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1  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb problems on: July 27, 2014, 10:36:25 AM
After getting the carb welch plugs sealed . I went out and tested it and it ran crappy again. Coughing and wanting to try and stall coming off throttle. My pump with line off pumped a nice stream of gas but I guess not enough.  My problem ended up being the fuel pump.Took the aluminum pump apart and the pulse diaphragm was sucked in on one side. I guess it was sucking gas to intake pulse , then showing plugs rich. Runs perfect now.
owen
2  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb problems on: July 25, 2014, 11:43:17 PM
Thanks for the info. Went to test the newer carb out, made it one lap and the right side welch plug fell out. Just my luck. Lol . Got a new one in. What sealent do you guys use over welch plugs ? Seal all?
Thanks
Owen
3  General / Coffee Shop / Re: Belt problem need help! on: July 24, 2014, 11:21:43 PM
Make sure you get a good belt. green or blue lawn tractor belt. Those rubber lawnmower belts get sticky . There's nothing worse then your belt falling off all the time , use belt guides. They stop you belt from falling off and help with belt disengagement.
owen
4  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb problems on: July 24, 2014, 11:04:43 PM
Thanks Jim and Lester for the info and explaining it. I put the back up carb and installed kit in it. Runs way better. I found the metal 2 screw bowl with black feed  tube in it. I got some gaskets coming for it and will swap my throttle to other side of engine next week. Has anyone made 2 adjustable jets for the mains on the 4 screw carb. I like the thought of being able to adjust highs and lows.
owen
5  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb problems on: July 23, 2014, 11:55:24 PM
Got a back up carb from my buddy,the competition. When i received my carb kit it shows two different main jets, then found one has a larger feed hole in it then the other main jet. Then found out i put it on the wrong side. lol Why is there two different size main jets?R and L, in the nikki carbs.35 and 38 cube vanny and intec carbs. The intake looks same length left to right. WHY?
owen
6  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb problems on: July 23, 2014, 09:20:55 AM
4 bolt .
7  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb problems on: July 22, 2014, 11:54:15 PM
Thanks for the reply big al . It's plastic and is not adjustable. Needle does not seem to be sticking at all and needle is only one piece not like the later style. Do these have problems with the rubber float bowl gasket cross leaking? There,s 2  welch plugs on top of carb for the lows? should i take them out,clean and replace or will they have anything to do with a rich issue? Thanks for any help hopfully this rebuild kit fixes it. lost a bunch of points last week in the twin class and racing this saturday.
8  Engine Help / Briggs OHV & Vanguard / Re: nikki two barrel carb on: July 22, 2014, 08:01:23 PM
Found the carb kit and ordered it. 90 bucks. get the rebuild kit tommorrow . My vanny is running rich and puffing out black randomly  .What inside carb could cause it to do this all of a sudden. Cleaned and cleaned it and all holes,jets  seem good. Any ideas of the problem ?
Owen.
9  Engine Help / Briggs OHV & Vanguard / nikki two barrel carb problems on: July 22, 2014, 12:02:55 AM
My carb has a aluminum bowl with all lows and high side jets in bowl. Adjustable low needles on top,straight up coming down. Two 12mm plugs in bowl over mains. I need a carb kit and can't find part numbers. It's of a 35 cube vanny i was told. Ive looked up tons of repair manuals online and can't seem to find the right one. Need a needle , bowl gasket and float. Worth a try runnung like    . Any help would be great.Thanks
owen
10  Engine Help / Briggs Flathead / Re: BRIGGS 8HP on: July 21, 2014, 11:38:48 PM
I would build a 8hp 19 cube over a 12hp 28 cube any day of the week. As long as its a non- scynco balanced 8hp. Thats what i run in our stock class and win almost every race. I'm not the best driver either. lol
11  Mower Building / Setup Help / Chassis / Re: New FXS Build Questions on: July 14, 2014, 08:14:53 PM
Guess I got to gain 50 pounds. Thanks for the reply.
Owen
12  Engine Help / Briggs OHV & Vanguard / Re: 30 cube vanny drip gas out of vent tube. on: July 12, 2014, 05:59:04 PM
I'll try turning the fuel shut off half way and see if it does it anymore. I ordered a new float and needle. Thanks Jim
Owen
13  Engine Help / Briggs OHV & Vanguard / 30 cube vanny drip gas out of vent tube. on: July 12, 2014, 11:46:43 AM
Has a double barrel Nikki carb on it. At an idle It's fine but I can see it start coming at around 4000-8000 rpm. Ran great Saturday and on Sunday started cutting out a bit around 4200 then rev up normal , then noticed a trail of gas when it was cutting out. Could this be a float and seat problem ? Plugs look rich on Sunday .
Thanks for any input
Owen
14  Mower Building / Setup Help / Chassis / Re: New FXS Build Questions on: July 12, 2014, 11:20:54 AM
Is the minimal weight on a fxt 500 lbs ? Or can it be any weight.
Owen
15  Engine Help / Briggs OHV & Vanguard / Re: building a 28ci ohv non avs on: July 06, 2014, 11:18:12 PM
You can use a 12 flathead crank with nut on top then put weights on. Arc sells a billet crank. Huffy44 / tommy Daniels on here or I'm sure many others can balance your complete assembly . Rod, crank, pistion , bolts, clips pulley needed.28 vs 31 has same size valves but has different port design and the 31 has a larger combustion camber. Hope this helps
Owen
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