That screw you drilled the cap off is the air/fuel mixture, it's good for correcting a motor that surges at idle and cleaning up throttle response. The idle jet is housed in this little black thing you can pry up and out (circled).
Creepycrawler Established Member
500+ Posts
500+ Posts
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 37 Join date : 2013-07-02 Points : 5019 Posts : 731 Location : Logan Ohio
Agreed, air/fuel mixture screws are only effective on the low speed circuit hence why I said what I said (good for correcting surging and cleaning up throttle response)
I know some of you have been wondering what I was going to do for the exhaust. Also I’m really excited to take this on a ride tomorrow, although I’m still waiting on my aftermarket air cleaner so I probably won’t run the hood so I can run the stock air box.
MightyRaze, Nevadablue and MN mudder like this post
Crazy_Carl Veteran Member
2018 Build-Off Entrant
2018 Build-Off Entrant
2500+ Posts
2500+ Posts!
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 35 Join date : 2017-10-30 Points : 5333 Posts : 2561 Location : Rochester, New York
I took the Raider 12 out today for its first actual trail ride. Did pretty well other than I need to re-jet it ,fine tune the clutch, and the belt jumped off the lower idler once just like it did on Ol' Red. Anyway I rode with my new tractor friend John who brought his B-80.
MightyRaze, Brianator and MN mudder like this post
Brianator Moderator
1000+ Posts
1000+ Posts!
2022 Build-Off Top 3 Winner
2022 Build-Off Top 3 Winner
2023 Build-Off Entrant
2023 Build-Off Entrant
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 45 Join date : 2019-07-02 Points : 4548 Posts : 2385 Location : Ontario, Canada
Probably smart especially if you put a mikuni in it. How big was the low-oil sensor? I've seen images of some that were pretty small and some almost the size of a juice box.
PROJECTS: Marshal ........................93 Craftsman GT6000 Red Bandit ...................72 Wheel Horse Raider 12 Dirty Rat........................77 Sears Suburban Bowser...........................01 Murray Widebody LT The Green Machine ....1990 Craftsman II GT18 Other projects
I kinda wish i was more into wheel horses just never fell in love with em. Im more of a craftsman guy considering i have 5 that work and my murray is still not going lol
Crazy_Carl Veteran Member
2018 Build-Off Entrant
2018 Build-Off Entrant
2500+ Posts
2500+ Posts!
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 35 Join date : 2017-10-30 Points : 5333 Posts : 2561 Location : Rochester, New York
Not very productive in a mud mower application. Lots of up and down hills if you have seen some of the trails he can ride. If on one of those hills or high acceleration, you could pull the oil from the sensor, and it would cut the motor off. Sometimes this would be a safety issue. If I would keep it, instead of grounding out the magneto, I would have it turn on a light only.
PROJECTS: Marshal ........................93 Craftsman GT6000 Red Bandit ...................72 Wheel Horse Raider 12 Dirty Rat........................77 Sears Suburban Bowser...........................01 Murray Widebody LT The Green Machine ....1990 Craftsman II GT18 Other projects
I drilled holes in my pulleys to help shed water and keep the belts cool. I also built this lower belt guide to help with shifting on the fly. If you look closely in one of the pictures with the clutch pushed in you can see how the belt rests on the guide which helps the belt make a slack loop around the trans pulley.
MightyRaze, Brianator and MN mudder like this post
Brianator Moderator
1000+ Posts
1000+ Posts!
2022 Build-Off Top 3 Winner
2022 Build-Off Top 3 Winner
2023 Build-Off Entrant
2023 Build-Off Entrant
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 45 Join date : 2019-07-02 Points : 4548 Posts : 2385 Location : Ontario, Canada
Well I can finally drive my Rusty copy with the hood on thanks to my new air cleaner. Worth mentioning not a single notch was made in the hood. Deleting the governor and reassembling the engine was a success. I like the way the clutch performs now with the new rear guide on. If I push in the clutch most of the way the belt stops moving but if I push it in all the way it applies the brake. I opened up the main jet on the carburetor slightly with a number 56 drill. However now I regret opening up the idle jet a little bit because I should have left that stock. I can’t really tune the idle right now but throttle response is awesome. The case cover gasket for a GX 340 or 390 fits this particular Duromax 440 perfectly.
MightyRaze and Brianator like this post
Crazy_Carl Veteran Member
2018 Build-Off Entrant
2018 Build-Off Entrant
2500+ Posts
2500+ Posts!
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 35 Join date : 2017-10-30 Points : 5333 Posts : 2561 Location : Rochester, New York
I made some basic tree kickers to try out on an upcoming ride in February. I’m interested to see how they will help me turn around a tree. One small drawback is that I had to re-work my gas pedal location but I stiffened up the belt guard that it’s mounted to while I was at it.
Crazy_Carl Veteran Member
2018 Build-Off Entrant
2018 Build-Off Entrant
2500+ Posts
2500+ Posts!
2024 Build-Off Entrant
2024 Build-Off Entrant
Age : 35 Join date : 2017-10-30 Points : 5333 Posts : 2561 Location : Rochester, New York
I got my front axle stabilization done today and drilled the main jet out again to .052 and the engine really liked it. I also tried a green gates belt from Napa and the clutch did not like it. I pretty much lost the clutch. I switched back to a tractor supply belt and the clutch was a lot more usable so I’m going to stick with those .
Brianator likes this post
mr.modified Veteran Member
2015 Build-Off Top 3 Winner
2015 Build-Off Top 3 Winner
2016 Build-Off Top 3 Winner
2016 Build-Off Top 3 Winner
2018 Build-Off Finalist
2018 Build-Off Finalist
2022 Build-Off Entrant
2022 Build-Off Entrant
2500+ Posts
2500+ Posts!
1st Place Build-Off 2014
1st Place Build-Off Winner 2014
2023 Build-Off Entrant
2023 Build-Off Entrant
Age : 34 Join date : 2013-11-02 Points : 7169 Posts : 2910 Location : New Jersey USA