What's on your bench?

[slackinoff]

The Redmax EBZ8500 backpack blower saga for my lawncare friend has come to an end. A good end though. I cleaned up the cylinder and deburred the new AM piston aggressively since the cylinder was not in the best shape. I wanted to give it the best chance possible to run another season.

The blower has really good compression and runs very strong now. It will be interesting to see if he can get another season out of it....I think he will.

I wanted to use the oem piston pin (btw look at how THICC that thing is, lord have mercy) but it was a touch too tight in the AM piston, even after deburring the edges.

 

[pbillyi69]

i like the assortmet of oils on your bench. i used to have a similar pile.....they all got dumped into one container so i didnt have all of the bottles laying around

 

[Canadian farm boy]

 

[Stefanseiner]

cheap chinese chainsaw which is my test object to learn how to modify and port engines for more power

 

[GerbrandR]

Cleaned up a scored cylinder by hand. There are some vertical lines visible above the exhaust port. Is this a big concern? I can feel them with my finger nail.



It looked like this before:

 

[Ketchup]

A little hand sanding on the ridges can help sometimes. If it takes a lot of rotary sanding I worry about the plating around the port edges.

 

[Maintenance Chief]

Cleaned up a scored cylinder by hand. There are some vertical lines visible above the exhaust port. Is this a big concern? I can feel them with my finger nail.

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It looked like this before:

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Keep working that cylnder like its your first time riding in the back of the Baptist church van with the cute girls!

 

[rogue60]

Done and dusted 2002 RM250... don't think I'll do any more 2T mx bikes for awhile is expensive and a pita finding parts for them with most parts being no longer available. Scored finding a nice stock pipe and muffler for it very hard to find now not destroyed.
Anyways runs sweet after tuning and setting power valves.. was just a budget build this one is nothing special got less than 3k in it.

 

[Canadian farm boy]

372xp.

 

[Kiwioilboiler]

Done and dusted 2002 RM250... don't think I'll do any more 2T mx bikes for awhile is expensive and a pita finding parts for them with most parts being no longer available. Scored finding a nice stock pipe and muffler for it very hard to find now not destroyed.
Anyways runs sweet after tuning and setting power valves.. was just a budget build this one is nothing special got less than 3k in it.View attachment 403900View attachment 403902View attachment 403903View attachment 403904

K2 to K8 RMs are stupid money here. Best offroad bike there was before Ktms took the vacant spot IMHO. Or maybe a tamed KX of similar vintage.

 

[rogue60]

K2 to K8 RMs are stupid money here. Best offroad bike there was before Ktms took the vacant spot IMHO. Or maybe a tamed KX of similar vintage.

Yeah very easy engine to setup the power delivery how you want. It only takes a few minutes to retard or advance timing and set power valves for soft or savage mid hit power band. I've got it all set on savage mid/top and plenty of over-rev lol

 

[Kiwioilboiler]

Yeah very easy engine to setup the power delivery how you want. It only takes a few minutes to retard or advance timing and set power valves for soft or savage mid hit power band. I've got it all set on savage mid/top and plenty of over-rev lol

We used RM triple taper carb needles in the Katos. Game changer. Probably big part of what made the RMs so smooth in the bush.

 

[rogue60]

We used RM triple taper carb needles in the Katos. Game changer. Probably big part of what made the RMs so smooth in the bush.

The carb has a TPS and adjusts timming from what I can gather and a power jet with solenoid apparently it cuts fuel to the power jet up top for more over- rev. It's was easy to jet for my elevation.

 

[drf256]

261 Arctics. What PITA’s. After doing 10-15 261C’s ( and multiple other models of Arctics) I never thought these might be challenging.

Guess the switch being in the top cover shoulda tipped me off. Took multiple pics, but decided to leave one together as a working model for reassembly.

These are for personal use and 2 friends. Never again, Lolol.

 

[Canadian farm boy]

Few more things to do yet. I’m gonna put the FW on a diet and I still need to machine and port the cylinder.

 

[heimannm]

Mark

 

[av8or3]

Building up an 026 to give to a friend.

 

[nbbt]

Did some maintenance on a 572XPG between uses. Cleaned it up, and regreased the clutch bearing, a chain dressing. Just general usage stuff this time.

 

[heimannm]

Cleaned this one up for the display, no intention of making it run again.









This has had apparently cut a lot of wood judging by the wear on the bar.



Mark

 

[Maintenance Chief]

Cleaned this one up for the display, no intention of making it run again.

View attachment 405346

View attachment 405347

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View attachment 405349

This has had apparently cut a lot of wood judging by the wear on the bar.

View attachment 405350

Mark

"And category for worst carburetor placement goes too....."