vanguard governors

[john swenson]

hey friends, just wondering if the b and s vanguards ( 21 h.p. ) come with the governors factory set for best rpm and h.p. ? any reason to readjust, etc. it's a new motor. thanks, johnboy va.

[ARGOJIM]

Check the rpms, also check the spring looks like the old one as there are different rates.

[john swenson]

thanks jim, i don't have a rpm checker. not sure what you mean about different spring rates.... you mean stronger , etc. do guys ever just bypass the governor to direct throttle to carb ? can that hurt the motor ? thanks again , j.b.


9

[garretttpe]

Hi JB
I have my governor by passed on my 18. I am running a high rev kit and a tiny tach I normally try not to go above 4800 rpm but I have gone as high as 5500 for 10-20 seconds with no issues. Having the extra rpm is nice when I'm trying to go up a steep slippery hill

Larry

[msafi65]

My own vehicle has governor bypassed. If your main gov spring isn't painted brown get Briggs # 691507 spring and install it. I have a hard time getting most of the governors that come with eBay engines to pull over 3600 rpm. Factory used to set to 4000 with belt on and that takes a strong spring.

[john swenson]

thanks msafi65, that's what i needed to know. i will look again, but don't recall the main spring being brown. if not , i will order that spring part #. thanks for reply. so you can go direct to carb with throttle as long as you don't overrev ? i remember as a kid hooking up the throttles on minibikes and go karts direct to carb. thanks, j.b.

[john swenson]

so are you saying the brown # 691507 is a stronger spring that gives higher rpms ? thanks, j.b.

[Nubs]

the legend race cars run bandolero vanguards at 5,800 rpms race after race, all run stock rods etc

[msafi65]

As near as I know the # 691507 is the strongest gov spring. I bypass the governor by drilling a new hole in the be bell crank and leaving the throttle cable attached in the same place. I don't have the patern for modifying throttle rod on the two barrel carb. I believe it's different length than the 14-18 hp ones.

[john swenson]

o.k. thanks guys... i'll order it and carry on !!! j.b.