My new project bike KTM MC 175cc

[Chakka]

Try PJ1 Paint, the color is KTM Silver Grey. Its a dead on match. If you can't get it locally try this link, I've ordered with good success from them.

http://www.ktmcyclehutt.com/ktmstore/hardparts/paints_coatings.htm

Chris

[motogon]

Couple more questions:
1. Amount of oil in transmittion?
2. Any special recommendation on oil used?
3. I need rubber boot between carb and air filter box. I have Lectron carb - 70mm connection diameter. Air filter box outlet diameter ~ 72mm. Any ideas?

Thanks in advance!

Andrew
^^^^^^^^^^^
1976 KTM MC5 175
2006 Husky TE/SM 510
2004 Zuki V-Strom 1000

[John E]

You really want to start something, don't you? Gear oil really starts things flying.
But Tom Penton told me: two quarts of ATF.
Good enough for me.

JE

[motogon]

ATF?

Andrew
^^^^^^^^^^^
1976 KTM MC5 175
2006 Husky TE/SM 510
2004 Zuki V-Strom 1000

[tofriedel]

Automatic Transmission Fluid

Tony

[Dennis Jones]

If you use the search feature at the top right of this page you can find more info on oil than than you can digest. I constantly use the search when working on my bikes.

Dennis Jones

[motogon]

How about my other question:
I need rubber boot between carb and air filter box. I have Lectron carb - 70mm connection diameter. Air filter box outlet diameter ~ 72mm. Any ideas?


Andrew
^^^^^^^^^^^
1976 KTM MC5 175
2006 Husky TE/SM 510
2004 Zuki V-Strom 1000

[John E]

Try OzKTM for rubber parts;

home.iprimus.com.au/hyrockpk/index1.htm

...if Al Buehner doesn't have it.

JE

[motogon]

quote:Originally posted by Chakka

Try PJ1 Paint, the color is KTM Silver Grey. Its a dead on match. If you can't get it locally try this link, I've ordered with good success from them.

http://www.ktmcyclehutt.com/ktmstore/hardparts/paints_coatings.htm

Chris

What I need to do to prepare surface for painting? Is sanding enough? Any recomendation?

Andrew
^^^^^^^^^^^
1976 KTM MC5 175
2006 Husky TE/SM 510
2004 Zuki V-Strom 1000

[Chakka]

Andrew,

I always sandblast the frame before painting it. The old powdercoat finish is tough as nails and if its scratched up as most are its really hard to get an even surface. The sandblasting not only takes care of that but also eliminates the 30 years of gunk, dirt, oild oil that accumulates in every crevis. After sandblast I prime with PJ1 or Krylon and spray the silver gray.

Chris

[tooclose racing]

Hi Guys -  for a lark, I searched "MC 175" and found the string you are looking at now.  Low and behold, my good friend (from across the political aisle...) Gary Ellis was offering his advice and counsel to another POGGER back in 2006.

Deja Vu, my friends.

It's 2015, he's still alive (really, he's not THAT old) and he has just built me an MC5 175 with PVL ignition, an NOS 34mm Lectron carb sourced from Mr. Al Buehner (thanks again Al...), fresh DC plastics, Mini-Hi Renthals, and a pair of Rod Gorzny-refurbished Zoke shocks. I've left out the TONS of elbow grease and late nights Gary put into this BTW.  Did KTM build 1976 MC5 175's?  Not according to Gary, but they were built in 1977.  Sorry- I just like the 76 graphics better.  But enough - check out the curves on this Lassy:



Mr. Mike Winter (and friends) are helping me get this little doggie to Unadilla for next week's XC race.  Almost hate to get her dirty. But I will.  []

Thanks, Gary.

[454MRW]

I attempted to put a 7 fin (large fin) engine in a 76 MC-5 125 frame, which is the same frame used for 125 & 175, and found that a significant amount of grinding was necessary on the cylinder head for the exhaust  pipe to clear. The only production 76 175 was the GS or more commonly known Cross Country model, and it had the large fin 7 fin engine. At least there is no mention of a 175 option in the 76 MC-5 chassis manual. The more race oriented 6 fin 175 was introduced into regular production in 77, so the clearance issue and the performance designed for motocross improvement may have been the deciding factors in waiting for the 77 model to make production 175 MC5's. There may have been some one off MC-5 bikes built for the factory racers in 76, but I haven't seen any. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S
1975 Can Am 175 TNT & 77 250 Black Widow
1979 Husqvarna OR390
1976-78 RM & 77-79 PE Suzuki's
1974 CR250M 07 CR125R 79 CR250R

[Mick Milakovic]

So what about the fit of a 250?  Gary is rebuilding my 250 motor right now and I'm going to put it in what I believe is a 76 frame.  Will it fit?

Mick

[Dave Withrow]

Probably a great resource for info on the 76MC models is Mike Lenz.  He raced a pre production 250 or 400 in the Florida Winter series......great stories

Big Dave

[454MRW]

All KTM 125-400 engines will actually fit in all 76-77 MC5 frames, just use the 6 fin engine on a 175, and the only thing difference I can tell is the 125/175 frames have a mid mounted exhaust mount on the right hand side beside the airbox just in front of the right hand shock mount that will have to be removed to fit a 250 or 400 pipe in there, and you would need to add a right rear exhaust mount. I found the 125 frame to be a tight fit when adding a 79-early 80 aluminum swingarm, which required doing a little grinding on the rear of the engine cases for clearance, but a stock swingarm works fine. If you are considering installing a 400, I would add the lower engine mounts in a frame without them or vibration will be worse and wear the other engine mount bosses on the engine cases. Mike
**I corrected my statement about the 175 to a 6 fin engine.**

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S
1975 Can Am 175 TNT & 77 250 Black Widow
1979 Husqvarna OR390
1976-78 RM & 77-79 PE Suzuki's
1974 CR250M 07 CR125R 79 CR250R