Print Page - 1975 KTM 250 Squish

Title: 1975 KTM 250 Squish
Post by: Scootern29 on January 29, 2018, 04:47:00 PM

Does anyone know the correct squish measurement to a 1975 KTM 250 mx motor? I was told .030 and no less than .025.

Thanks in advance.

Title: 1975 KTM 250 Squish
Post by: Jerry Birky on January 30, 2018, 09:41:33 AM

from my experience any less than .040" is asking for trouble.

Title: 1975 KTM 250 Squish
Post by: G Ellis on January 30, 2018, 11:03:08 AM

The trick is to set deck height to .052 hope this helps.

Title: 1975 KTM 250 Squish
Post by: Kip Kern on January 31, 2018, 07:06:53 AM

Some piston manufacture info has the measurement. Penton manual also has the info per displacement. Each KTM engine is different

Penton Owners Group