably carb related... This is especially so if it's too rich...
Took this video, not sure if it explains what I mean very well but hopefully this helps? Seems to be catching on the fast idle screw on the other side of the carb Totally new to carbs, but I love the idea of them and once I know how to work on them I'll like them even more. Not a fan of all the computer controlled stuff in newer cars which is why I bought this car in the first place. So excuse my ignorance when it comes to carbs, I'm here to learn
I'll also add that turning the choke cover towards the driver side, tightens the spring. Is that the correct orientation for it? Manual choke would be a nice change on this thing haha
I'll be fiddling with this a bit more later this week as it's supposed to finally be above zero again. hopefully I can figure it out.
I'm not very familiar with that carburetor in your video however, it would appear the lever you were fidgeting with should move freely. You might want to try some carburetor cleaner on the shaft.
yeah it does seem like it's getting caught on one of the idle screws. and judging by how quick it's closing, seems like the choke spring tension is way too high. Plan right now is to back that off and try and stop the catching it's got going on, and see what that does. Because the choke should be opening when warm, not snapping shut. kind of tells me it's got enough tension on the spring that it's just closing even when it should be warm enough to open. no idea how the thing was running in the summer like that. but I'll figure it out. the carb is only 2 years old, previous owner bought a re-man carb from NAPA.
so this video helped a lot on giving a visual on how the choke should feel when cold. gives me a great starting point does anyone have any idea on idle screw default settings. as in all the way in, then "X" amount of turns out to get a base setting to start from?
beautiful thank you. Is this for the curb idle screw, as well as the fast idle screw? or just the curb idle?
