SHould this hose be connected? By redroush00 (Read 1,607 times)

[FrankenMech]

While I was waiting for parts to do my PDI I had time on my hands and you know what they say about idle hands....

I had to remove my snorkel to clear the baskets I put on my scoot. I pulled the cap with 4 holes off and just put it directly on the airbox instead of the snorkel. I have no screen or anything in the cap. My valve cover vent tube went to the side connector on the snorkel so I had to find somewhere else to vent it. I just have a hole in my airbox for it's drain, -no tubing. I ran the valve cover vent to a plugged off port on the side of my carb inlet tube. There is higher vacuum on the back side of the filter so to compensate I put a 1/8"ID orifice into the valve cover vent tube. I figure it will make my carb dirtier over time but a shot of carb cleaner when I change the oil should take care of that. I really don't know what the long term effects will be. I figure the loss of the snorkel will make the scoot louder but I have never had it running with the snorkel on to tell. The snorkel looked like an intake silencer system to me. I don't know anything though, especially about scoots. My auto knowledge all came from old school cars, trucks, and lawnmowers with points and condensers b4 them newfangled computors and electeronical igniters thingys.

[redroush00]

That piece is to balance the aif-fuel mix. If you remove it without up jetting i bet it wont run properly.

[FrankenMech]

OOOPPS. How can I tell if the air fuel mix is wrong? The scoot seems to be running well and breaking in nicely. I have great throttle response and no hesitations. I think the exhaust has a catalytic converter so my old Heathkit combustion analyzer won't work. I suppose I could weld in an O2 sensor bung. Do they make an exhaust port adapter for that?

[redroush00]

It must have been running rich then because most will stumble off the line with that removed. Whats your plug look like?

The guy that runs 49cc.com has a AF meter installed on his exhaust with a welded bung. Research 90GTVERT on you tube. Some awesome stuff.

[FrankenMech]

The plug is not coming out until I have to replace it. I have no feeling in my hands and I may have cross threaded the plug the last time I installed it. The scoot is running well so I will leave well enough alone at the moment. That snorkel looked more like an intake silencer of a type used on many vehicles than something to change the A/F mixture. I have no temperature related problems or starting problems. It starts at a touch of the starter button when cold. Warm and hot starts require that I crack the throttle about 1/4". Cold, warm, and hot idle are good.

[Alleyoop]

Like they say Frank,
If it ain't broke don't fix it, leave good enough alone.
Alleyoop

[redroush00]

If its too lean then youll be replacing that plug when you tear it down to rebuild it before the plug wears out. I have never seen a stock scoot run well with intake modified.

[shop242]

Mine is hooked straight from the valve cover,,, zip tied pointing down