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What engine?

2K views 24 replies 8 participants last post by  doopsx3  
#1 ·
I'm thinking about getting .one of the new yx 160 engines. Anyone know anything about them? Should I just get the old 160 and put a case upgrade kit in it? Or should I just get a Zongshen 155?
 
#2 ·
#5 ·
the yx160 is a good motor. my brother has one and upgraded the case. i could have sworn the cases have since been beefed up. it was primarily due to the kick starting shaft breaking the case i believe. he starts his up like its a cr or kx500 (spin it once or twice and start it from TDC. never any kickback or unneadded stress) and has never had a problem either way.
 
#8 ·
We use z155, yx etc for big bore projects to date the biggest is a z155 turned into a monster 239cc!!
 
#10 ·
TRT said:
well I bought tgrs bike and I'm gonna be putting it through the ringer....I know it was built good so..... I went with the z155


They have done a great job on that bike! Let us know what you think when you get it!
 
#13 ·
firepower354 said:
Upping the ante by 18cc, with a YX160, as we speak;)

Honda rod, good r/s ratio, "The clutch"...lol


Cool, ok then I am going to put a 450f in one!! lol
 
#16 ·
doopsx3 said:
I am gonna put a Husky WR390 engine in my Tech Five frame and twist it so the jug is horizontal.....shorten the wheel base by 4 inches....that way I can race against peewee 50's and hope not to get smoked... aircooled horizontal engine open frame screamer


Ricky, you'll be sucking roost from the rear of my 500AE-powered one, and I'll even be a class down with the semi-auto tranny:p If my left knee holds up for kicking that sumbich...
 
#17 ·
firepower354 said:
Ricky, you'll be sucking roost from the rear of my 500AE-powered one, and I'll even be a class down with the semi-auto tranny:p If my left knee holds up for kicking that sumbich...
Have you ever been behind a Husky 390 2smoker being the recipient of the wall of rock and tire chunks that thing can throw at ya when that smoking ring ding gets on the pipe????? MADNESS SHEER MADNESS
 
#18 ·
doopsx3 said:
Have you ever been behind a Husky 390 2smoker being the recipient of the wall of rock and tire chunks that thing can throw at ya when that smoking ring ding gets on the pipe????? MADNESS SHEER MADNESS


Sure, if you're in to Welterweights;). But, I had an 83 CR500 Husky, and the AE used the same 44mm Mikuni and Maico-killer top end. Pro-Circuit was building THE pipe for the big Husky's.