Help with my dr70 dirt bike

mars · 09-14-2015, 01:42 PM

i just bought a 70cc dirt runner but i need a new muffler and they dont make it anymore cant find anyone that has it, can i put a alternative muffler pipe on it then just buy muffler to attach it can anyone send me a link where to get it of does ebay have it thanks mario

Weldangrind · 09-14-2015, 02:08 PM

Welcome!

I just replied to your other post, but then you deleted it.

I recently installed a new muffler and header on a Baja Dirt Runner 50, and it was very simple. The cost of a new muffler is about the same as a complete system. Here's an example: http://www.ebay.com/itm/Muffler-Exha...171caa&vxp=mtr

The plastics are removed in the pic, so it's easy to see how it's mounted.

Name: Cam's Baja.jpg
Views: 396
Size: 98.6 KB

Name: Cam's Baja.jpg
Views: 396
Size: 98.6 KB

mars · 09-14-2015, 02:15 PM

i messages the same muffler on e bay and they said it wouldn't fit i see you have the 50cc will it fit the baja dr70cc

demidestructo · 09-15-2015, 07:52 AM

hey I just sold one of those weld and grind is right super easy. It will fit for sure changes the sound and gives it some more power.

Weldangrind · 09-15-2015, 11:20 AM

Quote:

Originally Posted by mars

Attachment 3367i messages the same muffler on e bay and they said it wouldn't fit i see you have the 50cc will it fit the baja dr70cc

Please show us a picture of your bike.

mars · 09-15-2015, 11:29 AM

will the muffler from e bay on my post fit dont want to order it until im sure

Weldangrind · 09-15-2015, 11:43 AM

It sure looks like it will. If you look at the pic of the yellow bike above, you can see where I installed the clamp over the muffler, and attached it to the rear subframe. that clamp can be located anywhere along the muffler, so you should be able to accomplish the same thing.

The new header will probably give you a little more ground clearance as well.

What's wrong with your existing muffler?

mars · 09-15-2015, 11:59 AM

I bought the bike used and the baffle is off of it way too load the pic of this bike is from internet new mine dosn't look as nice thats just a example so we can see how the muffler looks like

Weldangrind · 09-15-2015, 12:01 PM

The muffler that you posted from eBay will also be loud. If you want a quiet exhaust, look for a stock system from a Honda XR50 or a Honda CRF50. You'll need to fabricate a rear mount, but that's easy.

mars · 09-15-2015, 12:33 PM

Is there a whole muffler system for the dr70 dirt bike thats out there that wont cost a ton of money but be quieter to ride aound the nieghborhood thanks

demidestructo · 09-16-2015, 02:27 AM

I rode mine with that exhuast and my baja was MINT,the stock muffler was louder and mor annoying than the one on ebay your looking at .It will fit 100% for sure . I had the yellow one like weld showed you and I put the new one on in 10 min not even. It will work Im buying a xr70 and its the same ill be ordering one soon.

mars · 09-17-2015, 10:52 PM

just want to know is my bike the clone of the honda 70cc or CRF50 thanks

mars · 10-04-2015, 11:25 PM

Can any one answer me where to get the front rim with drum brakes for my sons dr70 these parts are so hard to find can anyone help its the 2.50 – 14 rim with the drum brake my son rides the bike very hard and the rim bent alittle it seems like the honda cr70 rim looks the same thanks

Weldangrind · 10-04-2015, 11:49 PM

Just buy another blank 2.50-14 rim from whatever source you choose (eBay, www.bikebandit.com, www.rockymountainatvmc.com, etc.), and have it laced to your existing hub and spokes. Ask a local motorcycle shop for prices. Make sure you buy an aluminum rim to minimize bending.

mars · 10-05-2015, 11:19 AM

Eventually i'm going to have to change the cluch. Were can i get the gaskets for the dr70 dirtrunner is the dr50cc and up to 125cc same size as well thanks for helping. (this gasket is on ebay is this the right one for my dr70 dirtrunner HONDA Z50 CRF50 XR50 CRF70 XR70 CT70 RIGHT CLUTCH COVER GASKET Z XR CRF CT 50 70) http://www.ebay.com/itm/171785090158...%3AMEBIDX%3AIT

