Honda Spree and Elite 50 Forums

On Spree, about .042"-.045". Assume other engines are same. This allows owner to leave out the .020" head gasket and not kill the engine. great, thanks !! when you mentioned that, i started to wonder so i checked it....it had like 0,080" !!! it had 60psi compression too, i guess...

do you have any idea what is the "stock" squish clearance ? i searched all over the reference manuals and i dont see it anywhere, i know its an open chamber design thus they dont have realy a squish band, but there must be a given nominal clearance somehwere ?

it is for a scaled jeep for my son.
it is de-geared already 2:1 to get more torque and less speed, its a toy after all i dont want him to get killed !

thanks for the link !

fwiw i did put it all back together and fired it up. its a complete different thing for now. Now its obvious i need to fabricate a proper tune pipe for that. i bought graham bell book for 2 stroke tuning, very nice book, explains very well how to make a proper tune pipe, altough i have a software to...

fwiw, i edited my list of foes.... I did exactly what i said, i made the necessary gasket under the cylinder to bring the ports to get proper opening duration, and milled the top down+ 0,010 to bump up the CR a litle. I CC'd it all and its at about 8:1 for now, which is just fine imho. Note that thi...

Which motor do you have af16 or af18? The main problem I see if it is an older af16 or even early af18....the kit you ordered its for a 12mm wrist pin which is a different crank than the af16 and early af18 if I am not mistaken. I know the af16 has a 10mm wrist pin NOT 12mm which the kit you bought...

Hi Could you post a link to which kit it was on Ebay? I have had a look at the Dio options and there a very mixed bag on Ebay. One even looks like it is quoting the outer bore diameter as the inner bore which is not correct. I am not as knowlegable as a lot of the people on here but by looking in t...

every time i ask a question on this forum i get bashed on. :*: i dont know what i am doing wrong. for the takers, piston pin to deck is exactly the same so piston do not sit further down. this kit is sold as a "direct replacement for dio motors, AF18E", so i dont see why in the * i would ...

every time i ask a question on this forum i get bashed on. :*: i dont know what i am doing wrong. for the takers, piston pin to deck is exactly the same so piston do not sit further down. this kit is sold as a "direct replacement for dio motors, AF18E", so i dont see why in the * i would n...

Sounds like someone has no clue how to break in a new cylinder kit. +1 ok, ok. :? but that does not fix the port timing issue. they are all 0,060" down from the stock dio cylinder. edit- they are more like 80 thou down ! i would need to put like 7 gasket under the cylinder to bring that to sam...

Bear45-70 wrote:Sounds like someone has no clue how to break in a new cylinder kit.

thats probably it. thanks.

I bought the 49cc kit cylinder kit on e-bay to fix my DIO motor, since its meant for a toy for my son, i didnt bothered much. The thing is pure crap. after 1 week of usage, cylinder is out of round, rings are burned here and there, and comparision with the oem honda cylinder, the inlet ports are too...

Hi, project goes very well. It all runs and i want to make it run better. i want to improve part throtle response. I bought the TTO 14mm meter. I have a stock AF18E with #75 jet (factory), but longer exhaust pipe and open foam filter. What temp should i look for that i would assume "normal"...

Hi, so i bought on a heartbeat a software to build tune pipes, just to see if i could fit one on my son's project jeep.

Anyone knows the port timings of a AF18 E ?
i searched a litle but didnt found anything yet.

thanks.

thanks for the reply. i am well aware of the tune pipe designs and how they works, there is just not enough space up front to fit such pipe so i decided to leave it alone. how does that temp stuff work, you run WOT and then check the temp ? the thing is, if i want to do that i will need to go drive ...