KawasakiTrax Community
General Category => General Discussion => Topic started by: neworiginal on March 18, 2019, 02:41:08 PM
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Hello All, First post. I picked up a couple of invaders (80 340 and 79 440) for $300 a few weeks ago and have been wrenching on them. This site has been awesome. The 440 carbs are Mikuni VM 36's and have the vent tubes attached to plastic adapters on each side. Do these plastic adapters back out of the carb body? I dont want to soak any plastic in the carb bath. Doing new crank seals, fuel lines, all jets and rebuilding fuel pump with kit. This site has been very helpful with just using the search function. Also purchased a Kawasaki manual for both. Thanks in advance.
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Welcome to the site!
The short answer is yes they will come out.
The bad part is, they often break while trying to get them out. They are a press fit and 40 year old plastic that has been exposed to gas is very brittle.
I see in the pic that one of your power jet fittings is missing. The plastic fitting on the intake end of the carb. You should look for a replacement fitting. There probably is someone on here with some spares.
If your looking for manuals. There are lots of them available on Vintagesnow.com
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Thanks Lloyd, I was wondering what that was as this is my first time working on vm36's and figured I would need to replace it. I did see a jet in the one. The 340 has Mikuni VM32's and were pretty straight forward.
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Congratulations and welcome.
The vent fittings and the power jet fitting are pressed in. They are plastic over metal. I have removed them successfully using vice grips. Making sure I have a firm but not a crushing grip, I twist and pull at the same time. To put them back in they can be tapped lightly with a hammer or squeezed in a vice or press.
Note that the power jet has a hole in the side that needs to align with the casting.
I will add that I have never seen the plastic affected by carb cleaner.
Also, if squeezed too hard, they will shatter.
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Thanks mswyka. It looks like I'm going to just put them in the carb dip with the plastic adapters on after removing the floats, jets, gaskets, etc.
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I just went out to the garage to confirm that they are plastic over brass.
Here is a photo of a broken one on the carb and one that was removed. The one removed had some fire damage.
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Like Lloyd said, they are easy to break. I have broken a few in developing the best removal technique.
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Welcome to the site!! The answers so far are why this is the place to get your questions answered on these old sleds. :D
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Is anyone aware of the part number for my missing power jet fitting? Strangely it is not listed or numbered in the parts manual I found on vintagesleds. This may sound dumb but I am assuming the carb wont function without it.
Only found the 90 degree elbows. Still need the jet fitting. Can the power jet be removed from the plastic fitting?
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Is anyone aware of the part number for my missing power jet fitting? Strangely it is not listed or numbered in the parts manual I found on vintagesleds. This may sound dumb but I am assuming the carb wont function without it.
Only found the 90 degree elbows. Still need the jet fitting. Can the power jet be removed from the plastic fitting?
The plastic is cast onto the brass fitting. I don't believe that they can be purchased separately. I also don't know a part number. But if I was going to look I would start someplace like Carb Parts Warehouse. I may have a spare, just need some time to go through that part of the garage.
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Very much appreciate it mswyka. I am going to need a full carb now as I lost the battle trying to get the pilot jet out with extractor bits. Found a set on ebay and bit the bullet. I will have a good parts carb I guess. I'm humbled right now.
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You are not the first to lose that battle.
I have carbs but I am in Ontario. I will ship but shipping is costly.