Yes. So would a set of calipers be better than feeler gauges?Red Eft Performance wrote:First off Evilone how are you getting your measurement? Are you measuring the same way madman is in the pic above?
50mm taiwan bore info
Moderator: Moderator
Re: 50mm taiwan bore info
2001 Honda Elite
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
Re: 50mm taiwan bore info
bakaracer, what clearance do i want at the piston skirt then? Just go half the .20mm to .23mm range (that would make it close to the .004" ?bakaracer wrote:you want more like .20mm or.23mm range.
Just want to get it correct instead of killing the bore.
2001 Honda Elite
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
Re: 50mm taiwan bore info
the .20mm is for the top clearance. the skirt you want .05-.06mm. if you use the .04, is yours really tight or can the piston slide still?evilone wrote:bakaracer, what clearance do i want at the piston skirt then? Just go half the .20mm to .23mm range (that would make it close to the .004" ?bakaracer wrote:you want more like .20mm or.23mm range.
Just want to get it correct instead of killing the bore.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
50mm taiwan bore info
Evilone, what do the port timings look like on your 50 mm bore? Cause it seems they are a little low on mine!
SYM dd
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
Re: 50mm taiwan bore info
.002" / .051mm = piston slides on its ownbakaracer wrote:the .20mm is for the top clearance. the skirt you want .05-.06mm. if you use the .04, is yours really tight or can the piston slide still?
.0025" / .063mm = piston very easy to slide but does not slide on its own
.003" / .076mm = snug (feels the best to me)
.004" / .102mm = piston snug (more than i like) and takes force to move it. Feeler gauge pulls out with a little force
.005" / .127mm =very snug
.006" / .152mm = almost impossible to insert gauge
.007" / .176mm = i'm gonna start damaging things if i keep tryin!
Need some more honing for sure!
Thanks bakaracer.
Last edited by evilone on Fri May 18, 2012 1:58 pm, edited 1 time in total.
2001 Honda Elite
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
Re: 50mm taiwan bore info
Not ignoring you...i'll have to check later.Madman wrote:Evilone, what do the port timings look like on your 50 mm bore? Cause it seems they are a little low on mine!
2001 Honda Elite
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
50mm taiwan bore info
evilone wrote:Not ignoring you...i'll have to check later.Madman wrote:Evilone, what do the port timings look like on your 50 mm bore? Cause it seems they are a little low on mine!
Did you get a chance to check it out?
Have a new 50mm kit arriving tommorow so will have more information on another brand kit form Taida Taiwan, I'm getting ready for round 2 ding ding!
SYM dd
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
- Red Eft Performance
- Elite
- Posts: 449
- Joined: Sat Jun 11, 2011 10:40 am
- Location: maine
Re: 50mm taiwan bore info
Best would be a micrometer and a bore gauge.evilone wrote:Yes. So would a set of calipers be better than feeler gauges?Red Eft Performance wrote:First off Evilone how are you getting your measurement? Are you measuring the same way madman is in the pic above?
Red Eft Performance
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Re: 50mm taiwan bore info
all my stroker blocks are from taiwan..
i use sheng e and sgc..fortunately the rebore work was done correctly...
seizure can be the side effect of a bad rebore works...
i use sheng e and sgc..fortunately the rebore work was done correctly...
seizure can be the side effect of a bad rebore works...
PINOY SCOOTERISTA!!!
Re: 50mm taiwan bore info
Sorry, way too busy working on a boat. Do you want a port map or just some pics? I should be able to get to it tomorrow...i had to order parts for the boat.Madman wrote:evilone wrote:Not ignoring you...i'll have to check later.Madman wrote:Evilone, what do the port timings look like on your 50 mm bore? Cause it seems they are a little low on mine!
Did you get a chance to check it out?
Have a new 50mm kit arriving tommorow so will have more information on another brand kit form Taida Taiwan, I'm getting ready for round 2 ding ding!
2001 Honda Elite
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
1995 Yamaha Jog
1994 Yamaha Axis
I can't believe
that cop put me
in the backseat
when I clearly
called shotgun.
- Red Eft Performance
- Elite
- Posts: 449
- Joined: Sat Jun 11, 2011 10:40 am
- Location: maine
Re: 50mm taiwan bore info
Really need deck height as well to go with these maps to figure out timing.
Red Eft Performance
To benefit forum members REP will beat the price of any legit/active Business/website
Elite, Dio, Aero, AF16/AF05 Cylinder kits,Clutches,Variators,Belts,CDI boxes,Reeds,Clutch bells,Pipes
Malossi,Polini,Fabrizi,Anything!
View products click => Here
To benefit forum members REP will beat the price of any legit/active Business/website
Elite, Dio, Aero, AF16/AF05 Cylinder kits,Clutches,Variators,Belts,CDI boxes,Reeds,Clutch bells,Pipes
Malossi,Polini,Fabrizi,Anything!
View products click => Here
50mm taiwan bore info
Ok I got my new 50mm kit and had a look on the block, it appears that on the downward stroke it does not fully clear the ports by about 2mm. Is this as Baka said before that these kits Are meant for mini stroke kits which have a longer stroke downwards? What would be the effect of running like this with the ports not fully cleared?
Thanks.
Thanks.
SYM dd
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
Re: 50mm taiwan bore info
You need to make a spacer plate or use multiple base gaskets. Check compression after of course as it may be low and may need to mill the head or bore.
Last edited by LMH on Fri May 25, 2012 1:29 am, edited 1 time in total.
Re: 50mm taiwan bore info
how much does the piston sit below the deck at tdc?Madman wrote:Ok I got my new 50mm kit and had a look on the block, it appears that on the downward stroke it does not fully clear the ports by about 2mm. Is this as Baka said before that these kits Are meant for mini stroke kits which have a longer stroke downwards? What would be the effect of running like this with the ports not fully cleared?
Thanks.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
50mm taiwan bore info
bakaracer wrote:how much does the piston sit below the deck at tdc?Madman wrote:Ok I got my new 50mm kit and had a look on the block, it appears that on the downward stroke it does not fully clear the ports by about 2mm. Is this as Baka said before that these kits Are meant for mini stroke kits which have a longer stroke downwards? What would be the effect of running like this with the ports not fully cleared?
Thanks.
It's about .5mm I guess!
SYM dd
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake
50mm 82cc KABOOOOOMMM
Strengthend crank
V8 typhoon
Malossi clutch springs yellow
Datona +20% center spring
kitako type x variator
Oko28mm
CT intake