#10 DO IT YOURSELF HOW TO CUT A HIGH COMPRESSION SQUISH BAND HEAD FOR THE YAMAHA BLASTER!

[@Joeak74]

89 Frazier,... The re-chambered head gives you a noticeable power increase while giving you the ability to still run 91-93 octane pump fuel! No race gas, or 50/50 mix required. That's the icing on the cake. As with all engines, especially two stroke engines, PROPER JETTING is a must. Compression depends on what else you do to the engine. On this engine, I was running about 10:1 static compression ratio. Stock I believe is 6:1 As for what compression I'm seeing after doing this, meaning PSI on a gauge... 140-160 depending on altitude. Chamber size (in CC's) is also a factor. Be sure to keep your "squish clearance" in the .025-.050 range. I've found that .035 -.045 seems optimal.

[@jdm4569]

Do you have to run straight race fuel now or is a 50/50 mix ok? What compression are you seeing after this?

[@leomorillas]

Can it be done in stock engine?

[@euromarinetrading737]

How much material was removed in the end?

[@subscriberswithnovideos-fq5zz]

Can you do a video on how you Chuck the head in the lathe please and thank you

[@DarkLinkAD]

How big of a difference did this head make?

[@guidosamson682]

Very nice. Thats how i did it hears ago. It is not accurate. Why? Because you also need to work with the dome of the piston and deck height. But........ Its a good way to start for sure. Thumbs up!

[@Joeak74]

This is just one way to check total cc's. I'm just cc'ing the head in this antique video. Trying to keep it simple for everybody. Now I have a clear lexan plate with a hole in it, so I actually flip the head over with a spark plug installed. I level the head, istall the plate, and fill through the hole to get the total cc's. I've also assembled the head on the a complete and leveled engine after greasing around the top of the piston to get total volume of head and chamber at TDC. This is a two stroke, so I'm setting squish distance using soft solder through the spark plug hole. .035 -.050 thousands distance between the squish band and piston dome is optimal for pump fuel. Its very accurate actually. Its fun finding out what works well and what doesn't. I have way too many heads hanging on the wall now. Too many to know what to do with. Thank you for the thumbs up.

[@jdm4569]

Great video by the way

[@alvarogutierrez1826]

Hello joeak74 could you give me the measurements Thanks

[@his18v2000]

Where is no. 9 video

[@Joeak74]

Right here kzbin.info/www/bejne/pXO8kKeQZ6ZrbLs