Cylinder/exhaust problems

[Calum]

It's not compression - See wikipedia

Love this GIF. explains it perfectly.

Any exhaust pressure lost through the manifold will result in a dramatic loss in power.

[Oisin]

@Calum So what would u recommend

[Calum]

Helicoil the cylinder.

[theportingmaster]

I have a mint condition cylinder from a 2003 that has been rebored and honed by Mick Abbey and with a new Mitaka Piston Kit, will post some photos if your interested. Has a full gasket kit with it.

[Oisin]

@theportingmaster Yes please do. What was rebored to or is it still 125cc?
Thanks very much

[Oisin]

@Calum Ok if u believe that's the best way to go then I'll definitely look into it.

Thanks a lot Calum

[theportingmaster]

Hi, was bored and honed by Mick Abbey to 137cc but still has rebores left.

[Oisin]

@theportingmaster how much u looking for

[theportingmaster]

Open to offers, cheers Terry

[Oisin]

@theportingmaster would u do €85 for the lot

[Calum]

@Oisin I mean, Mick Abbey charges like £150 for the porting working alone...so that would be like bargain of the century

[Oisin]

@theportingmaster Ok well I could do €125 for it

[Calum]

@Oisin Well, you ought to see what he comes back with first

[theportingmaster]

@Oisin cost me more than £125 so looking for £175 & postage.

[Oisin]

@theportingmaster how much would postage to Ireland be

[theportingmaster]

Hi, if you send me your postcode can get you a price for tracked delivery, think the price is about the same as posting in the uk. cheers Terry

[declan]

@Calum id take it for that price any day lol

[Oisin]

@theportingmaster I might be able to get my cylinder welded. Can I get back to u

[Oisin]

Just said I'd let u all know I got it fixed.
I used some jb weld and retapped it back our to m8 and seems to be holding now.
Thank you all for your help Oisin.

[declan]

@Oisin wouldn’t have thought that would hold doubt it will hold forever thoigh