I have a 1978 enticer et250. It runs really rich. I can only ride the machine for about 2 hours and then the plug is fouled and needs to be replaced. I have not checked the oil injector as I am not really sure how. I do know that the only thing visibly wrong is that the intake boot basicly doesn't exist. It is full of holes and large cracks. Will this make it run rich. I thought that if you ran it without an airbox it would run lean. Any help would really be appreciated.
78 Enticer ET250 running really rich
- Thread starter rebjr615
- Start date
if it has the plunger type carb choke, Its more than likely gummed up
O.K. I finally got to look at the enticer and pulled the choke plunger out of the carb and it is working fine. It is very clean and the movement is free and smooth. I'm thinking the oil injector has to be out of adjustment. Does anyone have any info on adjustments? Thanks for any help.
SRX freek
New member
250 enticer
If the 250 is the same as the twins, there's a cable from the carb to the oil pump. At the carb end you pull the casing of the cable up from fitting and measure distance from end of casing to fitting. Most are around 7/8" gap. I don't remeber which way to turn to reduce oil flow
sorry. Maybe this will help. Are you sure it'''s oil fouled or to much gas?
If the 250 is the same as the twins, there's a cable from the carb to the oil pump. At the carb end you pull the casing of the cable up from fitting and measure distance from end of casing to fitting. Most are around 7/8" gap. I don't remeber which way to turn to reduce oil flow
sorry. Maybe this will help. Are you sure it'''s oil fouled or to much gas?
nope. that 250 has a linkage on the left side of the carb that runs the oil pump( as you sit on the sled) sounds like you have oil pump failure or it needs a new filter on the oil line if there isnt one.
sandmanmike1
New member
Oil Pump adjustment from my 78 250 enticer owners manual. I would supply a pic but my scanner is down. Hope this helps a little.
1. First, open throttle to maximum.
2. Line up the point of the pump control lever with the mark on the adjusting pulley cover.
3. This alignment can be done by turning the locknut on the top end of the pump control rod.
1. First, open throttle to maximum.
2. Line up the point of the pump control lever with the mark on the adjusting pulley cover.
3. This alignment can be done by turning the locknut on the top end of the pump control rod.
Thanks for the great info, I'm (sorta) sure it's the adjustment, I'll work on it this afternoon (I hope). I picked this machine off the side of the road 2 years ago while it was waiting for the garbage truck to haul it away. I have learned about it by just messing around with it. Thanks again - you guys are great!
sandmanmike1
New member
I bought mine from a guy I work with for 100 bucks. I put a 17 coil on it and got it too run a little. Notice I was missing a screw from the carb. I ended up doing a 34 mm Mikuni Rounslide carb conversion on it and removed broken gas tank and oil injection and replaced with a go cart gas tank and am doing pre-mix I used a old John deere pulse type fuel pump. Still tinkering with it little but am getting close to having it just right. Fun little sleds.
Well I went down and checked the how the pump control lever lines up with the line and they are right on when the throttle is fully open and it lines up like it's supposed to. SRX freek asked if it was getting too much gas. It has the Keihin carb with the diaphram pump in it. Besides rejetting is there a way to control the amount of gas going through? On the bottom of the carb there is a screw with a nut sticking out of the bottom, It looks like it controls the movement of the pump diaphram. I know I messed with that 2 years ago when I cleaned the carb - could that be making it run rich?
I know you checked to see if the choke plunger was free but did you check the freeplay in the cable, if its too tight it will just barely hold the plunger off the seat and make the sled rich all the way thru the powerband. You should have about a 1/8th inch slack in the cable before it moves the plunger, you can grab the lever and without pulling the lever up move it in and out from the holder a little bit, this means you have slack. You can also grab the cable at the carb and it should move up and won slightly, again indicating you have slack. I have seen this problem over and over again on sleds, choke cable too tight, makes them run rich, just a thought for you to look at.