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  1. Overkill

    Yamaha blaster oil sight glass problems

    https://www.amazon.com/dp/B000NPPATS/?tag=jyj356j5-20 I had the same issue with one of my engines. This tool works great. If you rounded the bolt too much you can slot the head of the bolt with a slitter wheel and use the flat screwdriver attachment. But that is LAST RESORT!!! -Ok
  2. Overkill

    Need some advice on a head design

    Well I reassembled my top end and was able to break it in and jet it and Wow it has a lot more spunk. Problem is that the next day we got snow and it went from 40°f to -1° so I haven't been out much. Hopefully once it warms up I'll be able to get out. I'd also like to thank all that has helped...
  3. Overkill

    Need some advice on a head design

    I may try swapping heads. I'm curious to know what work did what. The chamber volume is 23cc. Starting with the intake I have an open air box, k&n filter, stock carb, premix 32:1, boyesen reeds, wiesco 66.75 piston, rechambered head, ported for lower end power, fmf fatty, stock silencer...
  4. Overkill

    Need some advice on a head design

    Sorry it's been awhile, but I finally got to run my head. I'm currently having a local race shop port my engine. I told them what kind of riding I do and they knew exactly what I was wanting. The price was right and I was able to get a good deal on parts for when I reassemble my top end. By...
  5. Overkill

    Need some advice on a head design

    I had it bored by a local shop.
  6. Overkill

    Need some advice on a head design

    This is my current setup, 2000 blaster: 66.75 Wiseco, fmf fatty with stock silencer, k&n intake, boyesen reeds, open air box. I when I acquired it had a blown piston, all the parts I'm running now (except the piston), and some "custom welding" done to it. It also had a main jet of 360 and a...
  7. Overkill

    Need some advice on a head design

    Thank you Joeak47, The reason the first design was close to stock was because I was trying to follow a design I found on here. It was missing a couple dimensions so I was shooting in the dark. What's your opinion of my new design? It measures 22.434 cc. As for porting would Ken's DIY Blaster...
  8. Overkill

    Introduction

    Thank you
  9. Overkill

    Need some advice on a head design

    I've been reading around the forum about redesigning the combustion chamber of a blaster head. Since I'm a machinist I'd like to attempt it myself. I drafted up a design and was wondering if it would work for my style of riding and still be able to stick with pump fuel? I typically ride wooded...
  10. Overkill

    Introduction

    Hi all, Guess I'm the new guy on the block so I'll introduce myself. I live in the Midwest. I'm currently a college student in going for my degree in machining. I currently own a 2000 blaster that I've been riding for about a year now.