Morini s6s 19mm carb settings

Robertriley · Jul 13, 2011

Does anyone know what the original settings should be for the carb that comes on the Morini set-up. It's the Dellorto 19mm carb. It was running great but would stall like it wasn't getting enough gas(but was getting gas) when it was going down very long streets with out having to stop at stop lights. It wouldn't start for a while but wasn't hot. I let a kid mess with it and now it's way off. I should of known better.

Help please,

Chris

:-||

sportscarpat · Jul 14, 2011

Robertriley said:
Does anyone know what the original settings should be for the carb that comes on the Morini set-up. It's the Dellorto 19mm carb. It was running great but would stall like it wasn't getting enough gas(but was getting gas) when it was going down very long streets with out having to stop at stop lights. It wouldn't start for a while but wasn't hot. I let a kid mess with it and now it's way off. I should of known better.

Help please,

Chris

Check your filter and make sure your vent is working properly on the cap.

DaveC · Jul 14, 2011

As far as settings go there's always the ball park settings of 1 1/2 turns out from closed. Problem with generic settings is from carb to carb the same settings can bring different results. At least you would have a common starting point with 1.5 turns. Be sure and work on one setting at a time so you can undo things if it doesn't work.

I would think if you had to a small engine shop that repairs two-strokes that would be the place to go. Some of the stuff is so screwed up by the owners the mechanics learn to fix them, they can get you going in no time

dmb · Jul 14, 2011

DaveC is right, if the kid screwed the air adj tight it could ruin the carb [squished seat] and it wont idle, but it takes a tight screw to do that. but alot of carbs have been ruined that way.

Robertriley · Jul 14, 2011

I did the 1 1/2 turn and it started up then I had to set the idle way down. I sounds good but it sounded good before too. Pat, would the cap venting make it stall on long straight a ways? I does sound like it is starving for gas but the line is full after a stall. any guesses?

dmb · Jul 15, 2011

when it starts to stall shut off the petcock. then check to float bowl for gas. clear line sometimes fool you in that an air bubble is actually a gas bubble. [not much]

Robertriley · Jul 15, 2011

I was on it today and laid in the gas a bit and I saw the line starting to drain after about 10 seconds. I loosened the gas cap and down the fuel ran. I'm thinking it's the fuel cap vent not being large enough. Could this be the problem? Pat, is this what you were talking about? If this is the case what should I do. Can I drill the tiny hole in the cap bigger?

sportscarpat · Jul 15, 2011

The cap has a breather on the underside (1/8" NPT, 7/16 wrench size). Remove it and you will find a small internal plastic check valve. My guess is there is debri in the vent hole. Pull it all apart, blow through or poke a small wire through the hole and put it all back together. Make sure the check valve moves freely, too.

Robertriley · Jul 15, 2011

Thanks Pat,d mb and DaveC. So far so good but I haven't taken it on a long stretch yet. I think we are good. dmb, are you a Jeep guy?

dmb · Jul 15, 2011

thats me i sold the cj-7 360amc th400,it just sat to much and no one wanted to wheel anymore. should'a kept the yj 4 cyl air 25mpg. the cj would guzzle the gas but was real fast. livin in lakewood ment 2 hrs to get outa town at least. not like the old day's when the 91 was open after anaheim to the desert, and gas was a buckfifty. anyhow show up at vet's next weekend and i'll buy you a soda or beer. dennis

Robertriley · Jul 15, 2011

I was just guessing because your name looked like a jeep. I have a 2009 4dr JK w/35 tires on it. I get a whopping 10mpg frwy/street. Looks good but runs a $10 just to go to the corner market. What's Vet's, when is it and where? What does your bike look like? Are you running a Morini?

Thanks

dmb · Jul 16, 2011

vet's is motorcycle/bicycle swap meet at the longbeach city collage veteran's stadium parking lot by the old douglas aircraft plant. its about 2/3 motorcycles 1/3 cycles [topping events.com] once a month. everyweekend usally has something. i got my morini s5n mounted in a kustum kruzer roadster and hopefully my moped hubs laced tomorrow. its been going on for about 20 yrs now and its pretty big. mostly harley's but other stuff also, lots of different bicycles but hardly any china motor stuff. but i enjoy it alot and parking is free. $10 entry $9 if you ride in. its next sunday 7 /23/11

Robertriley · Jul 16, 2011

I was supposed to go there last month. My friend Kris went there with Manny from "Old School Garage". The 23rd is my BDay, I might be able to head down there without getting in trouble unless she plans something. I'll let you know.

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Morini s6s 19mm carb settings

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