Noob Predator Engine Question

[Bosch]

 

[OzFab]

No, that's the governor control linkage, the governor mechanism itself is inside the engine casing

 

[Bosch]

Ok, so someone give me a 2 minute dissertation on the governer. To my untrained eye, it appears to function as a simple mechanical rev limiter. True?

If so, can I defeat it by disconnecting that linkage? Obviously this would demand some throttle self control to avoid floating valves. And at the end of the day, I may leave it alone. But I do want to learn.

Thanks.

 

[jeeperjoel]

if you disable it get in the case and remove all of it, the gear is plastic and can damage your engine if it comes apart at new high rpm... sorry, the first question, rev limiter? yes

 

[Bosch]

So... "Leave it alone" is the better choice, unless I remove the internal parts, yes?

 

[jeeperjoel]

definitely

 

[DeathMachine]

Been playing with small engines for a while, from experience it's not a very good idea to disable the governor on most small engines.

 

[Bosch]

Point taken. Thanks for the replies.

 

[Greyscale]

Been playing with small engines for a while, from experience it's not a very good idea to disable the governor on most small engines.

There are a myriad of ways to do it safely, including "intelligent" use. Is is certainly a risky endeavor, but you shouldn't run into too many issues if you use the ungoverned engine responsibly.

 

[Xtreme Yard Karts]

Been playing with small engines for a while, from experience it's not a very good idea to disable the governor on most small engines.

Been playing with small engines for 25 years and haven't run a governor yet!

 

[landuse]

Ok, so someone give me a 2 minute dissertation on the governer.

HERE we go.....

Doc Sprocket gave a description on how it works in post #14

 

[Bosch]

Wow, that is a great sticky post. Thanks for putting it in this thread.

 

[landuse]

Wow, that is a great sticky post. Thanks for putting it in this thread.

For someone who has been around a while, you should have been looking at these stickies

 

[bshinn]

Here you go: http://www.affordablegokarts.com/govenor-removal.php

Rock on, if you leave the valve springs stock the valves will float before the flywheel comes apart, or the rod breaks. I have 2 kids wringing Pred's out for 2 years ungoverned with no issues.

If they can't kill them you should be OK!

 

[bshinn]

This one has 55-60 HARD hours on it with nothing but oil changes every 5 hrs or so. Runs like a Singer sewing machine.

 

[Bosch]

Ok, time to resurrect this thread for another question.
What kind of results does a stage 1 upgrade kit yield?
I'm talking about an aftermarket air filter, exhaust, .037 jet and 8 degree timing advance. is a 10% improvement a realistic expectation?

 

[OzFab]

Absolutely! I would expect a minimum 10% increase

 

[Poboy kartman]

Just going by what people say....a 2-3hp increase....so ...more like a 30-40% increase....if done right....

 

[Bosch]

Then that is probably 80 dollars well spent. I'm curious about the jet. Why don't they put the right jet in the carburetor to begin with? Just fyi, I'm at 1,300 ft, so nowhere near the 4,000 mentioned in the manual.

 

[firemanjim]

Then that is probably 80 dollars well spent. I'm curious about the jet. Why don't they put the right jet in the carburetor to begin with? Just fyi, I'm at 1,300 ft, so nowhere near the 4,000 mentioned in the manual.

Because they jet it to make the rated hp output at 3600rpm. And fuel economy/epa /smog/whatever else they can think of....