How To Skim A 2 Stroke Cylinder Head Using Household Tools

[TheNoisePolluter]

Looks like a Yamaha Blaster head.

[denzlepob]

@TheNoisePolluter The IT175 shares many engine parts with the Blaster. Cheers. Have a good day.

[jmrico1979]

If I may, I would add this method is only apropriate for single cylinder heads. Too risky for multi cylinder or hi-performance engines. But if the engine is a standard performance single... like the engine from a scooter for example, this method works just fine.

[denzlepob]

@jmrico1979 I agree, Thank you

[ksera2k7]

great idea chears

[skaaltel]

Looks like a nice gentle way to do it. Any plans for repairing the nicks/gouges in the combustion chamber?

[denzlepob]

@skaaltel It was an experiment so I used a scrap head. Thanks for taking the time to leave your comment! What bikes do you have? I reckon a lot of slack can be taken up by the head gasket? Cheers.

[skaaltel]

@denzlepob No bikes, muscle car, 650 triple snowmobile, lots of small engines. You could very easily make up for the shaved head with a thicker head gasket.. on a car. You don't really have a range to order for most small engines. Honestly I don't imagine you've decreased the combustion chamber volume significantly enough to warrant the effort. CCing the chamber would tell the full story. :)

[PURELOVECREW]

EXCELLENT IDEA

[giffy5775]

That heads needs to be trimmed on a lathe.

[denzlepob]

@giffy5775 No they donts

[giffy5775]

@denzlepob A unique approach to be sure, rather messy and slow compared to just using a sheet of fine sandpaper taped to the glass imho. If you don't have a lathe, you could knock the high metal off of the gouges with a small half round file or a small square of sandpaper. You're right it will run without doing this but if you have a tight head clearance it could damage the new piston. Cheers.

[Devondan1]

This is easier than using wet and dry sandpaper and works better in my opinion, also-

Why is using a power tool lazy?

Why do you let kids work on your bike?

Sandpaper is one word

and what's a" verticle living room"?

[DIOSpeedDemon]

THAT IS FUCKING BRILLIANT MATE! DONT LET THESE MICKEY MOUSE COMMENTATORS GET YOU DOWN. I AM GOING TO MAKE A SIMILAR VIDEO AND PUT IT ON MY CHANNEL. THIS IS THE BEST VIDEO I HAVE SEEN IN A YEAR. CHEERS. RH DSD

[denzlepob]

@DIOSpeedDemon Cheers DioSpeed, I found thos last comments from that idiot rather amusing, he called me American! Even funnier!

[sublunacy]

Stupid DRILL

[sublunacy]

If your going to inform kids how to do it then you should set an example and do it without fucking it up ignorantly. 2 words sand paper! try reading for for a change too, even if its google.

[denzlepob]

@sublunacy 1 Word, sandpaper.

[sublunacy]

HORRIBLE!! bad bad bad. Just lay wet sandpaper on glass/ verticle living room or spare, whatever. Forget the drill lazey stupid american

[denzlepob]

@sublunacy I'm not American.

[tonewall1]

i take a small block chevy and tape a plate glass window to the fan blade then......i actually use a 12" square of tempered glass ,use a little valve grinding compound and wd40.. work by hand in a circular motion ....works perfect even on heads where the plug is on an angle. Works on centercases also.

[rickburnout666]

Done the same thing with a 1979 DT100 head using a pillar drill and Wet n Dry then a mirror and autosol, the DT had a little more compression and run excellent after

[KWAKMAN500KXriders]

Pretty cool.I'm rebuilding/tuning the fook out of an 86 KX500. Keep em coming.

[denzlepob]

@KWAKMAN500KXriders Thanks buddy, good luck with the KX

[jbsleddin]

Just finished an 81 YZ 465, now starting an 83 yz 125. The 465 was a

complete restoration, the 125 is just a bike I am building from scratch for

my brother in law, not going all out on this one, just a beater, lol.

[denzlepob]

@jbsleddin there's a good Australian forum for Yam YZ IT DT etc over at yamahait.com.au tell 'em Denzlepob sent you! Good for spares for the 465 also manuals and sales literature. Cheers Denzle.

[jbsleddin]

Never thought of it that way, I"ve used the glass plate with sandpaper taped to it, and sand in figure 8 pattern. Would think that eventually the rubbing compound would wear the glass as well, causing an untrue working surface?

[denzlepob]

@jbsleddin Good point, I suppose if you taped some sandpaper to a sheet of glass that would be very effective, thanks for you comment, what bike are you working on?

[headpotong]

wasted

[outdoorsman310]

can you use valve lapping compound?

[denzlepob]

@outdoorsman310 Thanks for your question Outdoorsman. Of course, any abrasive should work OK as long as the surface is flat, use different grades of emery paper in a figure of eight as an alternative.

[MalliganTheUFO]

A decent bike indeed!