I have just changed out both our fuel lines with a larger inside diameter clear fuel hose, on both our Kinroad Sahara 250cc.
I have a 135 jet in both and have seen no real change, other than the popping and occasional backfire on deceleration.
A good trick is to grab a large syringe and pupm enough fuelinto the fuel hose/filter and all the way to the carby,,, once its filled with fuel all the way back,,, re-connect to the fuel rooster,,, and away you go
chhers JJ in Ozzzzzzz _________________ James from West Ozzz
2 x 250 Sahara's 19gm sliders, Blue Polini 2000 clutch springs
135 jets-Irridium plugs-KnN air filters
http://s304.photobucket.com/albums/nn164/JJGOZ/?action=view¤t=Buggynightrider.flv
I put in my new clear filters last night, and the flow was immediate. My old white filter used to fill up completely, and stay filled. That tells me it was starting to plug up. This one holds only a few drops.. all the rest of the fuel is flowing straight through the filter and running much better. Never had a chance to run it very long, so I'm not sure if it's flowing TOO much (that I'd have to lower my jet size) but for the $2 these clear filters cost on ebay... it was a good investment so far.
_________________ 05' Carter Talon GSX 150 2R
39t rear sprocket
9.5g sliders
NGK Iridium Plug
H.O. Bando Coil
Dr.P Hit clutch (backup)
1500# torque spring (soon...very soon)
125 main jet
42 pilot jet
MRP Air Filter (rednecked)
Drilled out stock exhaust
I use the same filter, but picked up mine at local lawn garden tractor store. The ends allow to sizes of holes - I cut off the small ends and reamed out the larger one since I went with 3/8" fuel line. When I open my manual petcock, the filter completely fills up with fuel. The buggy was running real rich after this modification with the 150 main jet I had been running. This tells me that there was definitely flow restriction in the stock setup. I am now running a 140 jet and looking good.