Subject: RE: Ambo carb problems
Author: Jeff Leek
Date: Apr 7, 2001, 10:52 AM
Post ID: 1706219889
Ian Adkins wrote:
| Jeff, I spent much time sorting out my carbs too. What I found was the float needles weren't seating properly and allowing gas to run into carbs and flooding them. Occasionally the gas would flow out the air filters. Not a good thing when the battery is right behind them :-) As far as the floats are concerned.....even after 30 years there is no reason why they should be leaking.....but easy enough to check. If they aren't full of gas when you pull them then place them in a can of gas and hold them under the gas. After a few hours you will know if they are leaking or not. |
Honestly, I didn't bother with that, and just bought new ones from
MI. My thinking is, "Now I know that they're ok."
| As far as the float levels, these are similar to other "bowl type" carbs. That is to say that there is a tang that you bend to adjust the float to the appropriate level. I think the manual has a numeric value that they say to set it at (let me know if you need that info and I will get it for you). |
No, neither of my manuals (a Chilton, and the origanal, aparently
translated by a mad Italian.) has this information. If you do have it,
that would be a nice thing to know.
| The way I have done it (as was stated in Guzziology...which you should get by the way) is to turn the carb upside down. The float should be parallel with the carb body. This is the only way I have ever checked the float level and I do not have a problem. By the way.....unless you have accidentally bent that tang I see no reason why the float would get out of balance in the first place. |
True, but I want to also make sure that the previous owner didn't
do that either.
| Which leads to my next set of thoughts. Be sure that the problems you are dealing with are not timing, ignition, compression, or head related. Do a good leak down test to isolate any problem areas. |
For berevity I didn't post list off the whole reason that we came
to this conclusion. Compression, timing, ignition (spark at both plugs)
is all good.
<snip>
| Good luck.....Ian Adkins |
Thanks, given the responses so far, I'm very impressed with the list.
Jeff Leek
'72 Ambo (project)
jkl-@ecst.csuchico.edu