XJ650 Hitachi Carb Pics - VERY PIC HEAVY

Had 5 sets of these puppies in bits at once recently so clicked off a few shots...







































Here's something you don't want to see...

 

Green carbs!.

 

Wait till you see what they look like cleaned up 8)

I'm guessing thats the result of leaving gas and what ever else was sprayed in to them, sitting for a few months on the brass

 

Nice thread alive, the pics will be very useful for future questions. it might not be a bad idea to put this in the FAQ section

 

Alive, on a couple of those pictures it looks like one of the posts that holds the float rod in place has been repaired. Do you know if that was done (or can be done) just using something like JB Weld?

Oh, and wanna send some of those jets on a sea/air voyage to Texas?

 

Yes it has been repaired and not a bad job either. The post is exactly where is should be which would have been hard to get right. Know anyone that's good with a TIG welder?

Thing you have to remember is that these posts are soaking in gas all the time. Would JB weld be able to handle that? At the end of the day the post is just a holder of the pin, therefore as long as it's secure and in the position it's ment to be in, you should be good to go.

Are the Jets that hard to get?

 

Were those size 45 pilot jets what came stock in your bike? I'm in Canada and my bike came with size 43 pilot jets and the US bikes have size 40 pilot jets.

 

Yes they were stock in 1 of the 5 sets I have.... Needless to say that's the set going on the chop

 

Just to verify that what I think is true is really true:



Is this correct?

 

Yes, you are correct.

 

Give that man a COOKIE!!!! ;-)

Alive, I don't know other peoples experiences, but based on my own, yes it is THAT hard to locate the jets for these things. I think I have found a source for all of the stock jets except the Pilot Air Jet. That one seems to be nowhere to be found. Too bad I don't know how to machine parts up. I'd go into business supplying jets to XJ owners.

 

What I'd like to see is something that points out all the various passages inside the wee beasties. When I had mine apart (I didn't have any plates, either -- on the bike nor on the spare set I have) I tried to blow out all the passages, but I'm not sure I got them all. I'm not even sure where they all are. :?:

 

Here is a cross sectional view of a Hitachi Carb.

Richard
-----------
1985 XV700 Virago
1980 XJ650 Maxim

 

Now *that* is something I'd expect to see at a Carb Clinic. Now you need some classroom chairs, a blackboard...

...but isn't the pilot screw supposed to be on top, instead of on the bottom like the picture shows?

 

Yes ...

Also missing:

Enrichment Valve
Fuel Bowl Well and Siphon Tube
Upper Body Air Jets
Intake L/R Air Jets

 

So, it's like a really great diagram but almost totally wrong?

Must be from a Haynes manual............

 

Yes, but them there is probably a cross section of Hitachi carbs from something like a Kawasaki GPZ750 which do have the mixture screw underneath. Ain't no two carbs alike it seems.

Nice pics Alive, Now I see those jets and plates that these poor Hitachi owners keep talking about.

Alway been a Mikuni man so never played with Hitachis. Ain't I lucky :lol:

 

Hi guys, just a question. I have bought and replace the float needles on my Hitachi carbs for my XJ650. i am having problems running it (that is another story, will sync and colortune shortly). My question is this:
The ones in the carbs before were brass and the ones I received were silver Are they the wrong ones? Bought them from PartsNMore.com
Thanks

 

johnt:

Use "New Topic"

Float Needle Identification

Restate the question so others know to look.

 

Sorry, turns out that is a Hitachi from a 700 Virago. I thought I had pulled down the XJ as well.