Forum - Briggs & Stratton Racing
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billw

Registered: 04/11/12
Posts: 12
Reply with quote  #1 

I have a brand new LO206. Briggs doesn't have an owners/ operation manual for racing engines so I need help to determine where the 3 outlets go from the fuel pump. The middle one has a P on it , the others nothing. 

BriggsRacing1

Registered: 06/22/11
Posts: 188
Reply with quote  #2 

Bill, First off thank you for purchasing one of our racing engines and welcome to the family!

 

A racing dealer is the best source to help you plumb your fuel pump but I will try to walk you through it right now.  The pump has one outlet with a 'P' on it and then the two other fittings you will notice a directional arrow.  These arrows are the direction that the pump will move the fuel. 

 

The arrow pointing INTO the pump is where you will run your line from your fuel tank to.  The arrow leading OUT of the pump is where you run your line from to the carburetor inlet.  The 'P' or pulse line requires an aftermarket fitting that replaces the top oil fill on the engine side cover.  This allows you to run your line from this fitting to the pulse inlet.  What is happening is as the crankcase pressure changes it forces the diaphragm in the pump to pump your fuel from your tank to the carburetor.

 

I went out to APSkarting, one of our dealers to show you what the side cover pulse fitting looks like - http://host0114.csmhosting.com/IW_Products.m4p.pvx?;MULTI_ITEM_SUBMIT.

This part is available through any of our racing dealers.

 

Make sure you run approved fuel line, use proper clamps to hold your lines in place, and follow all sanctioning body guidelines that are in place.

 

If you need any additional advice or clarification please feel free to ask or use our dealer locator to find a local resource.

 

BriggsRacing1

Registered: 06/22/11
Posts: 188
Reply with quote  #3 

Bill, I also want to highlight that their is a supplimental 206 guide located in the 'News' section on our homepage.  There are some really good tips and advice to help you have the best experience possible.

billw

Registered: 04/11/12
Posts: 12
Reply with quote  #4 

thanks: the fuel pump pulse fitting kit # AP4151 @ $9.95 is the correct one from APS karting??

billw

Registered: 04/11/12
Posts: 12
Reply with quote  #5 

billw

Registered: 04/11/12
Posts: 12
Reply with quote  #6 

The red start button, is it always in the on position and to stop the engine do you push it in???

BriggsRacing1

Registered: 06/22/11
Posts: 188
Reply with quote  #7 
AP4151 is the pulse fitting kit you need. 

The red button is a momentary switch.  To turn the engine off you hold the button down until the engine full quits.  Rocker type switches are not used due to the potential for accidental shutoff.
billw

Registered: 04/11/12
Posts: 12
Reply with quote  #8 

billw

Registered: 04/11/12
Posts: 12
Reply with quote  #9 

Thanks Briggs Racing1 for all your help. I watched Briggs video on installing a clutch and it showed the clutch being installed with the chain gear facing the engine rather than the gear facing out which is how I had it. Is this proper? 

BriggsRacing1

Registered: 06/22/11
Posts: 188
Reply with quote  #10 

Bill, It can be ran in either orientation but I running it inboard will give you more seat clearance and prevent any overloading on the crankshaft should your chain go tight and you don't catch it right away.  The key point in that video is to make sure the clutch is locked tight on the crankshaft.  Allowing the clutch to have play will lead to keyway damage. 

billw

Registered: 04/11/12
Posts: 12
Reply with quote  #11 

billw

Registered: 04/11/12
Posts: 12
Reply with quote  #12 

I have a new hilliard extreme clutch that I want to install on my 206. The briggs video shows a spacer that maybe required to protect the crank but this clutch doesn't come with one . Do I need one? Thanks

BriggsRacing1

Registered: 06/22/11
Posts: 188
Reply with quote  #13 
Bill,

I am not versed on the Hilliard clutch.  The key to the video is to make sure the clutch is completely locked to the shoulder of the output shaft.  Many manufacturers, and I would maybe contact Hilliard about this, offer a washer that has a machined radius that matches the one on our crankshaft.  This allows the clutch to lock tight against the shoulder of the output shaft WITHOUT the posibility of damaging the radius. 

I will ask a representative from Hilliard if they would either make a follow-up post or to contact you offline to answer your specific question.
billw

Registered: 04/11/12
Posts: 12
Reply with quote  #14 

Briggs Racing 1: Hilliard do not make a washer. I guess Briggs does't have a universal one??? The rubber vent hose supplied with my engine: do you just stick it in the hole of the valve cover or does it hook into anything??? Thanks Bill 

BriggsRacing1

Registered: 06/22/11
Posts: 188
Reply with quote  #15 
Bill, The rubber hose can be used to help plumb your valve cover catch can vent.  The hose simply slides in the valve cover hole and a sanctioning body approved, secured line can run to your catch can that is vented to the atmosphere.  This will prevent any pressurizing of the crankcase.

Someone from Hilliard will follow-up with you to answer your clutch questions.
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