My First MB Project

[pessen]

So, I am about to embark on my first MB project. I thought I would start this thread to show what I am working on, and so that as problems arise I have somewhere to ask questions where people can see what I have done so far.

I have a Diamondback mountain bike. I bought road tires for it but still have the mountain bike tires which I could switch back too if needed.



I am ordering (hopefully today) the 80cc(66cc) kit from bikeberry.com, I figured if I jack something up I would rather do it on a cheaper kit. Figure I'll upgrade once I know what I am doing more.

I plan to just put the kit on my bike, and once I have an idea of how that performs, the first upgrades I might consider would be a new carb (Maybe a Dellorto?), and an upgraded tuned pipe. I like the Shifter Kit from SBP as well, but want to make sure my bike is working fine first before I put the $200 down on that.

I live at 5200ft so I am not entirely sure how that will affect my engine or what problems might arise, guess I'll see once I get my engine running.

I'll post updates once I get my kit and get started on my build. In the meantime, any suggestions would be welcome.

Thanks!

pessen

 

[bluegoatwoods]

It's a nice bike. Ought to work well for this.

You might want to consider different handlebars; something that gets you more upright.
I suppose that's a matter of personal preferrence. but I think most MBers like to be more straight up.

I don't think your altitude will be a problem. There are a few high altitude riders here.
and I think they mostly say that they notice no difference.

Good luck and have fun.

 

[pessen]

Alright,

I got my engine a week ago or so, but was busy with school and work so didn't have time to start working on it. I have spring break this week so I am hoping to get my MB running finally!

As I unpacked my kit I noticed that the gas tank has some noticeable rust on the inside. I know people had mentioned using KREEM to seal the inside, but I looked at a Motorbike store and the KREEM was like $35 dollars. Is there an alternative solution that might not cost so much? Is there anything wrong with leaving the tank as is and just installing a fuel filter in my fuel line?

Just thought I would see what you all have found works best. Thanks!

Looking forward to riding my MB!

Pessen

 

[MotorBicycleRacing]

As I unpacked my kit I noticed that the gas tank has some noticeable rust on the inside. I know people had mentioned using KREEM to seal the inside, but I looked at a Motorbike store and the KREEM was like $35 dollars. Is there an alternative solution that might not cost so much? Is there anything wrong with leaving the tank as is and just installing a fuel filter in my fuel line?

Pessen

Call bikeberry and get them to send you a gas tank that doesn't have RUST in it
They say they offer warranty and RUST seems like a defect to me

Do all their tanks have rust?

I just got a tank that has a LOT of rust too and I am getting a replacement

 

[pessen]

Gas Tank Rust

Call bikeberry and get them to send you a gas tank that doesn't have RUST in it
They say they offer warranty and RUST seems like a defect to me

Do all their tanks have rust?

I just got a tank that has a LOT of rust too and I am getting a replacement

I emailed them and they said to simply rinse the tank out with gasoline, and that it should be good after that. I am not convinced that will completely eliminate the rust. Does anyone have experience with rusty tanks? Should I do as they say and use gasoline, or use KREEM to seal it, or should I insist that they send me a replacement tank?

 

[pessen]

Gas Tank Rust

I emailed them and they said to simply rinse the tank out with gasoline, and that it should be good after that. I am not convinced that will completely eliminate the rust. Does anyone have experience with rusty tanks? Should I do as they say and use gasoline, or use KREEM to seal it, or should I insist that they send me a replacement tank?

What do you all think?

 

[azbill]

if you are still worried...
put some small gravel in the tank, shake it pretty hard for a few minutes, empty rocks, rinse....repeat if neccessary
should be good to go

 

[pessen]

Exhaust Pipe Fitting Problem

I ran into another problem last night: I installed the stock exhaust pipe but it doesn't fit close enough to my bike, so my pedal is hitting it. I don't know if there is some way to bend or modify the pipe so that it will fit closer to my bike, and be out of the way of my pedals.

Here are a few pics of how it is currently fitting:






As you can see, if it fit closer to my frame it would be fine, but the angle on the engine mount makes it stick out. I guess I could cut the small tube on the exhaust, install it where I want, and then connect it with rubber hose/tubing.

I had been considering buying a better tuned pipe, should I just go ahead and go that route rather then trying to mess with the cheap stock pipe?

I live at a high altitude (5200 ft), what would be the best type of pipe to get? I don't really have much experience with them so I am trying to get some suggestions and hints. I would prefer something that isn't really loud (due to where I will be riding the bike I don't want to attract extra attention from the coppers).

So, any suggestions on how to make my stock pipe fit? Any suggestions for a better tuned pipe that is quiet and improves performance at high altitudes?

Thanks in advance!

pessen

 

[fetor56]

http://www.motoredbikes.com/showthread.php?t=8275

 

[pessen]

Frustration

I hadn't seen that thread before but sounds like it should work. Now I just need to find someone who has a blowtorch, and a vice, and get my bike over there to get the muffler adjusted correctly. I live in an apartment so I am pretty sure I don't have those items laying around.

I didn't realize how many mods and tweaks I would have to make.....not that I mind tweaking and whatnot but I want to ride my MB sometime this year!