See "Mows Ready for Test N Tune . . . . . . . . " for most recent modifications, supersedes the info below. ALSO see, Orange, LMRacer Build #2. Since THIS YouTube has been made, Mows has been lowered, seat has been lowered, and the Transaxle has also been race prepped and locked, see my other YouTube entries on lowering and tranny prep. This is a slide show of pics of a racing lawn mower build start to finish, basic Central Washington State style AKA Grass Roots style. I also disconnected the crankcase breather from the throat of the carb and ran it out the back of the frame with 1/2" tubing, I also plugged the hole in the throat of the carb with an expandable rubber plug, cuts down on interference of air flow in the throat of the carb as well. There no longer is a puke tank, an engine in much better condition has since been installed. I have just finished installing a Briggs 12.5hp 286707 series flat head, put an exhaust valve spring, retainer and keepers on the intake valve (have to modfy the valve stem), an adjustable main jet needle in the Walbro LMT 37 carb, opened up the air cleaner housing, opened up the exhaust, all so the engine could breath better, adjusted the valve clearance to the max spec for that engine, run the best 10W-40 synthetic oil I can get. All this since the Spring '09 race (posted on my channel under Doublewide Super Speedway) where I had a bad, split, rubber sparkplug cap that kept shorting out on acceleration on the 11hp I had in it at the time ...
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25 responses so far ↓
1 mowerspeedracer // Jul 26, 2010 at 4:46 am
Iseki Farm Tractors
@jdar3888 Thanks for the suggestion. Because Mows now has a jack shaft the 6 on the jackshaft to 6 on the tranny is now 6 on the jackshaft to 4 on the tranny I may have actually geared it to high. It does have 13×6.5×6 on the front now, big difference. Hope to do a test and tune soon. Be sure to check out my most recent video “Mows Ready for Test N Tune . . . . . . . . ” Mows is completely changed to what you see here, an evolution of sorts.
2 jdar3888 // Jul 26, 2010 at 8:37 pm
Tractor Parts
move your tensioner behind your brake rod and u can use a bigger front pulley. i only say that because more traction on your belt is always better. also carlisle makes 13×6.5×6 tires to get lower in the front.
3 mowerspeedracer // Jul 28, 2010 at 1:52 am
Ford Used Tractors
Check out my recent “Mows ready for Test N Tune” or Mows Up Grade
4 mowerspeedracer // Jul 30, 2010 at 6:45 pm
Mitsubishi Tractors
@omaxx12 I am not familiar with the 15 OHV, anyway take out the link between the throttle and the governor, hook directly to the throttle, and yes you may blow it up, fresh high quality oil will make it last a little longer. Don’t rev it when it isnt in gear, sure as heck you will blow it.
5 omaxx12 // Jul 31, 2010 at 9:36 am
Kubota Used Tractors
@mowerspeedracer i have a brigs 15hp OHV and i was wondering wat i need to do to it so i can bypass the govenor without blowing it up
6 mowerspeedracer // Aug 3, 2010 at 2:37 am
Case IH Tractors
@davidsoozuki Mows is now WAY beyond this point. See my “Mows was Pathetic”, since that race Mows is getting a TOTAL revamp again, read the comments.
7 davidsoozuki // Aug 5, 2010 at 6:14 pm
Kubota Used Tractors
Just the Video I was looking for! John Deere Tractor Manuals for F R E E – *** tractorrepairmanual (dot) org***
8 mowerspeedracer // Aug 7, 2010 at 10:53 am
Ford Used Tractors
There generally is a snap ring, sometimes have to dig for it, take it off. Then soak with PJ Blaster for a few days, keep applying and good luck.
9 99MLSMediaGroup // Aug 9, 2010 at 7:57 pm
Farm Tractors
@mowerspeedracer Now how do i go about pulling the rear pulley off? I tried and couldnt figure it out It’s all rusty.
10 mowerspeedracer // Aug 11, 2010 at 3:13 am
Tractor Parts
Just a guess, but I’m thinking 5 on the engine 4 on the tranny. 4 and 4 might even work well.
