skyhawk in frame tank racer build

Hi everyone, ive had this baby for about half a year now and finally decided to make a build thread for it. It was a tough job building a bicycle from scratch as it gives you many choices to pick from. As If the frame wasnt crazy enough, i went ahead and put mountain biking rated forks on the front with a disc brake, and had a hayday with fitting disc brakes on the rear, but i succeded with thousanths of an inch to spare. i shoved a racing 2 stroke motor in it with porting, high compression, a mikuni carb, and a racing exhaust. Ive invested some serious bread in this build because its my hobby and my toys bring me joy. I love to talk about my bike and could all day, as ive modified and replaced every part on the bike, even in the motor. Please ask questions, ill be posting pictures as i find them
 

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further engine mods

So in case youre wondering why im modifying the motor further, its because i had the bottom needle bearing on my balanced crank explode on me going 50.
it was not fun as it locked the motor and shredded pretty much everything but my main bearings, which is suprising since i use open bearings. Im in the process of putting a german needle bearing in the bottom of the crank, since i already have an italian upper needle bearing.
its a hard size to find anywhere, and you need a machinist for the crank. Im also going to be getting electrosil lining on the cylinder as its ported perfect and only has 1 gouge, the company said its salvageable. Its a little pricy but i plan on racing this coming year at so cal in california so its worth it.
 

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Its great to have a passion and these are much cheaper than drugs or golf. They allow our little boy within us to come out and play.

Wayne
 
That and between work, riding and maintaining the bike, theres no time because the mrs will give you an earful otherwise haha, i know mine does
 
Heck with all the money ive spent on this baby it is my drug, im addicted to riding 2 strokes now haha
 
Don't put off to tomorrow, what you can enjoy today for we live in the now. Tomorrow may never come for some of us, and yesterday is gone forever for all of us. We live between the eternities.
 
. Im also going to be getting electrosil lining on the cylinder as its ported perfect and only has 1 gouge, the company said its salvageable. Its a little pricy

but i plan on racing this coming year at so cal in california so its worth it.
That's some ugly damage to your motor.

How much does the electrosil lining cost?

Are you racing on Sat May 30th at Willow Springs? :)
 
Yea i ate a bearing cage.

Its pretty pricy the guy quoted me at 310 for just the cylinder

I doubt it, i cant get ahold of a new ported cylinder, and my balanced crank is being reworked atm, im having issues finding the correct bottom needle size
 
I doubt it, i cant get ahold of a new ported cylinder, and my balanced crank is being reworked atm, im having issues finding the correct bottom needle size
Throw a stock motor on to race in the Beginner class, which has lots of entries for very fun racing.

Where did you get your balanced crank from?

We may not be racing at Willow again for a while.
Where are you located?
I have 3 bottom needle bearings.
 
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