Dual Fuel Supply Diagram With Return.

[RX951]

My fittings are all plastic.

[ABBOTT]

all of mine are plastic. they work fine. kerry set mine up, so to me there is no question about it.

[GP1500SC]

here is a picture of what I have don to my stock carbs return lines to make it easy to get to my T-handles I made the hose to long so they would bow out of the way
also if you noticed I stuck some tape on the inside of the carbs and fill the choke holes with J B weld and will put my primer lines on oiler nipples since I am running premix any way it three less caps on my carbs

[RX951]

Very clever idea with the hoses to make the highs accessible !

[OsideBill]

Here is a great link with some return line pressure recomendations

http://www.novi.com/installation/TY-XRF-P.pdf

[RX951]

NOVI Dual fuel supply

osidebill, thanks for posting that. Good link

Here is the pic of it

[IrishGpr05]

Is this a good fuel pressure gauge to use?

http://store.summitracing.com/partdetail.asp?autofilter=1&part=RUS%2D650330&N=4294925228+4294925227+4294822101+4294907784+4294905539+4294907780+4294782460+115&autoview=sku

Thanks,
Jon

[RX951]

yUp

[ABBOTT]

I have never seen that diagram, but i bet some people wished they had a long time ago.

Good info by the way!

[IrishGpr05]

Is there a restrictor of some kind built into the carbs isn't?
If so does it need to be taken/drilled out for the inline restrictor to work properly?

-Jon

[RX951]

Yes, the stock carbs have restrictors built in.
Some people drill them out and use a common restrictor for all 3 carbs in the return line.

i.e.) Tap a brass fuel line barb on one end to accept a 80-110 main jet in the return line.

[John]

Do you have to drill them out? If so were are they located? Or can you just let them alone and install the restrictor in the return for the primer?

[mrbtd]

The links and pics from this post seem to be dead. I would like to add a restrictor in the fuel line.

I dont know where to start. I am hoping someone saved them ?

[RDH]

The links and pics from this post seem to be dead. I would like to add a restrictor in the fuel line.

I dont know where to start. I am hoping someone saved them ?

add the restrictor to the fuel return line,, add appropriate jets to acquire your designated pressure..

[mrbtd]

add the restrictor to the fuel return line,, add appropriate jets to acquire your designated pressure..

Is there anything that has to be drilled out ? I am guessing I should use a 105 jet ?

It is like the one on the bottom of this page ?

http://www.jet-world.com/partsacc_fuelsys.asp