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My Coleman 100cc trail mini bike arrived today. The mini bike is actually for my grandson who I will try to teach how to ride some time this summer (first time mini bike). I have not taken it out of the box yet. But plan on putting it together soon. I'll let you now how things went together. I...

Hi DIY has any one bought any of these coleman mini bikes. Ether the 100cc or the 200cc trail bikes. Walmart has the 100cc on sale for 300$. It sounds like a good deal any comments would be helpful. I also wonder the axle size ect... thanks.

Has anyone used the Compact (pipe) bender from Harbor freight tools. If so do you know if it can bend the pipe that that they make the Azusa mini bike frames out of. The info H.F. gives on the bender says that it will bend steel rod and steel flat bar. I don't know if it will bend pipe without...

What would be the best #35 chain for a basic mini bike? A chain that will not stretched or is already pre stretched. Also the #35 space chain, would that be a good chain that won't stretch? Thanks for any input or help. The cheep chains I get just don't last long you know the 2$ a foot chain...

In the near future I will need to order new wheels with (5/8") bearings. What I don't understand is what is the difference between standard 5/8 wheel bearings and the precision 5/8 wheel bearings? Can any one help to explain the differences or is this not an important issue when ordering the...

Can I weld on the frame (mini bike) with the engine (predator 212) still bolted to the frame? I don't know if this will hurt the electronics in any way. I'm wanting to line up and weld rear wheel assembly, axle tabs with chain on rear sprocket and motor. Thanks for any help.

has anyone every used or have a mini bike frame from Bar stool racers and also 909minbikes ? Both are the same Co. The frame I am talking about is the EL TIGER mini bike frame. If so any comments on this frame would be helpful thanks.

A friend gave me a mini quad 49cc 2 stroke for doing some plumbing work on his house. He said it does run. After looking it over a bit I pulled the cord. WOW It was really hard. I'll try to explain it, it was a HARD JOLT JOLT JOLT on my hand. After a few tries and a painful hand I gave up...

Hello what would be the best clutch under $70 for a predator 212. The motor has governor removed air gas jet and muffler upgrade. I would like a 12 tooth clutch for a 72 and or 60 tooth axle sprocket. Thanks for any help or advice. mike ---------- Post added at 05:48 AM ---------- Previous...

Pics of my first build.

Hello and thanks to all at DIY who helped me out. I finished my first mini bike build from welding the square tube frame to making the seat. Although I did use new Azusa forks. Took the bike out the other night for about the 6th test and adjustment run. I use the street in front of the house for...

Hi there does anyone know the inside distance (length) between the Azusa mini bike rails where the back axle tabs are located? Note not the axle tab distance but the distance between the inside rails where the axle tabs are located. thanks mike.

Hello I really enjoy all the information and the education that I learn from everyone here at DIY. Another question on my predator 212 basic upgrade ( governor out ready for new air intake exhaust gas jet ) something I read at another site (maybe I surf to much) was to remove Spark plug...

Hello I will upgrade my predator 212 hemi with air intake gas jet exhaust header, since I took the governor out. I don't under stand and I am not sure if I need the 8* timing key. Do I need to change to an 8* key if so can someone tell me. I don't know where it goes but if I have the wright...

Hi does anyone know the predator 212 stock emulsion tube size that is installed from the factory? I think the upgrade is 140 but I would like to know the original size thanks. mike

Hello I am getting ready to put my sprocket/hub wheel/tire assembly onto a 1 inch axle with 1/4x1/4 inch key. At this time I don't have any lock collars. Can I run the key in each assembly or should I run the key the whole length of the axle. Each wheel and sprocket hub have their own set...

hello guys I got a fork set from omb warehouse (has not arrived yet) does anyone know the exact inside dimension from the top plate to the bottom plate? thanks ---------- Post added at 06:35 AM ---------- Previous post was at 06:25 AM ---------- Hello again what I needed to know is the...

HI I read something on another site that said to ditch the gravity feed fuel system on HOV 4 cycle engines and to replace with a fuel pump (mikuni fuel pump) system. I have a predator 212 with governor removed (will upgrade air intake, muffler, gas jet). How true is this statement to upgrade...

Hello I have a predator 212 on a square tube frame build I am about 160 lbs. Can I use the rubber grommets to lesson the vibration. Or do I need to bolt the motor flat to the plate. I don't know if that is what the grommets are used for or not. Or do they keep the motor tighter to the plate and...

Hello guys while working on the frame of my mini bike build I have been try to come up with the fork rake. As I look at other bikes most seem to have about a 60 degree rake I hope I have this correct . I have a 6.5 hp. engine square 3/4 inch tubing frame and myself at about 160 lbs. Will a close...