What Do you think of the Dirtmax Yx 150CC Version II

[roost666]

roost i work for bsc but you new that i thought

Na never new that, so that would mean you are involved with inenco ?

 

[samual]

man just go to no1importer he will look after u, no probs at all cheers

 

[tommy_xiang]

but there ****

the valves are tiny and the ports arn't big enough to fit my little finger through

harrods haven't flow tested it yet but my expectations are low to say the least

and yx have made a fix for the case but they run a needle roller brg that isn't a standard size either so they've f'ed up again

but they do what they do

roost i work for bsc but you new that i thought

Do you know which type of Standard size could be used on the YX160cc engine ?

 

[headsmess]

YX engine had already improved the crancase and bearing , and also make the countershafter much stronger than old type .
The lates information from Dirtmax in China is that they have already finished the 4 vavles engine head and cylinder to upgrade the performane and power for the YX engine

cough, cough, ahem....^^^but theyve improved the bearing^^^...so why do you need a standard sized one? or are you referring to the 150?

i still dont see whats wrong with using phosphor bronze/white/babbit metal bearings, that are able to be made to any size needed... by anyone with a lathe and a reamer...

but i dont own a 150 or a 160,(dont really want to, either) so...im just asking....

why would the guys that drag harleys use bronze bushes in the conrods/cranks if roller bearings/ball bearings were better? at least bushes dont fail too easily? and fill the engine up with little bits of hardened steel? just putting it out there...i already know the answer myself

 

[themountain]

Do you know which type of Standard size could be used on the YX160cc engine ?

The yx comes with a cut down 6202....they call it 6202x30...its cut down 1mm to 34mm. So, to fit the standard 6202(35mm diameter), you have to open the case up 1mm. Also....the standard 6202 is 1mm thicker than the yx6202x30, so you have to use a 1.5mm washer in between the gear and bearing !...or you sleeve a 6002 (32mm)bearing 1mm!