11 99MLSMediaGroup // Aug 13, 2010 at 11:50 pm
Massey Ferguson Used Tractors
@mowerspeedracer i Live ona dead end road so i want a little bit of speed but we also have 7 acres to play around on which is hilly , i’ll be keeping the rear end in it with the four speed and reverse. I’d like to be able to go through the woods and up hills with no problems but as i said, open it up open the flat ground.
12 mowerspeedracer // Aug 14, 2010 at 1:41 pm
Ford Used Tractors
Is this going to be for mudding or racing? Be sure to view my very recent YouTube upload titled “Mows was Pathetic”.
13 99MLSMediaGroup // Aug 16, 2010 at 10:12 am
Farm Tractors
i have the same mower but with no engine. I have the chance for a 20HP vertical shaft , horizontal pulley. What size pulleys should i run on the rear and front?
14 mowerspeedracer // Aug 18, 2010 at 11:02 am
Yanmar Farm Tractors
Not sure. just have to get a hold of one of each, see how many times you have to turn the input shaft for the wheel axle to go round once
15 CAMOTRUCKN // Aug 21, 2010 at 9:43 am
Mitsubishi Tractors
hey, do you know if a 3 speed transaxle is just as fast as a 5 speed? is the largest gear the same size it both? Only the 5 speed just has more gears between or what?
16 mowerspeedracer // Aug 22, 2010 at 5:19 am
Ford Used Tractors
@tracklessgreen
Since we run a fairly tight road course and want to stay on the power curve it is geared to top out about 30 mph. See my vid of Orange on the track, Mows was running badly at the time, but gives you an idea of what our course looks like.
17 tracklessgreen // Aug 24, 2010 at 8:29 pm
Ford Used Tractors
how fast dose it go
18 yamaha340ET // Aug 28, 2010 at 2:31 am
Case IH Tractors
o ok cause now im thinking about doing something like this on my friends racer for him cause he hates his wheel…Thanks alot!
19 mowerspeedracer // Aug 29, 2010 at 7:18 pm
Massey Ferguson Used Tractors
Nothing is original about the steering column, it is 7/8″ cold rolled steel, sleeves and large washers I got at a farm implement dealer. The bicycle handle bars have been welded to a portion of a bicycle fork tube, then bolted to the steering column with two grade 8 1/4″ bolts with nylock nuts. The mower has been converted to direct steering for racing purposes. Review the video clip, maybe pause it and check out the steering more closely.
20 yamaha340ET // Aug 31, 2010 at 3:24 am
Massey Ferguson Used Tractors
hey man just kind of wondering how you went about putting those handlebars on it….are they just bike handlebars welded onto the original shaft?
21 mowerspeedracer // Sep 2, 2010 at 12:38 am
Ford Tractor Manuals
That hood latch proved to be real stupid, and failed. If you watch my “Lawn Mower (Tractor) Racer Stand winter racing Grass Roots” just recently posted you will see a rubber strap hooked cross the top of the hood.
22 ryanhare92 // Sep 5, 2010 at 7:47 am
Ford Used Tractors
Where did you get your hood latch from? Does it have a technical name?
23 mowerspeedracer // Sep 6, 2010 at 10:14 pm
Farm Tractors
Mows has gone through many changes since this YouTube was made. On the upper right click on the blue (more info) to read an updated full explanation. Just recently the original tranny was replaced with a race prepped 6 speed.
24 NuDawgontheblock // Sep 9, 2010 at 2:55 pm
Tractor Parts
Nice job on the looks. I really like the handle bar ideal and the over all color looks really cool. Thanks for taking the time to show it of.
Bryan
25 mowerspeedracer // Sep 12, 2010 at 11:25 am
Kubota Used Tractors
I don’t recall. It is Production Music I purchased from Music 2 Hues, part of their Rock Guitar collection. Go to their web site and you can listen to samples. It is expensive cause it is also royalty free once purchased, designed for the entertainment industry.
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