50mm bore, 35mph, please help

[Pierce ramsay]

ok, been keeping it around 20... does that sound good? jets still havent arived yet

[Pierce ramsay]

ok, jets havent come in yet but the plg has, so i indtalled that a couple of days ago as well as connected the oil and fuel lines as one, i am currently finding the best set up for the double fuel tank, thanks so much for your time. will have a how to up in about a week id say just to make sure i have tested and found the best!

[Trafficjamz]

ok, jets havent come in yet but the plg has, so i indtalled that a couple of days ago as well as connected the oil and fuel lines as one, i am currently finding the best set up for the double fuel tank, thanks so much for your time. will have a how to up in about a week id say just to make sure i have tested and found the best!

Can't wait to see how you do it.

[Bear45-70]

ok, jets havent come in yet but the plg has, so i indtalled that a couple of days ago as well as connected the oil and fuel lines as one, i am currently finding the best set up for the double fuel tank, thanks so much for your time. will have a how to up in about a week id say just to make sure i have tested and found the best!

My question is, "Did you just connect the line from the oil tank to the line from the petcock to the carb?" If you did, how do you shut off the fuel to the carb as the needle and seat are not reliable for stopping fuel leaks.

[Pierce ramsay]

yes bear thats what i did, but i put in a inline fuel shut off petcock, you know when you open under your seat, and theres a small little door right above the head..... simply replace the stock crappy button thing or what ever its called with a small nut and bolt..... no dont tighten it all the way, this makes it much easy'er to get down there.... and you put the shut of petcock right there in the extra tank's line....

[Pierce ramsay]

sorry guys, she seems to be gasping for fuel, and kinda sputtering i will post soon though

[JJ Joseph]

ok so here is the scoop
50mm bore poli
9:1 gears
8.5 rollers
28mm V8 exhaust
24mm carb (45,130jets)
ct intake
and i still only go 35-40mph

Something fishy here. A Dio with 80cc BBK (50mm bore) and stock carburetor should do 60mph with only a few drivetrain mods. If it's running clean, I suspect that your primary variator pulley might be the stock one. With an aftermarket variator pulley and wider 17mm belt, you should be getting to at least 50mph. But with a stock pulley and stock 15mm belt, you'll be stuck at 40mph. The 17mm belt will ride at the outside of the variator pulley (faster), but the 15mm belt will ride about 5mm in from the outer edge (slower). I always think it's nuts to bypass the Dio oil pump since it easily puts out enough oil for an 80cc BBK.

[Trafficjamz]

Something fishy here. A Dio with 80cc BBK (50mm bore) and stock carburetor should do 60mph with only a few drivetrain mods.

I always think it's nuts to bypass the Dio oil pump since it easily puts out enough oil for an 80cc BBK.

More lies

Stock gearing will not reach 60mph unless your engine revs past 13,000 RPM

50mm bore on a stock crank = 82cc (I know , I know......math make your head hurt

Honda made the pump supply enuff oil for 50cc not 82cc

Adding a little oil to the tank is a good idea. JJ is not going to buy you a new engine after his "GOBS OF BAD ADVICE" blow up your engine.

she is running better but i think still a little rich, now i can hit 40mph with out too much struggle.

40 MPH is still too slow.....

Use a sharpie marker to draw lines on the face of your variator, so you can tell how far up your belt is going.

What center spring are you using?

[kylebo]

make sure the float is set at 3/4 inch from the carb deck to the bottom of float with the needle spring not compressed. This happened to me my carb was not able to supply enough fuel when It ran high rpm. My oko came set at 1" way off from what it should have been.

[Trafficjamz]

make sure the float is set at 3/4 inch from the carb deck to the bottom of float with the needle spring not compressed. This happened to me my carb was not able to supply enough fuel when It ran high rpm. My oko came set at 1" way off from what it should have been.

What are you talking about? Clip position?

[Bear45-70]

make sure the float is set at 3/4 inch from the carb deck to the bottom of float with the needle spring not compressed. This happened to me my carb was not able to supply enough fuel when It ran high rpm. My oko came set at 1" way off from what it should have been.

What are you talking about? Clip position?

He is talking about the float height setting. Hold the carb body upside down and measure from float bowl flange surface of the carb body to the now top of the float (normally the bottom of the float).

[Trafficjamz]

Float height setting?

Show me where that setting is

[kylebo]

just like the pic shows but the float setting is supposed to be set holding the carb at about a 45deg angle so that the needle is just touching the seat. You will see a little pin on the needle that is spring loaded, make sure it is not compressed when you set the float hight. You set it by bending the tab that pushes the pin up in the seat.

[Bear45-70]

If the spring compresses from the weight of the float, it is bad and you need a new needle.

[kylebo]

http://www.allthingsmoto.com/forums/f-1 ... ary-13608/


this is a link to a guy who made a great right up on it. all OKO carbs should be the same as the one in the link PWK