300/440/550 88 550 fuel/air??? VIDEO

R

robby212

Location
nj


Notice the tape that is the only way it will run, it won't even sputter without it. Also I am running an older K&N filter I just didn't have it on for the video. some ppl have mentioned a primer kit but as you see in the vid with the tape It starts right up so I don't think a primer kit will fix it, will it?
 
Last edited by a moderator:
two81's

two81's

Location
Baytown Tx
Seems like the mixture could be off. It's running lean now. That's why it runs with the tape restricting air flow. It could be a plugged jet or an issue with fuel delivery to the carb.
Anyone else have an idea
 
R

robby212

Location
nj
I'm getting good gas to the inlet then I pulled all that of and got jet out and it was nice and clean. I also tried to richen it up by turning the low speed clockwise. I'm about ready to drop it in the water with the tape on lol.
 
gogetinkdone

gogetinkdone

Location
Btown MT
robby212 said:
I'm getting good gas to the inlet then I pulled all that of and got jet out and it was nice and clean. I also tried to richen it up by turning the low speed clockwise. I'm about ready to drop it in the water with the tape on lol.
Click to expand...

Dont do that! lol that motor will suck the tape in and then you will really have problems. Take the time to tune your carb, put new plugs in (NGK BR8ES) and make sure you gap them. CARB probably needs a rebuild. You can get a kit online for under 35 bucks. Dont buy winderosa only genuine mikuni kits. Check out this link for tuning http://www.greenhulk.net/forums/showthread.php?t=46316
 
Last edited:
naticen

naticen

Site Supporter
Location
wilmington, nc
Clockwise on the screws leans it out, but you have more issue than that if it even runs with that much tape on it. Did it ever run while you had it, did you change anything?

It obviously needs fuel bad. My guess is you don't have the return line running through the rev limiter and therefore have no restrictor to build fuel pressure. You could also have a bad fuel pump on the carb, a mostly rusted shut needle, a huge air leak from not hooking up the pulse line, or something else. Those are a good start though.
 
gogetinkdone

gogetinkdone

Location
Btown MT
naticen said:
Clockwise on the screws leans it out, but you have more issue than that if it even runs with that much tape on it. Did it ever run while you had it, did you change anything?

It obviously needs fuel bad. My guess is you don't have the return line running through the rev limiter and therefore have no restrictor to build fuel pressure. You could also have a bad fuel pump on the carb, a mostly rusted shut needle, a huge air leak from not hooking up the pulse line, or something else. Those are a good start though.
Click to expand...

Good point!!! return line MUST have a restrictor in order to run right. i believe .30 is the size
 
You must log in or register to reply here.
Top Bottom