Budget GoKart
Aka a kenbar
Yay another big block for my yerfdog i sold my subarubaru 420 awhile ago and now my yerf has an 8hp briggs industrial that refuses to run so now i traded for a honda gx390 so i can put my briggs in my other yerfdog 
I received a big block honda...
- Thread starter Budget GoKart
- Start date
Karts of Kaos
the many mowers guy
nice I have 2 questions. 1. what is classified a a big block, 2. do you still want my wheels and tires from the 50 $ gokart?
Budget GoKart
Aka a kenbar
Its litterally a big block its so big it takes two people to carry. And i do but i only have cash
mckutzy
Well-known member
212, 196 ect clone, pred and honda are a small block...
Big block are the ones with the bigger case... like a honda gx240 and up...
Big block are the ones with the bigger case... like a honda gx240 and up...
JTSpeedDemon
2019 Build Off Winner!
I've always considered everything over 300 cc as a big block.
anickode
Active member
I can carry a GX690 or Onan B48m quite easily by myself... A GX390 is really not that heavy at all.
Karts of Kaos
the many mowers guy
it's called a dolly!
Kartorbust
Inmate #627
Big block has two definitions I believe in our hobby, mounting bolt pattern and pto being at least 1" diameter. Not all big blocks have the "big block" mounting pattern, but generally speaking they do. Regardless if it's one person or two person to lift is irrelevant to the size. That part has more to do with said individual(s) strength and/or how awkward the engine is. Some have weird balancing and suck to move.
I'd clean up that GX390 and get a Dingo to mess around with. Is it pull start only, or does have electric start?
I'd clean up that GX390 and get a Dingo to mess around with. Is it pull start only, or does have electric start?
If you just go by weight (less than or more than 20kg)
yes
GX200: 17kg
-------
GX240: 25kg
other go by mounting hole patterns (in order to know if they can mount it to the gear in need of an engine
) at least that's how I remembered it to be...
the small blocks (GX120, 160 and 200)
have a mounting pattern of 162x80 mm
the mid blocks (GX240 and 270)
have a mounting pattern of 195.5x96 mm
and the big blocks (GX340 and 390)
have a mounting pattern of 195.5x103 mm
well and the twins are a different size again...
but the pattern changed over time..
some gx240 are small blocks (and even by weight IIRC)
and I think there was a time where the gx200 were mid blocks..
will have to find the old datasheets to look it up
'sid
Budget GoKart
Aka a kenbar
Sadly only pull start i am gonna see if it is possible to make it el start because i have a bunch of mower starters if it has teeth on the flywheel. But im cleaning it up for my yerf dog 3202 so i can cram my 8hp industrial plus into my yerf dog 1203. I gave up on finding a dingo all indiana ones are destroyed beyond recognition. Or are rusty as crap and someone wants 300$ from it so ill stick with my cheap yerfs. Manco is overpriced in indiana.
Kartorbust
Inmate #627
Yes it is possible or at least should be. Some blocks usually have the starter hole still casted, but casted shut. You'll have to take a hole saw and cut out the hole. You'll at least need a new flywheel with a starter ring gear. As well as a stator/charge coil. So a compatible flywheel with stator magnets. Regulator/rectifier to switch from AC to DC and to regulate the voltage. Probably a few other parts I'm forgetting, but that's pretty much the bulk of what you'll need. Expect about $350 minimum for the conversion.