Ivan Opalka

loves mx and fruit



I'm doing 21 things
 

How I did it
How to make my Honda xr400 street legal
It took me
1 month
It made me
happy


How to own a dirt bike
It took me
7 days
It made me
happy


Recent entries
Make 43 Things Faster (read all 4 entries…)
43T in virtual cloud.

We moved 43T to virtual cloud on Monday morning. Besides problems with bounce emails all seems to be humming well. Our average time to generate a page improved and errors decreased.



make my Honda xr400 street legal (read all 3 entries…)
Nice app... For sure

Did you take a part in making the app?? It ROCKS! I had no idea you got a parking ticket for your motorcycle… That’s new. How come you never update your other goals?
Love ya, Zora



install big bore kit on my honda xr400
Why?

I have 2001 Honda xr400. Predominantly my riding consists of single trails in the North West of Washington state. What I am trying to accomplish is to give the engine second life, without sacrificing its reliability and spending too much $$.

Considering that this is an air cooled bike with 9.3:1 compression ratio I did not want to choose a kit that would increase the compression to the levels where I had to start using race gas. The same goes for a clutch. If you increase the power too much the clutch will start to go faster as well. Keep it simple.

I am going to bore the cylinder from 85 mm to 87 mm which will increase displacement from 397 cmm to 416 cmm and install piston with 10:1 compression ratio. The kit goes for about $150.00 plus $80.00 for boring and honing of a cylinder.



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