Power jet IT175G - where's it go?

[Graeme M]

OK, I gotta ask. Where does the hose from the power jet on the carby go? I've been told to the carb overflow, but every photo I see seems to show the overflow hose, well, overflowing under the bike and the powerjet hose going to the front of the carb. But on my carb there is no sign of any spigot it could go to OTHER than the overflow. So what are the facts?

[Lozza]

Facts  (this is Ozvmx)  Depends if you have a add on or OEM power jet, the add on you remove the brass overflow tube and attach 1 end on the hose onto the over flow outlet and the other onto the power jet housing. The OEM power jet could have a boss in the float bowl drilled out to draw the fuel from.

[mboddy]

A non-powerjet Mikuni carby has a brass overflow tube inside the float bowl that connects to the overflow hose.
On the powerjet Mikuni this tube is missing and the spiggot for the overflow hose is used to connect the powerjet hose. 

[RED ALERT]

Just wondering what classes can legally run the add-on power jet kits?
I thought probably not pre75, but maybe pre85?

[mboddy]

Mikuni powerjet came out on 1979 Yamaha TZ350F and 1980 IT175G.

[Lozza]

Doc posted a pic from a Mikuni power jet carb from a snow mobile that was very early 70's.

[mboddy]

Doc posted a pic from a Mikuni power jet carb from a snow mobile that was very early 70's.

I would be very interested in that.

[Lozza]

Search function   (and the Suzuki section where all the knowledge is )

http://ozvmx.com/community/index.php?topic=17530.0


http://ozvmx.com/community/index.php?topic=1642.0


http://ozvmx.com/community/index.php?topic=11441.0

[Graeme M]

Thanks for the replies on this one. I am still confused though, but perhaps I will just not think about it. I have connected the powerjet to the 'overflow' spigot and that's how it's been since I rebuilt the bike. It runs just fine. But why does every photo show something different? Here's an example, tho it's a US spec bike. maybe that's the difference? Anyway, you can see the overflow is at the bottom beneath the air intake bell. But the powerjet hose sneaks off round the front. As it does in every photo of an IT175 I can find on the net. What gives??

[Lozza]

 They looked to tucked it round the front just for the photo. I have a few here and installed the Mikuni PJ kit and it says to remove the brass overflow tube inside the bowl and use the overflow outlet.

[bazza]

thinki have one in box of mikuni parts could check and take photo?

[Graeme M]

Go for it Bazza. I'm just curious now, it seems the overflow spigot is where it goes but it's weird that the parts diagram and any photos I've seen show something different...

[frostype400]

Here is my 38mm mikuni got the power jet with all the instructions still have the instructions somewhere I think.





It goes to the overflow I remember pulling the brass overflow tube out.

[bazza]

found my round slide power jet Mikuni but had used bottm bowl on somwthing else over the years

[Dino Rider]

Just had a look on mineand the carby bowl has two spigots, one out the back for overflow and one out the front for the power valve.