OutdoorKing Repair Forum Forums Thread Like Summary - Picked up a Masport 400 with a Quantum choke start

Hi all,

I picked up a Masport 400, a light grey mower, chrome handles, black grip, alloy base from a deceased estate sale. The old fellow must have really looked after it. It has what looks like a Quantum 35/40 or thereabouts (stickers missing off the engine, only thing missing), and I couldn't work out how to start it at first, as there was no primer bulb. Anyway, after some research, I found it had a choke system, where you put the throttle lever all the way towards you, wait a few seconds, then pull the cord. It came to life, then I moved it into run. Engine is in excellent condition, as is the base, with virtually no bit of rust anywhere, no wheel play, and has definitely been kept away from the elements it's whole life.

Anyone know how many of these choke type briggs were sold? Are they fairly reliable? I haven't run across any before I picked this one up, and am tempted to keep it as a personal use unit since it has only had the one, obviously caring, owner.

Very similar to this unit:



Also, anyone think a Masport 18" mulch plug might fit this?

Hi Sapper,

I've had a lot with the choke and never had a problem with them ,they are more reliable than the primer system.

I've never tried the Masport 18" mulch plug in a Masport 400 but you could check part numbers on both plugs to see if they
are the same.

Cheers
Max.

Hi Sapper, give me one with a choke any day of the week

Norm, in a recent thread, you mentioned that you have converted some Briggs with these primers to a choke system because.you were having problems with the filter housing not sealing properly against the carburettor, rendering the primer inoperable. AVB mentioned they warp and Tyler had resorted to using two gaskets to get them to work.
In other words Sapper, you're on a winner. These Briggs Quantum primer systems can be a problem child.

Depends if its a 2 or 4 blade. I have had one of each. If its the 2 blade bar, it takes ga spares bnc5345 and if its a 4blade disc it takes 2 pairs bnc3237.