yerf dog project

migue1760 · 02-23-2013, 03:13 AM

Hey guys i have a yerf dog and i need to mount the engine but i dont know if the centrifugal clutch would move a 350 pound buggy around 25-30 miles

migue1760 · 02-23-2013, 03:19 AM

It doesnt have the origional engine it has a 7.5 hp briggs

Weldangrind · 02-23-2013, 04:52 PM

Please post some pics.

migue1760 · 02-23-2013, 08:29 PM

Here it is

migue1760 · 02-23-2013, 08:32 PM

What do you guys think?

Weldangrind · 02-24-2013, 06:52 PM

I think it's really cool! With a centrifugal clutch, you basically have two gearing options: either 72/12 or 60/11. What size is your clutch sprocket?

The 72/12 ratio will take off a little faster, but the 60/11 will have a little faster top speed.

migue1760 · 02-24-2013, 07:57 PM

I believe the size sprocket is a 10number tooth comet clutch and the main sproket is like 55 or 60 not sure, so do you think its good having that clutch instead of the regular band clutch

Weldangrind · 02-24-2013, 08:06 PM

I don't know what you mean by band clutch. The clutch that you have is the most common style for mini bikes and karts. Stick with the gearing you have for now.

migue1760 · 02-24-2013, 08:30 PM

Im sorry lol the torque converters, i will, are these type of clutches durable?

Weldangrind · 02-25-2013, 01:00 AM

They're durable enough, and cheap enough to replace when they fail. Torq-a-Verters (by Comet) are excellent, but costly.

migue1760 · 02-25-2013, 01:46 AM

Okay, im going to use it in pretty rough terrain thats why

katoranger · 02-25-2013, 08:57 AM

The springs inside can be adjusted so that the clutch will engage at different RPMs. I would stick with what you have and see how it goes. The briggs engine should be enough power.

The comet belt setups are very costly. You can buy 10 of the centrifugal units for the cost of a comet.

FastDoc · 02-25-2013, 12:21 PM

That looks like a ton of fun if you have the places to use it.

migue1760 · 02-25-2013, 05:51 PM

http://www.geog.ucsb.edu/~joel/g148_...anyon5_web.jpg

Im going to ride it almost on this terrain but with rocks

FastDoc · 02-25-2013, 05:59 PM

Doc is very jealous.

Where in California is that?

02-23-2013, 03:13 AM	#1
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	yerf dog project Hey guys i have a yerf dog and i need to mount the engine but i dont know if the centrifugal clutch would move a 350 pound buggy around 25-30 miles
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02-23-2013, 04:52 PM	#3
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Please post some pics. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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02-24-2013, 06:52 PM	#6
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I think it's really cool! With a centrifugal clutch, you basically have two gearing options: either 72/12 or 60/11. What size is your clutch sprocket? The 72/12 ratio will take off a little faster, but the 60/11 will have a little faster top speed. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

02-24-2013, 08:06 PM	#8
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I don't know what you mean by band clutch. The clutch that you have is the most common style for mini bikes and karts. Stick with the gearing you have for now. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

02-25-2013, 01:00 AM	#10
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	They're durable enough, and cheap enough to replace when they fail. Torq-a-Verters (by Comet) are excellent, but costly. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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02-23-2013, 03:19 AM	#2
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	It doesnt have the origional engine it has a 7.5 hp briggs
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02-23-2013, 08:29 PM	#4
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Here it is
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02-23-2013, 08:32 PM	#5
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	What do you guys think?
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02-24-2013, 07:57 PM	#7
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	I believe the size sprocket is a 10number tooth comet clutch and the main sproket is like 55 or 60 not sure, so do you think its good having that clutch instead of the regular band clutch
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02-24-2013, 08:30 PM	#9
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Im sorry lol the torque converters, i will, are these type of clutches durable?
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02-25-2013, 01:46 AM	#11
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Okay, im going to use it in pretty rough terrain thats why
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02-25-2013, 08:57 AM	#12
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	The springs inside can be adjusted so that the clutch will engage at different RPMs. I would stick with what you have and see how it goes. The briggs engine should be enough power. The comet belt setups are very costly. You can buy 10 of the centrifugal units for the cost of a comet. __________________ You meet the nicest people on a Honda Clone.
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02-25-2013, 12:21 PM	#13
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	That looks like a ton of fun if you have the places to use it. __________________ Happy to serve.
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02-25-2013, 05:51 PM	#14
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	http://www.geog.ucsb.edu/~joel/g148_...anyon5_web.jpg Im going to ride it almost on this terrain but with rocks
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02-25-2013, 05:59 PM	#15
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	Doc is very jealous. Where in California is that? __________________ Happy to serve.
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