Help finding base gaskets.

[Trek 700c 100cc]

I have a A100 engine, it has a 49mm piston.

I found the cylinder with the gasket that matches engine stud spacing. But I need only base gaskets.

Stud spacing is 43mm.

There is lots of 80cc base gaskets and they are 45mm stud spacing.

And yd100 is different spacing.

 

[Trek 700c 100cc]

This matches my motor.

 

[Trek 700c 100cc]

To better explain it, this will fit my engine. It's 49mm piston jug. 66/80cc with 43mm stud spacing.

They is lots base gaskets for 66/80cc cylinder but they are 45mm stud spacing and won't fit.

 

[GW's Motorized]

Just get some gasket material and a ball peen hammer. Makeing gaskets isn't as hard as you might think.

 

[DieselTech]

That should take a normal 66/80cc base gaskets. Get the green gaskets if you can find them.

 

[DieselTech]

This is from a place I do not like, but I've always got my stuff I've ordered. This is a pretty good deal @$12 for a complete gasket set, with crank seals.

 

[mark20]

Boom Diggity, My gaskets will fit your bike just fine.

Made in USA, higher quality materials for a very similar price.

For Sale - Custom motorized bike gaskets, MADE IN USA!

Well, after a few years of motorized bike experience and building countless kits, I've always had a problem with the crappy gaskets they come with, they would always either rip on me whenever I needed to remove the cylinder or intake or they were soo thin that it wouldn't seal properly even when...

motoredbikes.com

 

[Trek 700c 100cc]

Thank you for response. I'll check out Mark20 gaskets later.

Thanx for all suggestions.

 

[radiatedmocha27]

I have a A100 engine, it has a 49mm piston.

Thank you for response. I'll check out Mark20 gaskets later.

Thanx for all suggestions.

I found the cylinder with the gasket that matches engine stud spacing. But I need only base gaskets.

Stud spacing is 43mm.

There is lots of 80cc base gaskets and they are 45mm stud spacing.

And yd100 is different spacing.

Use a soda can, if you have the clearance for it. For the most part you can use a standard top gasket for your displacement, they are mostly universal, I port match my gaskets with a Dremel tool to maximize air flow, then clean the cylinder and oil the combustion chamber when your done getting the dust out, there should be ZERO color on a paper towel before you oil it for reassembly.

 

[radiatedmocha27]

Use a soda can, if you have the clearance for it. For the most part you can use a standard top gasket for your displacement, they are mostly universal, I port match my gaskets with a Dremel tool to maximize air flow, then clean the cylinder and oil the combustion chamber when your done getting the dust out, there should be ZERO color on a paper towel before you oil it for reassembly.

Secondarily if you need clearance you can also use two lower base gaskets as well