Changing Piston on Almost new Engine, do I need to Hone???

[NAGER]

Hi guys, just got myself a hi comp piston for my 150 Daytona. The engine hasn’t seen much use, maybe 7 or 8 hr max of light use. This is my first time changing a piston and I’m just wondering if I need to get the cylinder honed before the new piston goes in?

 

[DvDRip]

yea you have to hone it or the new rings won't seat in and the whole upgrade would be useless....

 

[grnman]

i go 20hrs when i change the piston and that is when it been raced in motard. so harsh hours.

make sure you are running your daytona ignition on stage 1 as the high comp give the engine 14:1 compression and 25 degrees advance timing is all id go with a hi-comp at 14:1.

 

[sean01]

hmm 14:1 is too high for pump fuel...
id def be retarding the hell out of it and adding an extra base gasket..

and NAGER are you referring about a true daytona 150 or the copy lifan/yx..

 

[NAGER]

Yes, True Daytona 150...

 

[grnman]

thats what i though sean, im using race fuel. but all those pocket bike guys run 14-15:1 on 98 BP Ulitmate.

14:1 on a 150cc with 98 octane fuel is border line.

 

[crf50 2008]

the daytona 150s that dhz sell are they a true daytona or a copy ?

 

[sean01]

the ones for $1080 on special are genuine

 

[crf50 2008]

thought so .... cheers

 

[wogtaz ryder]

Anyway to find out if there the "newer" version trex?? seems weird there like $200 cheaper then any U.S retailer..

 

[grnman]

yeah there is. the old ones have 3.18 first gear and the new ones have 2.62 first gear