Gents, I've poured over the old posts that a search on 'stinger' turned up and unless I've missed something (entirely possible) I didn't find any mention of the correct i.d., o.d.'s seem to range from 1 1/8" down to 3/4". My pipe where the stinger is snapped off is 3/4" for all intents and purposes so I can use that for my o.d. The piece of 3/4 stock I have here has a 5/8" i.d. and looks like it might be doable unless it's already to large inside.
I also need the length as I snapped that stinger off 40 yrs. ago and just don't remember.
Also, I see a lot of talk about packing. A coat hanger check on my pipe says there's not a darn thing in there, not even baffles it seems. Is that correct for the '68 pipe? 'Seems like it probably is.
There are some great pics of V416 on the first page of the thread of the same name including a closeup of the pipe which should be helpful. Advice and insights would be greatly appreciated as I'd really like to bring the pipe back to it's original 'tune'.
thanks in advance..., Fred
V416 OneMoreTime
Hi Fred,
Been following your thread, pretty interesting.
I just measured a stinger on a NOS pipe, it is 7 1/4 inches long from the weld onto the larger pipe, with an inside measurement of 5/8 inches. The OD is 3/4.
Your pipe is the earlier version of the one that I have as yours looks to only have two mounts for the wire heat shield and this pipe has three.
That stinger will sure give your Penton quite a nice ring a ding ding exhaust note :)
Hope this helps,
Paul
Paul, Yikes..! That's just what I wanted to hear, 5/8" i.d. Ten thousand thank you's. Now I know why I keep all those pieces of scrap stock (chuckle).
'One more thing though. I know I'd said that I didn't remember the length, and I don't, but it seems to me mine was short. Something like 4 " or so. Lo and behold while going thru the photo gallery this AM: I see a sunburst head steel tanker with a short stinger just about like I kinda sorta remember. I think maybe what I'll do is copy your 7 1/4" length, that way even if it turns out to not be exactly right for V416 later down the line it's just a tubing cutter fix.
Oh, and re: that ringa ding ding exh. note, I don't ever remember it sounding that pleasant. 'More like a 30 cal. Browning on full auto.:D
thanks again, Fred
V416 OneMoreTime
For OEM does the stinger angle off the last cone toward the shock?
Gooddirt, Mine does/did angle off towards the shock side of the bike.
Kind of like 'tucking in' towards the wheel/fender.
What I did was lightly dress off the broken tip/weld and will use that same approximate angle to reattach the new stinger.
I can get an approximation of that angle for you if you'd like, but Paul's OEM would be the last word on this one. 'Here if needed.., Fred
V416 OneMoreTime
I ran a straight edge along the inside edge of the last cone, extending past the end of the stinger. The inside edge of the end of the stinger is 1 1/4 inches away from the straight edge. The inside edge in this instance is the side of the cone and stinger closest to the frame.
Hope this helps.
Paul
As with all Penton specs, we all know that they could be different on 4 out of 4 bikes. Never owned a new 68, but my NEW 69 Six Day didn't have a "normal" stinger. My came with a painted VW exhaust tip for the stinger. It was chrome, but painted black to match the rest of the pipe. I was told that they used those VW pipe tips on some of the bikes, as they had a bit of a baffle to reduce some of the noise.
Donny Smith
Paragould, AR
Boy Donny, am I ever finding that out (4 of 4 different)! A few hours straight going thru the forum on just one question left me with a mild case of vertigo.
Imagine tying to explain to a judge why your bike was a 100 pointer. You'd need to know what time of what day of that year and have the guy's who assembled it on hand with a lie detector handy! [8D]
Fred
V416 OneMoreTime
Here are a few pics that might help.
This pic looks like an original pipe with stinger, not sure from the pic what the OD is, but it looks proper, maybe whoever has the bike can give us some info?
http://www.pentonusa.org/GalleryServerPro/default.aspx?moid=167&hr=1
This bike has what is referred to as a pickle silencer, Dane once said that he made some of these while at the KTM factory. I took the pickle off and the stinger has been removed and an adapter installed to make the pickle a tight fit, probably helped the bottom end a little as well.
http://www.pentonusa.org/GalleryServerPro/default.aspx?moid=170&hr=1
Roberto has some pickle silencers available.
http://www.ebay.com/itm/1968-69-Penton-KTM-100-125-SILENCER-Sachs-muffler-ISDT-/350373920355?pt=Motorcycles_Parts_Accessories&hash=item5193e9be63&vxp=mtr
Fred, here is V 425, it may have ridden over on the boat with V 416, it has a pickle on it but it is hidden in this pic.
http://www.pentonusa.org/GalleryServerPro/default.aspx?moid=168&hr=1
Paul
Paul, thanks! These are some of the pics I found in the gallery. #1 is closest to mine (except for that nagging thing about the length of the stinger). V425 has (at a glance) far more updated features than V416.
