Kawasaki Fj 180v car cleaning

Lawnboy18

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Started the Ybravo to see how it would run, well it surges and I am not surprised.

I have to clean the carb. I know how to do this, but I am not sure if it will fix the surging and I don't feel comfortable playing around with mixture screws (remove them while cleaning the carb). Also, I've heard about a surge spring on the carb. Where is that?

I tried to find info all over google, but couldn't find much. Even on youtube. Any help on how to do this would be really appreciated.
 

Fish

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To start, I would just remove the bottom bowl nut and drop the bowl off and have a look. Part#92154 Get a can to catch the dribbling {hopefully} fuel.
 

NHFree1

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To start, I would just remove the bottom bowl nut and drop the bowl off and have a look. Part#92154 Get a can to catch the dribbling {hopefully} fuel.

My FH451V would only run with choke on and would surge and/or stall with the choke off. I pulled the carb off but in hindsight only needed to pull the bowl as stated. The needle the float is connected to has a small hole in it where the fuel enters from the bowl. It was mostly plugged. Cleaned it out with a small piece of wire, reassembled, and has been running perfect ever since.
 

Lawnboy18

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Thanks a lot guys! Gonna look at it soon and come back with an answer!
 

Lawnboy18

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I was able to remove the carb. It would of been fun to have a fuel cut off valve... Removing the fuel line was a PITA.
Now I removed the bowl and looked at the float pin... I dont see much. I cant even remove the float pin, it is real tight in there. I am gonna start by removing the jets and clean them.
 

Lawnboy18

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Today, I opened up the carb and it was very clean. But, I still removed the main jet and the lower jet and cleaned them both. In all holes I was able to see light thru them. Then, I shot some cleaner thru the fuel line tube and also cleaned the hole where the needle float goes. I assembled everything again and installed it on the mower. I tried starting it and it didn't want to. I removed the air filter and changed the spark plug with a similar one (Champion) and still wouldn't start much. It would really puff slowly like it was dying. Then, I added oil, because it needed some. After messing around with the throttle linkage to get it wide open, it started. It ran like crap sounding a little low on the revs. I stopped it and it didn't want to restart. Alltho, cleaning the carb seemed to fix the surging.

I guess the final thing to fix would be the valves? Well, I am not sure how to do that and I would need to get the tool to calculate valve clearance. I am really getting discouraged here with this motor. Any help would be appreciated.
 

Lawnboy18

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I adjusted the vavles yesterday with a feeler guage that I bought. Before adjusting the vavles, I couldn't get the feeler gauge thru, so I guess the vavles were way too tight. I had to pull may times and it still did not run right. Any other ideas?

I also considered that maybe because of the cold, it isn't running right and that is why it is so hard to start?
 

Fish

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We need to re-explore your valve adjusting, did you check the clearances after you made sure that the piston was at TDC?
 
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