DT125R Build
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@SpookDog
This is an 1989 bike from Sweden, registered as a 3MB with 3MB in the chassi-number, but the engine says:
If I keep the cylinder I will get a 3MB piston yes.
@Calum Ya sure? The picture shows 2 of them, but the text says 18X1,5Mm, and it's def bigger than that. With the set I had either a 26mm or 27mm would fit, though they where not deep enuff to let me screw them into the flywheel without also screwing it onto the crankshaft.
@TBthegr81 All the bottom ends say 3BN-XXX
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@SpookDog
This is an 1989 bike from Sweden, registered as a 3MB with 3MB in the chassi-number, but the engine says:
If I keep the cylinder I will get a 3MB piston yes.
@Calum Ya sure? The picture shows 2 of them, but the text says 18X1,5Mm, and it's def bigger than that. With the set I had either a 26mm or 27mm would fit, though they where not deep enuff to let me screw them into the flywheel without also screwing it onto the crankshaft.
@TBthegr81
Ditto! They all have bn on the cases AFAIKYou did unscrew the centre bolt on the puller, yeah?
It’s M27 x P1.0 L
Left Hand thread...(I have a m27 p1 R if anyone wants one?
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@SpookDog
The center bolt on the puller used the exact same thread size and pitch as the crankshaft, so I could screw on a much too small puller (for that flywheel) that fits nicely on the shaft.After further testing I could confirm it was M27 x P1.0 L so I'l order one such as that, but deeper than the one I already have... But with easter being a national holiday nothing will ship until earliest tuesday.
Also emailed a Swedish firm doing work on cylinders an they could bore it out an supply a new piston for a decent enuff price, I'm ready to pay a bit more just so I can actually ride the bike these few months of the year with good weather xD
Meanwhile I am also working on my 2 other bikes, the daily-driver scooter have a clogged mainjet so it's real slow on it's acceleration... Need to get it on the lift an clean the carb.
And the big heavy bike is being prepped for summer MC wacay, getting some sidebags for it, an swapping the bearings for the stearing, it keeps locking itself into a bad position an makes it hard to drive safely.. -
@SpookDog
The center bolt on the puller used the exact same thread size and pitch as the crankshaft, so I could screw on a much too small puller (for that flywheel) that fits nicely on the shaft.After further testing I could confirm it was M27 x P1.0 L so I'l order one such as that, but deeper than the one I already have... But with easter being a national holiday nothing will ship until earliest tuesday.
Also emailed a Swedish firm doing work on cylinders an they could bore it out an supply a new piston for a decent enuff price, I'm ready to pay a bit more just so I can actually ride the bike these few months of the year with good weather xD
Meanwhile I am also working on my 2 other bikes, the daily-driver scooter have a clogged mainjet so it's real slow on it's acceleration... Need to get it on the lift an clean the carb.
And the big heavy bike is being prepped for summer MC wacay, getting some sidebags for it, an swapping the bearings for the stearing, it keeps locking itself into a bad position an makes it hard to drive safely..@TBthegr81
I just assumed you were UK based, hence the PJME suggestion. They’re good. I’ve brought a rebored cylinder that was done by a well known UK ‘reputable Tuner’ and it looked like dogshit...Notchy steering is well annoying! And yes, dangerous!...
