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-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   what causes blower surge... (https://www.offshoreonly.com/forums/general-boating-discussion/299633-what-causes-blower-surge.html)

buck183 07-12-2013 12:28 AM
Originally Posted by ratman (Post 3957444)
land locked in costa rica and now medellin colombia, but that will be changing as soon as i get my container shipped down with my car, tools, and boat... im building a hotel/hostel on an island a buddy of mine owns about 20 miles off the coast of colombia... it will be a fun project.

how you doing dude, everything good? rm
All good my man. Can't complain.

Do me a favor and keep in touch. Would love to hear some of your stories around here on a regular basis.

Be safe,

Buck

Griff 07-12-2013 01:24 AM
The surge is caused by the fuel mixture being somewhat lean and by the the turning of the blower rotors.
The fuel mixture gets dumped/pushed in as the rotors spin. If you run them too rich at idle, then the plugs will start to foul out.

redwhite 07-12-2013 07:05 AM
There are two things that will cause it. Lean at idle will cause it and the throttle blades not having enough air gap at idle will cause it. If lean it is basically running out of fuel, dieing, then catching fire again when the fuel catches up. If the throttle blades are closed too much it can suck the throttle closed, again die, then the blade will open back up as the motor looses RPM. Is this a carbed or EFI set up?

.

ratman 07-12-2013 08:49 AM
Originally Posted by buck183 (Post 3957595)

All good my man. Can't complain.

Do me a favor and keep in touch. Would love to hear some of your stories around here on a regular basis.

Be safe,

Buck
will do, but most of stories are not work friendly. lol

ratman 07-12-2013 08:50 AM
Originally Posted by redwhite (Post 3957645)
There are two things that will cause it. Lean at idle will cause it and the throttle blades not having enough air gap at idle will cause it. If lean it is basically running out of fuel, dieing, then catching fire again when the fuel catches up. If the throttle blades are closed too much it can suck the throttle closed, again die, then the blade will open back up as the motor looses RPM. Is this a carbed or EFI set up?

.
carbed, a pair of 750 4150s

ratman 07-12-2013 08:58 AM
Originally Posted by buck183 (Post 3957595)

All good my man. Can't complain.

Do me a favor and keep in touch. Would love to hear some of your stories around here on a regular basis.

Be safe,

Buck
my usa tel number is 386-269-1111 give me a ring, we'll catch up

redwhite 07-12-2013 09:08 AM
Originally Posted by ratman (Post 3957701)
carbed, a pair of 750 4150s
Start with adding fuel to the idle circuit with the mixture screw. That will probably smooth it out then adjust idle speed with the blades as necessary.

.

ratman 07-12-2013 01:04 PM
Originally Posted by redwhite (Post 3957718)
Start with adding fuel to the idle circuit with the mixture screw. That will probably smooth it out then adjust idle speed with the blades as necessary.

.
im trying to make mine surge cuz it sounds cool as hell. lol

redwhite 07-12-2013 01:47 PM
Originally Posted by ratman (Post 3957809)
im trying to make mine surge cuz it sounds cool as hell. lol
Awwww sweet! Get that sucker rolling then throw a No Fat Chicks sticker on the air cleaner. :evilb:

.

tomtbone1993 07-12-2013 02:17 PM
Hey RM good to see you back....hope all is well. Tom


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