Ports, Carburetor, Exhaust Questions.

[Flash1987]

This is supposed to be a high hole kit that I got

This is the one I purchased https://www.amazon.com/dp/B0BJJXTDS...AF76MU9T&psc=1&ref_=list_c_wl_lv_cv_lig_dp_it

 

[robe]

I've been trying to figure this out for a while . Of course they don't give measurements from pin center to crown. How do you tell what is what?

I don't need one but I like to know.

Amazon ca has a good collection.

Amazon.ca : CDHPOWER 66CC/80CC New Iron Sleeve Cylinder Set 49MM with Gasket Kit and High Hole Piston - 2 Stroke Gas Motorized Bicycle

 

[Flash1987]

I'm not sure and I know they use to give the overall height but not lately that I have seen. I use to take the overall height and subtract pin to bottom but can't do that lately

 

[Chainlube]

I'm not sure and I know they use to give the overall height but not lately that I have seen. I use to take the overall height and subtract pin to bottom but can't do that lately

I don't remember the exact measurement off hand, but I thing a high hole piston is 31mm from the base to the top of the hole and a low hole is 25mm. That looks like what you got going on there.

 

[robe]

Thanks. I don't know why they would be measured that way. To me it makes more sense to measure from pin center to crown.
That way a measurement from con rod center to top of cylinder would tell you what you need to know.

 

[Chainlube]

Thanks. I don't know why they would be measured that way. To me it makes more sense to measure from pin center to crown.
That way a measurement from con rod center to top of cylinder would tell you what you need to know.

Obviously some clown had the two pistons side by each on a bench and said "Hey that one has a higher hole", and stood a tape on the bench.

What's the old saying, "Path of least resistance".

 

[GW's Motorized]

Does the piston cover part of the intake port?

 

[Flash1987]

Ok I will definitely pull it apart and measure it but does cdh eve make a low hole 49mm piston because I couldn't find any or any mention of one?

 

[Flash1987]

Does the piston cover part of the intake port?

I'm not fully understanding the question in regards to covering the intake do you mean at top dead or ?

 

[GW's Motorized]

I'm not fully understanding the question in regards to covering the intake do you mean at top dead or ?

Bottom