micus

hey there Marty, no ive not asked on Zenith builders. Forums seems sort of dead but ill ask. I havent gotten my finishing kit so no gear or anything as of yet but i will inquire with Zenair. Thanks for getting back to me here, id really like to be able to order one VS having something fabbed. I went through your build the other night, Fantastic work, and very inspiring considering the materials youve been working with!

Hi there fellow Zenith enthusiasts. I am a kitbuilder of a ch701. I see lots of the Kiwis are flying with what appear to be a modified front gear/fork to accommodate a larger than factory tundra tire (26"?!?). Are these just being built custom or is there a place to buy one off the shelf. I too plan on running ridiculous Tundra's on my airframe once complete. I cant find much online through the old Google machine. Thanks for any leads, Mike.

Good points. I've never heard of a 2 stroke being outlawed or restricted in anyway?? I'm in Canada mind you, not sure what's happening elsewhere in the world. Mike.

This Engine looks unbelievable on paper for the LSA/ultralight crowd. Does anyone have any real world experience with it? Its 1/3 the price of a 912uls, looking for real world reasons to not love this thing. Mike.

Hello Gentlemen! I see lots of you are from Australia, im making an assumption here but i can only imagine there arent lots of snowmobiling opportunities for many of you where you live. anyway, I have been around sledding quite a bit in my life and have owned a number of them. From a Canadians perspective (who sleds regularly) the Yamaha 4 strokes are considered to be the most reliable sleds a guy can get. They arent popular in the rockies because of the sleds weight compared to the Skidoo etec/ arctic cat/ or polaris 2 strokes that are available- this is a sled weight issue not an engine issue. Anyway, out east where they dont do much powder riding and stick to trails the Yamys are super popular. It is not rare to see these sleds with over 30,000k on them. Hours wise this is 2000hrs + (the sidewinders and Apex's have hr meters in the gauge cluster for maintenance). The YG4 Apex is the NA 4cyl, the Yg3 NA is in the Nytro 3 cyl, and the Yg3 turbo (998t) is the sidewinder which yamaha is still producing in 2024. Notably the sidewinder (998t) is a fn beast. the internals are good to 400hp, aftermarket tunes bring the sleds to 300hp just on tuning but with injectors/turbo and fuel rail guys are pushing stock rotating assemblies beyond 300hp regularly. For what its worth, from my perspective anyway, i wouldnt think twice about flying behind one at all, lots of guys in the states have been flying Gyros and LSA's for over a decade with the raven adapters when only the old RX1 bike motors (same as YG4 apex engine) were available and logged many hundreds of hours. Some interesting resources for anyone interested in powering aircraft with the Yamaha, you should check out some of the following: BD Turnkey engines Steve Henry and Wild West Aircraft Edge performance engines (Epex line) Project Kitfox (youtube) Eddie Sanches highlander (devil girl) Skytrax gear boxes GT gyro Raven PSRU's and adapters Anyways gents take care, hope all is well in the land of Aus. Mike.

Hello all, Mike joining from BC Canada. I am a recreational flyer living in the middle of the Canadian Rockies. My main interests are big game hunting, aviation, and time with my wife and two young boys. Life has been extremely busy the last 3 years as my wife and I welcomed our two boys into our lives. So with less time and hair on my head than ever, I decided to order a kitplane from Zenith/Zenair in the form of the CH701-excellent timing/planning I know. It looks like there is a pretty healthy Zenith community here in addition to its Afrikans Cousin the Savannah! please don't mind my overly simplistic comments if i happen to drop in on any of your topics!