Engine Jacket / Engine Wrap

[ProAlpine]

Are 2 stroke guys wrapping the pipe in the engine blanket? Or wrapping the engine only, keeping the expansion chamber outside?

 

[wwillf01]

I do only engine to keep the carb from freezing

Sent from my SM-F900U using Tapatalk

 

[ProAlpine]

I do only engine to keep the carb from freezing

Sent from my SM-F900U using Tapatalk

Are you running a carb heater as well?

 

[wwillf01]

For sure or the throttle sticks in deep powder. But you need both if the engine is submerged. I have had a few throttle cables break without both.

Sent from my SM-F900U using Tapatalk

 

[ProAlpine]

That's what I thought. Thanks

 

[DarthColin]

What I found making heat covers:

insulated material does not improve raising your engine temps, been there and make those out of romex........just real hard to cover everything. went back to UHMW plastic sheet. Sheet will stay on tucked with no bolts or straps, soft material is a bunch of bungies and I snagged the romex inbushwackin'.

plastic sheet ( best I found is " RACE CAR PLASTIC )" from Jegs, comes in colors if you want to match bike colors. $25 for a roll that will do 2-3 bikes

KTM 500 I use one 6mm bolt to hold it on. molded it with heat gun to fit behind shifter and fit behind kick starter lever and slide up under the tank and tuck inside my ACERBIS plastic skid pan.

I run a heat exchanger and 190 degree thermostat, I thought I had a total coverage set up last Dec when riding in 15 degrees 2 ft of new blower/fine fine snow grandules, but even climbing I couldn't get the bike temps over 170 poaching a track or 150 breaking trail, went home that nite and built a cover for the back of the motor/cover to deflect snow from the track in front down/ full cover over the pipe, and added a piece up under my left side gas tank and around in front of the frame to stop air passage under the tank where my left side radiator is missing. Next morning in colder snow, same deep stuff she would run 190 poaching a track and about 180 breaking trail. I can run the same on a 60 degree bright sun slush spring day, spot on 190 no matter.

Make a really really good tight fit template from sheet of tag board/ poster board like a campaign sign before you cut plastic.

Hi. New to this sport. I have a plan to make a custom cover using Sunbrella Marine Fabric. It has a lot of nice qualities. However, fire resistance isn’t one of them. I’m planning to work around by adding a layer of welding blanket to the inside, and sandwiching either one or two layers of InsulBright (about a 1/8” thick batting that has an metalized layer on one side.) Hopefully this idea and some tight fitting will retain heat for a bit. Will try the CanvasDuck NFPA 701 rated vinyl stuff if take one fails.

 

[Revv Up]

Are 2 stroke guys wrapping the pipe in the engine blanket? Or wrapping the engine only, keeping the expansion chamber outside?

A lot has changed from my first post I this thread 4 years ago, now I have a fairly large inventory of templates for different bikes (mainly 4 strokes) but have also included the 2017 KTM/ Husky 2 stroke carbed models & 2018 TPI’s as well as pre 2019 Beta smokers. So far feedback on them has been real good.