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Months of wasted work

  • Thread starter Thread starter sharpy
  • Start date Start date
S

sharpy

Guest
Just spent mths of looking for fault in my bike.Symtoms- runnning like a Suburau car at idle and loss of power down low and erratic running. Did carbies (3 times), leads,plugs, put old ing-coils back on to now avail. Then checked overflow tube on carbs and one was blocked causing fuel to flow into the motorat different rates. What a time waster that was but all the bike has had a tune now.
 
What would be nice is to have clear bowl's, like what's on Lectron carbs. You just take one look and you can spot the problem. If somebody make them they proable cost as much as Lectrons. To bad them don't lectrons for the streets either.
 
Here's an idea - straight from Holley carbs.

Drill holes in the side of the cabs right where the fuel level comes up and then tap the holes. Cap them with screws and gaskets. you could check the fuel levels by denter standing the bike and seeing the level.

Probably a good reason it would not work
 
holley

holley

metals to thin and you couldnt get to the center ones but a good thought
 
This kind of stuff is a pain in the butt and can burn you out. Good job though on finally finding it Sharpy. I'm glad you stuck it out and your current bike condition is your reward buddy :D
 
I would consider drilling the center of the bowl drain plug, fitting a 1/8" RC model fuel nipple and installing another nipple in the top/lid of the float bowl and connecting them with 1/8", clear model gas tubing. That would give you a gas level guage/tube. The same thing is done on homebuilt aircraft fuel tanks to show fuel level.

Earl


duaneage said:
Here's an idea - straight from Holley carbs.

Drill holes in the side of the cabs right where the fuel level comes up and then tap the holes. Cap them with screws and gaskets. you could check the fuel levels by denter standing the bike and seeing the level.

Probably a good reason it would not work
Click to expand...
 
earlfor said:
I would consider drilling the center of the bowl drain plug, fitting a 1/8" RC model fuel nipple and installing another nipple in the top/lid of the float bowl and connecting them with 1/8", clear model gas tubing. That would give you a gas level guage/tube. The same thing is done on homebuilt aircraft fuel tanks to show fuel level.

Earl


Didn't the factory do that ????????? with an adapter to check float level
Click to expand...
 
earlfor said:
I would consider drilling the center of the bowl drain plug, fitting a 1/8" RC model fuel nipple and installing another nipple in the top/lid of the float bowl and connecting them with 1/8", clear model gas tubing. That would give you a gas level guage/tube. The same thing is done on homebuilt aircraft fuel tanks to show fuel level.

Earl
Click to expand...

Older Ski-Doo snowmobiles use the same method for measuring fuel tank level. They run a clear piece of fuel line verticle against the tank. Problem is after 25 years the fule line gets yellowed, you cant see the fuel in the line , and you always run out of gas!
 
My Honda Service manual details checking float levels that way on the cm400. There is a petcock on each fuel bowl.
 
I just picked up a stock set of carbs that had what the guy called a "Dial-a-Jet" installed. There were nipples screwed into the float drains that led to the intake boots maybe? Anyone know what I am talking about? The boots didn't come with them, but I was pretty happy to get those float bowl screws with a nipple. I'll just cap them off and when ever I need to check the float level, I'll fix some 1/4" clear hose to them. Cool stuff. Now I just need to find some way to cap them off.

Next project will be permanantly attaching the connecting tubes for the carb synch gauge. I'll be able to check float level and the synch of carbs in a matter of minutes- before my Sunday morning ride!
 
Jethro said:
Now I just need to find some way to cap them off.
Click to expand...

Just get yourself a set of regular unmodified plugs and swap them out with the ones your talking about when it is time to check the levels and then back when your done.
 
Jethro said:
I just picked up a stock set of carbs that had what the guy called a "Dial-a-Jet" installed. There were nipples screwed into the float drains that led to the intake boots maybe? Anyone know what I am talking about?
Click to expand...
"Dial-a-Jet" worked similar to powerjet carbs on 80's model TZ yamaha's, I've seen them advertised in early 80's Hot Bike magazine, they got fuel from the bottom of the float bowl then had a tube going to a jet fixture that was fitted to the top of the carb bellmouth where the airbox ducts fit to, the idea was at high revs it would draw extra fuel, don't know how well they worked but on TZ's powerjet carbs were a good thing.
 
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