For instance: long seat, uncovered r/shocks, sunburst head, non 'pipe' footpegs, three bolt pipe guard, and round air cleaner. Not to mention someone rudely put their clutch lever right where I didn't need it in the pic:D.
As to the pickles, I think I'm going to just go right ahead and hear V416 just like I remember it, my hearing is noise damaged anyway and I'd just as soon ride my memories as try and put toothpaste back in the tube [B)].
By the way, I have my replacement stinger cut, fitted, and ready to tack up tomorrow. Thanks again for the 'follow through'! Stay tuned.... Fred
V416 OneMoreTime
Quotequote:Originally posted by Paul Danik
I ran a straight edge along the inside edge of the last cone, extending past the end of the stinger. The inside edge of the end of the stinger is 1 1/4 inches away from the straight edge. The inside edge in this instance is the side of the cone and stinger closest to the frame.
Hope this helps.
Paul
Hi Paul,
Is this the correct way that you described measuring your pipe? If so, than my pipe is 2¾" away from the straight edge instead of 1¼" like yours, which doesn't surprise me because I could see that the pipe is kinked right where the stinger is welded on.
(http://img72.imageshack.us/img72/1645/1008852.jpg)
(http://img826.imageshack.us/img826/4160/1008863.jpg)
(http://img204.imageshack.us/img204/2425/1008868y.jpg)
(http://img252.imageshack.us/img252/2135/1008874.jpg)
Gary
Hi Gary,
Yes, that is the method.. Does your heat shield have three mounts or two? What are your stinger measurements, OD, ID and length. Do you feel it is original, it looks correct.
Fred, you sure go us going on this topic and it is both fun and informative.
Thanks,
Paul
Paul,
The heat shield has three mounts. I can't see any evidence that the stinger has ever been touched, so I'm going to say that's it's original, and it has the exact same dimensions as yours.
Gary
'Opened a can of worms didn't I Paul! I glad you're having some fun with it as it's certainly helping me out and it looks like Gary too now.
I'm still pondering the length thing as I'd mentioned before. In fact the pic I'd found on the archives is found in the '05 Pickerington OH file, #87 of 137. The bike in the foreground clearly shows the stinger ending right below the rear number plate bolt and that looks like around 4" like I think mine was. These guys may have simply cut them off way back when to make them less vulnerable(?). I think they did it just of aggravate me.[B)] Fred
V416 OneMoreTime
Hi Fred,
The first link Paul posted earlier in this thread takes you to a picture of my bike which is serial #V0144. That picture doesn't show the exhaust real well but I do have some very good pictures of the exhaust stinger from when I first bought the bike. The stinger on my bike measures approx 7.25" long and the OD is 1.125". The reason I took the pictures in the first place was because the stinger did not look original to me and I had some questions about it at that time. The thing that looked out of place was a thin piece of flat steel welded between the chamber cone and the stinger. This piece of flat steel is welded to the inside of stinger/cone and resembles a fin. It is also shaped to fit around the top of the shock so that it won't rub the shock body as the suspension travels. In my opinion this piece was most likely added to strengthen the stinger and is not original. Its possible that the entire stinger could have been replaced when this modification was done but I really don't know for sure. I forgot how to post pics on the site for all to see but would gladly email the pics to anyone who would like to check them out. Drop me an email thorough the site if you want to take a look.
Dave McCullough
Dave,
I can post them for you. Did you get the pic of the clutch cover?
[email protected] Mike
Here are pics of Dave McCullough's 68 Steel Tanker Stinger
(http://i232.photobucket.com/albums/ee220/454MRW/DaveMcCulloughs68SteelTankerStinger-1.jpg)
(http://i232.photobucket.com/albums/ee220/454MRW/DaveMcCulloughs68SteelTankerStinger-2.jpg)
(http://i232.photobucket.com/albums/ee220/454MRW/DaveMcCulloughs68SteelTankerStinger-3.jpg)
(http://i232.photobucket.com/albums/ee220/454MRW/DaveMcCulloughs68SteelTankerStinger-4.jpg)
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
Mike to the rescue again re: pic posting! [8D] Dave, I think you're absolutely right. Your pipe's had a major change at some point in it's life with that tip. On the other hand it seems like whoever did it put some thought into it but just didn't have the right size stock on hand for the tip and 'went for it' anyway. 'Not the end of the world. I'm using the specs Paul gave us to replace mine since it was MIA anyway. Fred
V416 OneMoreTime