What Did You Do To Your PENTON Today?

[400gs6]

Just dragged this old Steel tanker out of the raters of a barn over the weekend.  Been in there for decades. Cleaned the tank/carb/filter and it fired up third kick!

[Mick Milakovic]

Just picked up this 250 MC5.  Frame #550-03573 engine #6-5412042.  The frame ID guide stops at 1977 and I was told this is a '78.  What do the numbers say?  Also, the date clock is blurry; I can't tell if it says 1976 or 1978.  Is there a way to tell from the numbers?  You can see from the second picture why the bike was taken apart.  How would you guys go about getting the ignition off?

[Dale Sonnenschein]

Mick, The flywheel broke off? The crank stub looks short too. Would you be able to get a puller threaded into what's left of the flywheel? It should pull right off if your lucky!!

73 Jackpiner
73 Husky 360 WR/RT
76 Husky WR360
78 husky cr250
10 ktm 250xc
02 bmw r1150r

[Mick Milakovic]

Yes, flywheel broke, so nothing to hold onto.  I'll try my air compressor tomorrow, maybe it will zip right off.

Mick

[454MRW]

Mick,
In my opinion you have a late 76 engine, possibly used in early 77. All 76-77 MC-5's used the 550- frame numbers, and the engine is 12,042 which was most likely built in late 76 (6-5412042). I have not seen 76's with a serial number higher than around 3000, and your is 3573, so i would guess the bike is an actual 77, so look at the rear seat rails and compare them to this thread:
http://pentonusa.org/forum/topic.asp?TOPIC_ID=12033&SearchTerms=frame,serial,numbers

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]

Thanks Mike.  My frame is like the top picture, so '77.  Somebody must have painted it orange.  When KTM took control in '78 did they change the 550 frame # use?

Mick

[454MRW]

Good question, because I have a late 77 MC5 rolling chassis with an orange frame, and Gary has at least one orange frame with dual position footpegs. I wonder if that coincides with the time that John signed it over. The 78 MC5's have 855- serial numbers. 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

[skiracer]

That paint looks factory to me....

quote:Originally posted by Mick Milakovic

Thanks Mike.  My frame is like the top picture, so '77.  Somebody must have painted it orange.  When KTM took control in '78 did they change the 550 frame # use?

Mick

1976 MC 5 Original Owner
1982 Suzuki PE 175
1976 Penton 175 GS
1976 Penton 250 GS

[skiracer]

Put the bike in gear, put the rear wheel on the ground, and use your air wrench, should come off...

quote:Originally posted by Mick Milakovic

Yes, flywheel broke, so nothing to hold onto.  I'll try my air compressor tomorrow, maybe it will zip right off.

Mick

1976 MC 5 Original Owner
1982 Suzuki PE 175
1976 Penton 175 GS
1976 Penton 250 GS

[454MRW]

DO not put the bike in gear unless you like damaged trans gears, but the air wrench will loosen the nut without having the bike in gear. Remember, loosen clockwise not counter clockwise. 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]

I got the nut off with my air wrench but the remainder of the flywheel is stuck.

Mick

[454MRW]

Is the center steel insert still intact with the threads for screwing in a puller? 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]

Mike, the center insert threads are good, but unfortunately my puller is not and I need to get a new one.  I've got to go see Gary in a couple weeks so I'll wait until then to pull the broken flywheel off.  I think this bike will run soon.  Thanks for the advice!

Mick

[Dale Sonnenschein]

Last night I got the lower end in my jackpiner. Tonight I got the cylinder and head on, put the motoplat in and wired.

73 Jackpiner
73 Husky 360 WR/RT
76 Husky WR360
78 husky cr250
10 ktm 250xc
02 bmw r1150r

[Dale Fisher]

Awesome as always Bawb!
 

Dale Fisher
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'70 Six-Day 125 - V2017
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'73 Jackpiner - 175 21159727
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