Mikuni Carb Help

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Tom Winter
Posts: 16
Joined: Fri Feb 20, 2009 2:27 pm
Location: Lake Wylie, SC

Mikuni Carb Help

Post by Tom Winter » Thu May 28, 2009 8:32 am

Need help with rebuilding this carb.
Can not figure out what model it is?
34mm?

Having trouble getting fuel from tank to carb. No suction.
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VirgLove
Posts: 220
Joined: Mon Jun 18, 2007 8:52 am

Re: Mikuni Carb Help

Post by VirgLove » Thu May 28, 2009 9:07 am

Is the pulse hole clear. Sometimes the base gasket gets reversed or some gasket sealer plugs the manifold closing off the pulse hole. I think Kermit Buller of Buller Built (402-723-4713) may still have some rebuild kits.

ted johnson
Posts: 1685
Joined: Fri Jun 15, 2007 7:59 am

Re: Mikuni Carb Help

Post by ted johnson » Thu May 28, 2009 9:15 am

Hi, Tom. It's a standard 34mm Mikuni. I have 5 of them. Call Dave Bonbright at 707 938-8122, or John at EC Distributing (615)446-6807 for a kit. the diaphragn kits are getting scarce. Be sure your fuel tank vent has NO restriction, and that you have a clear pulse path from the crankcase to the carb flange thru the reed cage flange. Be sure the flange gasket pulse hole lines up with the hole in your manifold, and that there is no path from the pulse hole to the outside air. The Mikuni is a great carb and easy to tune, but you MUST have good fuel supply and a good crankcase pulse. If it needs rebuild, John at EC is very good. If you want to run alky, John, or Dave Bonbright will do the mods. Good luck! Ted

Tom Winter
Posts: 16
Joined: Fri Feb 20, 2009 2:27 pm
Location: Lake Wylie, SC

Re: Mikuni Carb Help

Post by Tom Winter » Mon Jun 01, 2009 1:17 pm

Thanks, Got the carb rebuild kit on order. Will see if that fixes it.

Tom Winter
Posts: 16
Joined: Fri Feb 20, 2009 2:27 pm
Location: Lake Wylie, SC

Re: Mikuni Carb Help

Post by Tom Winter » Mon Jun 01, 2009 9:03 pm

installed the carb kit today, engine fired right up.

ted johnson
Posts: 1685
Joined: Fri Jun 15, 2007 7:59 am

Re: Mikuni Carb Help

Post by ted johnson » Tue Jun 02, 2009 6:40 am

Tom, ain't that a good feeling? TJ

Tom Winter
Posts: 16
Joined: Fri Feb 20, 2009 2:27 pm
Location: Lake Wylie, SC

Re: Mikuni Carb Help

Post by Tom Winter » Wed Jun 10, 2009 9:00 pm

Its fantastic, rode the kart for the 1st time today. WOW. Im running it, L 1-1/2 out H 1-1/4 out.

seems to bog a little at wide open. Should I adjust needle in or out?

Rob Voska
Posts: 1649
Joined: Fri Jun 15, 2007 9:04 am

Re: Mikuni Carb Help

Post by Rob Voska » Wed Jun 10, 2009 11:11 pm

ALWAYS OUT FIRST. If it get worse then you know to go the other way.

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