|
General Discussions & Announcements General Announcements, General Questions, e.g. What bike do I buy?, etc. |
|
Thread Tools | Display Modes |
#11
|
||||
|
||||
I run my 200cc approx 100 hours per piston. That is with an old, slow guy in the dirt.
For an unrestricted 125cc on the road I would run less than 100 hours, but only experience can tell. Type of riding, type of oil, mixing ratio etc are all factors in the equation. My advice would be tonopen it up at, say 70 hours and inspect. For a restricted 125? Hard to tell. How resticted is it? 15 HP? Sent fra min YAL-L21 via Tapatalk
__________________
Anders "So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie) 2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper 2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper 1998 Bimota Supermono 1986 Duc Mille S2 1975 Guzzi sidecar hack 1961 Morini Corsaro 125 etc |
#12
|
|||
|
|||
Around 12hp restricted
|
#13
|
||||
|
||||
In that case I would expect a significantly longer piston life.
__________________
Anders "So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie) 2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper 2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper 1998 Bimota Supermono 1986 Duc Mille S2 1975 Guzzi sidecar hack 1961 Morini Corsaro 125 etc |
#14
|
||||
|
||||
The thing about restriction of a race cylinder, is unlike a low hp cylinder where the ports are small, a race cylinder you have the same piston running over the same large ports at the same revs (unless a different cdi) just with less force pushing it down as the inlet or exhaust has been flow reduced.
__________________
'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#15
|
|||
|
|||
1. So theres basically no point in restricting it?
2. When Im driving on road, should I be in high or low rpms? Some say low rpms means longer lifetime for the piston etc. Also lower fuel consumption. Some others say 2 strokes should be at high revs. Which one should i be at? Or in middle? |
#16
|
||||
|
||||
It's a 125, you won't have too much choice you have to cane it. Depends on your riding but you don't want it geared too low that you are needing to change into 7th when there isn't one as that would mean super high revs.
TBH I wouldn't want to go any faster than I'd trust skinny tyres and tiny brakes. Dirtbikes on the road are a wide compromise.
__________________
'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#17
|
|||
|
|||
Im having supermoto rims and tyres with better breaks.
Im thinking of having it geared so im riding around 6k rpm |
#18
|
|||
|
|||
Today, when installing crank bearing, obviously, it didnt go smooth. After some punching on the outer rim, it went in all the way. Now, when I first spun it, it was sometimes getting stuck or binding. The more I spun, the less it happend. I also installed the crank just to see if the same thing would happen. After that, it doesnt get stuck anymore. Should I replace it or is it good to go?
|
#19
|
|||
|
|||
it is always going to worry you. easier to replace now than when it is back together or breaks, and bearing are pretty cheap
__________________
2003 txt250 Pro 2013 Ossa 280i |
#20
|
|||
|
|||
The crank bearing is 70 fuc*** dollars. I really dont want to buy 1 more as I already broke one.
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
heat cycling | Doc Brown | Enduro Engine - 2 stroke | 43 | 09-18-2019 12:18 AM |
Heat Out Under Layer | Rick | Enduro Product Reviews | 0 | 07-12-2013 01:27 PM |
Heat to reshape plastic? | roostafish | General Discussions & Announcements | 3 | 02-09-2011 11:59 AM |
Top end break in, heat cycling | rpduc | Enduro Engine - 2 stroke | 9 | 05-04-2009 11:55 AM |
extreme heat? | crazjarhead | Enduro Engine - 2 stroke | 6 | 08-24-2006 08:03 AM |