Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Messages - Mike Rosso

#1
Penton Talk / Re: A Bit Off Topic KTM 504 crank
November 20, 2022, 09:16:54 AM
Bill there's nothing you need to do as it can stay in place when separating the crankshaft when replacing the connecting rod. At KTM we had "crank" separating plates made by Dane Leimbach for some and earlier by either Ted or maybe Dane too. The crank plates had a "U" shape cutout and then stepped to accept the shape of the inside crankshaft flywheels. This way the crankshaft laid flat and you then pushed one side flywheel off (not the big end pin first). The you flipped the other flywheel half over and then pushed the pin out of the flywheel. A trick I learned was you could very carefully use a oxy/acetylene cutting torch and from the big end connecting rod pin's center cut a thin line outward to stress relieve the pin's tension and the pin was very easy to remove at this point. Surprisingly I learned that the press fit tolerance of pin to the flywheel would not transfer the heat from the cutting torch quick enough and it would avoid damaging the flywheel as you got close to the outer edge of the pin. Also you need to remove the main bearings to do this correctly. You can access the big end pin on the oil sling disc with a smaller pin like a piston wrist pin to push the big end pin out of the oil sling disc side. If I can find photos of the crank separating plates, I'll post them.     
#3
Thanks Al. Found it, thanks again Al  :)
Mike
#4
Any chance of getting a POG Meeting Calendar, when and where pinned so we know about it. I missed the last one thinking it must have been in conjunction with the Cleveland IX Center Piston show. Jim and others used to post a week to a month in advance when and where. If we had a thread dedicated to it, it would really be nice. THANKS in Advance.

Mike
#5
Penton Talk / Re: Domino Lever parts needed
March 30, 2022, 12:20:26 PM
Have you tried any of these links: https://domino-usa.com/vintagebikes/ and https://domino-usa.com/dealers/

Also I know KTM's used Donino "Six Day" style controls before the hydraulic clutches so you might look for pre-'98 KTM controls in a search in online parts fiche for the EXC and RXC models. I have a set of Domino Six Day controls on my '83 PE175 Full Floater and don't remember where I got them  ::) ;) :D
#6
Penton Talk / Re: Decals on Plastic Tanks...
March 13, 2022, 11:19:34 AM
That might be your problem? We've had issues on KTM models with some or most of those one-way vents where they will just sitting the check (ball) system will raise and seal from gasoline vapor pressure. At that point the vapor starts to permeate through the plastic as it's the only way out. Try it without that one-way valve for a bit and see if there is a difference? You can sometimes tell if the one-way valve is not working or doing what I just explained by putting an ear close to the cap and opening it or by pulling the vent hose off too and listening for the pressure releasing. If it's not that valve....."I got nothing"  ;D ;D ;)

Mike
#7
Penton Talk / Re: Decals on Plastic Tanks...
March 13, 2022, 03:53:44 AM
Does your tank have one of those one way valves in the gas cap vent hose?
#8
Penton Talk / Re: Penton heroes - Frank Gallo
February 25, 2022, 02:04:57 PM
QuotePossibly the peak of Frank's racing accomplishments came in 1978 when, were it not for elimination of all scores from the final day due to wet and muddy conditions,

According to Frank it wasn't all that muddy as compared to some of the Ohio Hare Scrambles he's won overall many, many times!  ;D  ;D  ;D

Mud? What mud? You won't find Frankie in this photo from Sweden ISDT '78 final motocross test, he was long gone! My hero Frank! Hey Frank I wonder if you can start that one backwards like that final moto in OK......you got it running the correct direction and still won that moto test at the qualifier  ;)
#9
Hi Bud, are you going to be at the POG meeting tonight?
#10
February 10, 2022 POG MEETING KTM AMHERST ! Just thought I'd say that as a reminder  :)

#11
Penton Talk / Re: Thanks and Photo Test
February 09, 2022, 07:17:23 PM
Yippy we're here together again. Thanks to all responsible! Seems great already,
#12
Penton Talk / new year
December 30, 2021, 08:14:26 PM
Agree, nicely put :) HAPPY NEW YEAR to ALL

Mike
#13
Penton Talk / December is Family Nite meeting
December 01, 2021, 06:41:54 PM
bump :)
#14
Penton Talk / Exhaust builders/parts?
November 12, 2021, 12:09:49 AM
Dyno Port used to make some of the best KTM 2-stroke pipes available and used to sell pieces-parts for tuning and repair. Don't know if they still do that? If not maybe they can steer you in the right direction? They're in NY State in the finger lakes area.

https://dynoport.com/
#15
Penton Talk / Centerstand quetions....
November 06, 2021, 03:05:05 PM
Centerstand placement miss [:0]  [V]



Mike