09-14-2015, 01:42 PM	#1
mars Join Date: Sep 2015 Posts: 12	Help with my dr70 dirt bike i just bought a 70cc dirt runner but i need a new muffler and they dont make it anymore cant find anyone that has it, can i put a alternative muffler pipe on it then just buy muffler to attach it can anyone send me a link where to get it of does ebay have it thanks mario
	0

09-14-2015, 02:08 PM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Welcome! I just replied to your other post, but then you deleted it. I recently installed a new muffler and header on a Baja Dirt Runner 50, and it was very simple. The cost of a new muffler is about the same as a complete system. Here's an example: http://www.ebay.com/itm/Muffler-Exha...171caa&vxp=mtr The plastics are removed in the pic, so it's easy to see how it's mounted. __________________ 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

09-14-2015, 02:15 PM	#3
mars Join Date: Sep 2015 Posts: 12	i messages the same muffler on e bay and they said it wouldn't fit i see you have the 50cc will it fit the baja dr70cc Last edited by mars; 09-14-2015 at 02:26 PM. Reason: adding pic
	0

09-15-2015, 07:52 AM	#4
demidestructo Join Date: Aug 2015 Location: Michigan Posts: 199	hey I just sold one of those weld and grind is right super easy. It will fit for sure changes the sound and gives it some more power. __________________ Autos: 1997 ford ranger 1968 GTO (all original survivor) motorcycle: lifan dual sport "crankenstein" Born of parts from all over the globe,laying rubber in a town near you!
	0

09-15-2015, 11:43 AM	#7
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	It sure looks like it will. If you look at the pic of the yellow bike above, you can see where I installed the clamp over the muffler, and attached it to the rear subframe. that clamp can be located anywhere along the muffler, so you should be able to accomplish the same thing. The new header will probably give you a little more ground clearance as well. What's wrong with your existing muffler? __________________ 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

09-15-2015, 11:59 AM	#8
mars Join Date: Sep 2015 Posts: 12	I bought the bike used and the baffle is off of it way too load the pic of this bike is from internet new mine dosn't look as nice thats just a example so we can see how the muffler looks like
	0

09-15-2015, 12:01 PM	#9
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	The muffler that you posted from eBay will also be loud. If you want a quiet exhaust, look for a stock system from a Honda XR50 or a Honda CRF50. You'll need to fabricate a rear mount, but that's easy. __________________ 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

09-15-2015, 12:33 PM	#10
mars Join Date: Sep 2015 Posts: 12	Is there a whole muffler system for the dr70 dirt bike thats out there that wont cost a ton of money but be quieter to ride aound the nieghborhood thanks
	0

09-16-2015, 02:27 AM	#11
demidestructo Join Date: Aug 2015 Location: Michigan Posts: 199	I rode mine with that exhuast and my baja was MINT,the stock muffler was louder and mor annoying than the one on ebay your looking at .It will fit 100% for sure . I had the yellow one like weld showed you and I put the new one on in 10 min not even. It will work Im buying a xr70 and its the same ill be ordering one soon. __________________ Autos: 1997 ford ranger 1968 GTO (all original survivor) motorcycle: lifan dual sport "crankenstein" Born of parts from all over the globe,laying rubber in a town near you!
	0

09-17-2015, 10:52 PM	#12
mars Join Date: Sep 2015 Posts: 12	just want to know is my bike the clone of the honda 70cc or CRF50 thanks
	0

10-04-2015, 11:25 PM	#13
mars Join Date: Sep 2015 Posts: 12	thanks every one for the advice on muffler it fits great Can any one answer me where to get the front rim with drum brakes for my sons dr70 these parts are so hard to find can anyone help its the 2.50 – 14 rim with the drum brake my son rides the bike very hard and the rim bent alittle it seems like the honda cr70 rim looks the same thanks
	0

10-04-2015, 11:49 PM	#14
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Just buy another blank 2.50-14 rim from whatever source you choose (eBay, www.bikebandit.com, www.rockymountainatvmc.com, etc.), and have it laced to your existing hub and spokes. Ask a local motorcycle shop for prices. Make sure you buy an aluminum rim to minimize bending. __________________ 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