chain length question

[raptormessiah]

hello i have a yerf dog 3208 but it is almost identical to 3203. i would like to know what size chain i need. i got the factory t/c setup but my old chain broke at the lock and i lost it. my local lawmmower shop sells chain by the foot and the locks. how much do i need. oh and i don't know what sprockets i have all i know is that they are stock yerf dog 3208 thanks

 

[t0x1k]

Well, i believe it's a 60t sprocket which is like 10" diameter. So 10x3.14 is like 30 something...plus the 10t sprocket is only a few inches away. So get 4 feet and call it a day.

 

[anderkart]

Measure the sprockets width and the spacing/pitch between the teeth:

(quote)
Number 35 Chain: Pitch = 3/8" | Roller diameter = 3/16" | Roller width = 3/16" | Pin diameter = 1/8" | Tensile = 2,100

Number 41 Chain: Pitch = 1/2" | Roller diameter = 5/16" | Roller width = 1/4" | Pin diameter = 1/8" | Tensile = 2,000

Number 40 Chain: Pitch = 1/2" | Roller diameter = 5/16" | Roller width = 5/16" | Pin diameter = 5/32" | Tensile = 3,700

Then loosen your motor mount and slide your engine fully back to mesure the distance around both sprockets. Your corect length might (or might not) end up being a link or 2 longer/shorter than this measurement. (this may take some experimenting to find a length that fits but leaves you with plenty of room for future adjustment as the chain stretches and the sprockets wear.

If you want to be sure of just one trip to the store, buy enough for a couple chains plus a chain breaker tool (for your chain size) so you could always build your own chains to the perfect length yourself anytime you need to.

 

[toofarnorth]

If it's like my yerf dog it has a #40 sprocket on the jackshaft and a #41 on the axle so you would need #40 chain. A lot of guys here run #40 chain on #41 sprockets because it's stronger.

 

[raptormessiah]

chain length

thanks for info so you said 40# chain what length or how many links do i need. they sell the chain at my local lawnmower shop by the foot. i need to know what length so that i can buy

 

[anderkart]

Heres a link to the Yerf Dog 3208 manual: http://www.yerf-dog.com/manuals/3208_A.pdf
It says: CHAIN, DRIVE, #40, 70 LINKS

 

[TOO FAST]

Anderkart - you're amazing

 

[anderkart]

Why thank yee

 

[raptormessiah]

thanks a bunch anderkart

man i really appreciate the help i was just going to buy a 10' length of chain at tractor supply co. ur a genius. it helps to have such intelligent and dedicated people will call upon you in the future god bless and have a nice day or night