gillie
1st Class Ticket
Posts: 62 
|
Post by gillie on Oct 25, 2016 22:33:53 GMT
a mate asked me today if he needs a rebore as his scooter has done 25,000 , i always rebored mine at 20,000 and went up a piston size , what are your guys thoughts , i know you can measure the bore or ring gap etc but wondered what you think
|
|
|
|
Post by henri on Oct 26, 2016 7:30:17 GMT
ive seen well cared for engines go 30,000 miles on original rings/seals/bearings , easiest way to check is pop the head off an feel the wear ridge at top of bore .or do a compression test , anything under 100psi is worn ,under 75-80 psi def needs attention . H
|
|
|
|
Post by bryno on Oct 26, 2016 8:42:54 GMT
^ likewise, personally I avoid as re-bore until you absolutely have to do it, would pop fresh rings in it first to restore a bit of life, but only if it feels like it needs it, down on power, hard to start, compression feels low etc.
|
|
|
|
Post by djloone on Oct 26, 2016 21:46:17 GMT
If running fine..have a check but dont feel the need too change anything..could just be a fine strong lump  LOON-E |
|
