Anyone ever use this cylinder kit?
- Thread starter blasterd
- Start date
I would love to give this kit a try. I would port it and match it with a re-chambered head. Obviously I would also chamfer the ports after seeing the photos (that goes with the porting any way). I still say that there is nothing like OEM Japanese parts. Just my opinion. As for the Namura piston,... I say Its good to go, but then again I prefer CAST pistons. As long as the piston to cylinder clearance is correct, I believe it would run a long time. Right out of the box,... it,.... without question, needs port chamfering. I still need to "SEE" where the "cylinder broke off in my bottom end" pictures. I find that hard to believe.
I still have this kit, its been a year and still no problems about 500 - 700 miles on it so far!!
Thanks for the up-date blaster003. I figured that it was still running good. I would still like to see pictures from the other guy, where the cast iron cylinder liner "broke off" and fell into the engine. Yeah right.
Went on a ride today made a buzz springing sound in topend died wouldn't start I had to roll start and it has no power now and won't idle has 50 psi on the compression
If it's not to late, do a leakdown before you take it apart.
Did you insure proper port champher before assembly?
Did you insure proper port champher before assembly?
I just got this kit in today and, like many of you have already stated, the ports look terrible. I am going to chamfer them in the next week or two. Most of these kits do come with a one year warranty. That won't do you much good when you are stuck on the side of the trail and have to walk back.
I have bought one of these Chinese vostors cylinders for 92$ and it came with a cheesy piston, almost like a fake namurea. i have to say the porting is unfinished , i would not even attempt to run it with out champhering the ports . i see it is only worth it if you already have a dremal, a flex cable attachment, a carbide bit , some stones and patients. luckily my friend let me borrow his dremal in return for fixing his window motor in his bronco so i was in luck 
while i was at it i added some boysen ports, carved up the base side of the cylander ports to improve flow due to sloppy casting and enlarged and kinfe edged the intake bridged section.
while i was at it i added some boysen ports, carved up the base side of the cylander ports to improve flow due to sloppy casting and enlarged and kinfe edged the intake bridged section.
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so far i put 7 hours on the cylinder and i soft seized it due to crappy gas station brand 2stroke oil . the crappy oil also caused my pw80 and a friends KX250 to soft seize. on the contrary it was running mint since i got it
Describe a "soft seize"
Most piston seizes are caused by poor jetting, incorrect oil ratios and inadequate warm up time.
Poor quality oil is usually responsible for excessive wear but seldom will cause a seize.
Most piston seizes are caused by poor jetting, incorrect oil ratios and inadequate warm up time.
Poor quality oil is usually responsible for excessive wear but seldom will cause a seize.
This is exactly what I need to buy but I can't seem to find any. I want to rebuild the whole top end so I can avoid boring out. Can you point me in the direction of where I might find one of these kits?
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