04-14-2021, 03:47 PM | #1 |
Getting Wild
Join Date: Feb 2013
Posts: 80
|
Help! Only runs at low rpm
2002 cc ds. Fe290 engine.
Bought this cart not running. Guy told me fuel issues. I’ve changed the gas lines, filter, 3 diff new carbs. And 3 different fuel pumps. Seems to be getting good flow of gas. I’ve played with throttle linkage, trans governor. Gas from can straight to carb. Valves are set where their suppose to be . Everything with zero affect. Am I missing something? Cylinder Compression check was 160 lbs. rev limiter is disconnected. Could it be electrical? Out of time? Am really at a loss lol. Any ideas would be great. Oh the fan and shroud melted down due to a fire from me trying to see if gas was an issue. So I’ll have to pull engine to change fan. But wanted to see if I could get it running the way it should before that. Gonna try and post a video. One more thing, I forgot to turn on gas when I took a video and the rpms did come up a little while it was running out of gas. I deleted that video though. Maybe it’s running super rich? Thanks. |
Today | |
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
04-14-2021, 04:00 PM | #2 |
Not Yet Wild
Join Date: Aug 2019
Posts: 40
|
Help! Only runs at low rpm
You have the carb hooked up the proper air box /air filter? They require that hooked up to run decent. The carbs are very finicky. I tried using a KandN filter and it flowed to much air and made my cart run poor. Just a thought
Sent from my iPhone using Tapatalk |
04-14-2021, 04:04 PM | #3 |
Getting Wild
Join Date: Feb 2013
Posts: 80
|
Re: Help! Only runs at low rpm
Yes they are all hooked up right. Only thing about the carbs is they are eBay specials. It didn’t come with original carb. Trying to post a video. Not ha I got any luck there either...lol.
|
04-14-2021, 04:31 PM | #4 |
Getting Wild
Join Date: Feb 2013
Posts: 80
|
Re: Help! Only runs at low rpm
|
04-15-2021, 07:14 AM | #5 |
Gone Wild
Join Date: Jul 2019
Location: Katy TX
Posts: 162
|
Re: Help! Only runs at low rpm
Hey Bud that's not a 350 is it?? It has that tall cap on the sparkplug cap usually found on the 290 and 350.
Even if it was a 350 with a 290 carb it should run better than that though....or so i would think. Oh wait you did say you checked the valves, so its probably a 290 then. I know there are a few 350 with adjustable valves but i believe they were early models that used the flat spark plug cap. Exhaust sounds a bit different. Is it possibly something in the exhaust clogging it? Fuel tank vent clogged?? If you open the float bowl right now will it drain fuel that it seems the float bowl was full? |
04-15-2021, 08:54 AM | #6 |
Getting Wild
Join Date: Feb 2013
Posts: 80
|
Re: Help! Only runs at low rpm
Exhaust has a hole in it. Runs same way with out exhaust. As far as gas tank and what not. I ran a gas can above engine straight to carb. Ran no different. Am really at a loss here.
|
04-15-2021, 09:27 AM | #7 |
Nincompoop village idiot
Join Date: Apr 2018
Location: Michigan
Posts: 9,690
|
Re: Help! Only runs at low rpm
Seems that ALL non-running carts, atv’s, anything is always “fuel related”. They say “just needs the carb cleaned” yeah... right...
I don’t know why the intake tube is collapsing the way it is. Are you sure the duct going all the way from under the coal into the intake isn’t clogged? Mud dobbers and stuff love to build nests in there and clog them up. Try opening the airbox lid. Also check valve adjustment. .0047 for intake and exhaust. Are you getting good spark? Remove the plug, hold it against the valve cover bolt and spin the engine. Is the spark strong? What color? Yellow? White? Blue? These engines don’t go out of time unless the rivets break off the camshaft gear... which happens but not that often. That’s an easy one to check. While you’re adjusting the valves you will have to turn the motor over to get to TDC. I use the clutch and turn it slowly by hand. If the valves move then the camshaft is fine. If the valves don’t move then the rivets are sheared. It can be repaired easily with some small bolts and nyloc nuts, you don’t necessarily have to buy a new camshaft unless it’s damaged. |
04-15-2021, 09:32 AM | #8 |
Nincompoop village idiot
Join Date: Apr 2018
Location: Michigan
Posts: 9,690
|
Re: Help! Only runs at low rpm
Edit: just re read you adjusted the valves. How far out were they? Particularly the intake valve? The exhaust valves almost never wear out but the intake valves do
|
04-15-2021, 09:32 AM | #9 |
Getting Wild
Join Date: Feb 2013
Posts: 80
|
Re: Help! Only runs at low rpm
Pretty sure intake tube and air filter is all good. I took apart and cleaned it. As far as valves go. There set at .05”. I’ll recheck valve movement and clearance again.
|
04-15-2021, 09:36 AM | #10 |
Nincompoop village idiot
Join Date: Apr 2018
Location: Michigan
Posts: 9,690
|
Re: Help! Only runs at low rpm
Something is wrong causing the intake tube between the airbox and the carb to collapse. I’m thinking it is Either it’s starving for air or something is with the valves. I’ve had a ton of these carts and never seen the intake tube collapse like that.
Do you have an original oem carb? Or just the aftermarket? I’ve never had much luck with aftermarket carbs |
|
|
Similar Threads | ||||
Thread | Forum | |||
Ezgo Txt Runs until you let off gas and solenoid clicks then only runs at 5mph | Electric EZGO | |||
Pds 36v runs slow....reverse then forward runs normal | Electric EZGO | |||
Cart runs fine until I stop then runs very slow | Electric EZGO | |||
82 club car, runs slow if you press pedal easy, runs normal if you hit it hard? | Electric Club Car | |||
G1, idles great, runs rough, runs better when warm | Gas Yamaha |