Going to spend a half day on it and recheck
Thought I had good spark The plugs look the same

I dont think it was it was parked in a trailer for a short time said the previous owner I think thats where maybe some damage happened Going to have to recheck some things and try again The darn thing should run I have 3 34 carbs no idea what they are from can I swap parts off the original or are th...

There was a mouse nest in the airbox so I am suspect of damage Cleaned carb and carb kit and fuel pump kit Dumping some fuel at exhaust joint Compression is 145 per side and good spark Sled has 417 original miles will growl with a thimble of fuel down the cylinder Guessing the sled has not run since...

Found 3 34VM mikuni carbs to replace the original carb. The original has 34124 stamped on it and the others have 3493,34A309 and no number. Are they the same carbs. Still have a fuel delivery problem. Got spark,compression and a rebuilt fuel pump.Fuel is getting to the carb. want to use one of the d...

It is looking good,the restoration on my 77 440 Cyclone is almost finished as well. Finally found a carb for it,Hopefully I can find the time to get it running.
You will enjoy riding this sled,comfortable and stable. I think this the most reliable sled John Deere made.

Thanks will check the reference,mice got in the original.

Is a mikuni carb off a 1978 340 Liquifire useable on a 1977 440 Cyclone ?

There was a mouse nest in the airbox, never made the connection till now.Thanks.

That's what I am thinking. Do they pit or oxidize over time?

Yes

The bowl is filling but fuel is not delivered to motor.

Had this carb off twice,cleaned well with carb cleaner and has a new carb kit.
Still not getting fuel to motor,plugs dry.
Fuel pumps @ carb into cup.
Machine has not run for a long while,have lots of spark and compression.Thanks.

Great site for information and tips.Thanks for the site.
Was and still is my go to for restoration projects.
Someone on here will always answer your questions.

Contact cement.

Price drop,now $850.