Johnston Performance Chainsaw & Small Engine Repair

Johnston Performance Chainsaw & Small Engine Repair Johnston Performance Chainsaw helping you do more work faster! Whether your timber falling or cookie cutting I can build a saw to fit your needs.

There is no we here. When you call I will answer the phone and I will be the one to service your needs. small engine repair

Before and after dyno runs of a brand new 592xp. 33% horsepower increase. Chainsaw porting service www.jpsaw.com
06/19/2026

Before and after dyno runs of a brand new 592xp. 33% horsepower increase. Chainsaw porting service www.jpsaw.com

06/12/2026

Got the pipe done for the 140cc pipe motor. Took a couple test hits, wood is very dry

My run from this past weekend's race in the Super Mod Muffler Open Class with the 140cc 3120
06/09/2026

My run from this past weekend's race in the Super Mod Muffler Open Class with the 140cc 3120

open muffler class from Sawpalooza 2026 running a 140cc 3120

Brand new 550XP on the bench for porting. We'll see how much power it makes on the dyno in the coming days! Chainsaw Por...
06/01/2026

Brand new 550XP on the bench for porting. We'll see how much power it makes on the dyno in the coming days! Chainsaw Porting Service www.jpsaw.com

Check out the Dyno run of the Woods Ported 395XP. Freshly rebuilt and ported. Logger who sent it add some extra venting!
05/30/2026

Check out the Dyno run of the Woods Ported 395XP. Freshly rebuilt and ported. Logger who sent it add some extra venting!

Johnston Performance Chainsaw shows you the Dyno run of a Woods Por...

05/23/2026

Check out my Nasty Woods Ported 395XP! Chainsaw Porting Service www.jpsaw.com

Dyno run of a Stihl MS880. Saw made great power! Chainsaw Porting Service www.jpsaw.com
05/11/2026

Dyno run of a Stihl MS880. Saw made great power! Chainsaw Porting Service www.jpsaw.com

Johnston Performance Chainsaw shows you the Dyno run of a ported Stihl MS880. Chainsaw Porting Service www.jpsaw.com

Check out the video of the Ported Echo 7310 on the dyno. Saw picked up a 51% HP increase! Chainsaw Porting Service www.j...
04/13/2026

Check out the video of the Ported Echo 7310 on the dyno. Saw picked up a 51% HP increase! Chainsaw Porting Service www.jpsaw.com

Johnston Performance Chainsaw shows you a woods ported Echo CS-7310 Chainsaw Porting Service www.jpsaw.com

Here's the Dyno run of the woods ported Husqvarna 592XP Chainsaw Porting Service www.jpsaw.com
03/28/2026

Here's the Dyno run of the woods ported Husqvarna 592XP Chainsaw Porting Service www.jpsaw.com

Johnston Performance Chainsaw shows you the Dyno run of the woods ported Husqvarna 592XP. Graph is shown with the stock run as well. Chainsaw Porting Service...

Check out the 592 port work and Dyno sheet. Saw made 7.6hp in stock form and an impressive Max HP of 10.2 with a 3 run a...
03/27/2026

Check out the 592 port work and Dyno sheet. Saw made 7.6hp in stock form and an impressive Max HP of 10.2 with a 3 run average of 10.03hp. Chainsaw Porting Service www.jpsaw.com

Address

N906 Highway M35
Menominee, MI
49858

Telephone

+19205620096

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