Tri-z With Fuel in crankcase

[Just-Tri-It]

I was trying to start the tri-z and at each kick I noticed gas would quirt out near my right foot as the kicker went down. It was quirting out from gasket at bottom of jug. I pulled the jug and was about to install new gasket when I noticed gas all down around the crank. I siphoned all out but was wonder if a sticky float would have caused it to fill in like that and if that could have caused the gasket to get the leak. That can't be good for it to have that in it like that and what's the best way to check it later and to drain any out that may get in it?
I noticed the last couple of runs it ran rough and I thought I needed to adjust the carb but that would make it run rough also with the gasket broken wouldn't it
Thanks

[tecat-z]

There's always a bit of residual oil left in the crankcase from fuel and oil separation, and thats perfectly normal. With a blown base gasket, it will purge lots of fuel, as fuel is trying to be forced from crankcase, up through transfers. Your bike will not run correctly like this, and you felt it happening.

[Just-Tri-It]

Yes, well this was no residue, it sloshed when the crank turned. Could the gasket have allowed that much in or a stuck float?
Thnaks

[Billy Golightly]

I would be willing to bet money the float on the carb stuck open...Happened to me many times with a stock carb. Best way to get it out I've found is take the intake and reedvalve off, stick a blower nozzle from an air compressor down under the piston and letter rip for a bit till it blows all the excess out. Check the pipe too, its liable to be full as well.

[Killabee]

Also check the fuel pump. if one of the wafers in there has a tear or hole in it it will suck fuel right in to the crankcase through the vaccum line. Mine would bog pretty bad when I would get on it. After I rode it a couple of mins the pipe and crankcase would fill up with gas.

[Just-Tri-It]

yes, the exhaust pipe was full of gas too. I have a spare tri-z...may just take the fuel pump off it to be on the safe side. Don't know if I could tell if it was bad even looking at it. How can I tell if the float is sticking before I put the carb back on?
Thanks

[Just-Tri-It]

I would be willing to bet money the float on the carb stuck open...Happened to me many times with a stock carb. Best way to get it out I've found is take the intake and reedvalve off, stick a blower nozzle from an air compressor down under the piston and letter rip for a bit till it blows all the excess out. Check the pipe too, its liable to be full as well.

Are aftermarket carbs less likely to stick? What do other tri-z owners put on theirs. Is there a place that sells much Tri-z aftermarket stuff.
Is there away to hook the carb up off the trike to see if the float is sticking?
Thanks

[Tri-ZNate]

Are aftermarket carbs less likely to stick? What do other tri-z owners put on theirs. Is there a place that sells much Tri-z aftermarket stuff.
Is there away to hook the carb up off the trike to see if the float is sticking?
Thanks

Keihin PWK 38mm is what many guys use as a nice upgrade. Take a screw driver or a plastic hammer and tap the float bowl, this will usually unstick a float but when a float sticks usually there is fuel comming out the overflow

[Billy Golightly]

Well normally you could just leave the fuel line on, take the carb off, and turn the gas line on and wait for it to start peeing...but the Z pumps and operates with a fuel pump and that doesn't work unless the motors running...Hook up to an auxillary fuel line from the gas tank or from another machine thats gravity fed would be my suggestion.

[Mosh]

If you are leaving your fuel pump petcock on for days at a time,that could be causing the fuel filling up in the crank.

You can turn that knob sideways,and they wont fill up the crank case.When you are not riding it,it would be a good habit to get into.

I had no problems with OEM carb floats,but there is always that one time.I have seen them flood out from not turning the petcocks off.

[NOS_350X]

I have found when its full like that the easyest way to remove the fuel is to remove the spark plug, Flip the whole bike over and turn it over till no more fuel comes out.

[Just-Tri-It]

Keihin PWK 38mm is what many guys use as a nice upgrade. Take a screw driver or a plastic hammer and tap the float bowl, this will usually unstick a float but when a float sticks usually there is fuel comming out the overflow

If I got a Keihin carb for it would I have to do a lot of adjusting or just install and go. I'm not up much on jetting and major adjustments. Most places here don't work on 2 cycle 3 wheelers so I'm pretty much on my own.
Thanks

[DeePa]

bah jetting it isnt too hard.

i hate mikuni carbs, i have 2 triz's, and they both have 39mm keihin pwk carbs on them.

it takes some work to get them jetted right, but just start rich and lean it out.

i bought all of my carbs from esr250.com they come with 10 jets too.

mike

[Just-Tri-It]

I'm going to check out the site and the carb. Will it bolt right in on the intake or will I have to get another intake fitting also?
You say it come with 10 jets but since the tri's are stock will the standard jet that comes in it probably be ok. I may need a little guidance once I get it.
Thanks

[DeePa]

ok well keihin and mikunis use different jets so you would hve to start fresh.

You would need to boil/heat your intake boot to fit the new carb

You also need to stretch the airbox to carb boot, but that ones easier than the intake.

If your z is totally stock you should prob just rebuild the carb and fuel pump and see how it goes