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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Camshafts for ls650 ? /cgi-bin/YaBB.pl?num=1748048792 Message started by Peter Fonda on 05/23/25 at 18:06:32 |
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Title: Camshafts for ls650 ? Post by Peter Fonda on 05/23/25 at 18:06:32 so I’ve got a 08 Suzuki boulevard ls650 s40, and looking to maybe swap in a cam, something that would help with some extra chop in the idle. Maybe even some more bottom end power. Right now the bike is all stock except for a Emgo muffler, and wouldn’t mind having a better air filter for it as well. |
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Title: Re: Camshafts for ls650 ? Post by Dave on 05/24/25 at 03:50:30 All of the available performance cams have very little valve overlap and they have no affect on how the engine idles - the engine idles and runs smoothly after installation. The performance cams do add some torque and horsepower - they work even better with the addition of a Wiseco piston to increase the compression. The available cams are the Webcam Stage 3 available from Lancer in the Marketplace section - or you could try and find a good used DR650 camshaft from the early model bikes. If you use a DR650 camshaft you will have to drill oil holes in the lobes to use it in the Savage, and I also drill the center hole to match the size of the hole in the Savage cam. |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 05/24/25 at 04:54:50 Ah, in other words I’m likely best to just leave it alone then lol unless I ever had to do the piston or something of such |
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Title: Re: Camshafts for ls650 ? Post by LANCER on 05/24/25 at 05:19:16 Not necessarily, a cam swap is not difficult if you have some basic mechanic skills. A piston swap takes a bit more skill and a few more tools, and some more time, but is doable as well. Many folks here have done both successfully. |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 05/24/25 at 05:39:20 Swapping the cam would I really notice much difference ?? Like I did a stage 2 cam swap on a Honda 450r quad I had, and it made a big difference for mid to top end. |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 05/24/25 at 16:37:46 This old post will give you a good idea of what to expect when you install a mild cam like the old DR650 cam. As Dave previously mentioned, you absolutely must drill the oil holes. Other than drilling the holes, the cam swap is very easy and can be accomplished with common hand tools. http://suzukisavage.com/cgi-bin/YaBB.pl?num=1626391255 The old post also includes links to modifications to the air box, carb, and exhaust system. Each old post measures acceleration so you can do comparisons of the before and after performance. You will be amazed at the improvement. Up to and including the cam swap, all the mods are low hanging fruit. You can also find all this stuff in the Tech Section. |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 05/25/25 at 09:47:49 I did some looking around and happen to come across the cam on Amazon [ch128558] https://a.co/d/eP6kvNO |
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Title: Re: Camshafts for ls650 ? Post by ThumperPaul on 05/25/25 at 10:58:51 Holy "ZiKueeo". Hey, it looks like it even has predrilled holes! "Made of strong and wear-resistant materials, it adapts to a variety of driving environments, ..... I wonder what kind of "chinaesium"alloy" its made with. Interesting that it adapts to a variety of drving environments. I wonder what those buzz words strung together really mean. Call me a cynical jaded skeptic. But, its cheap so I might try it. No reviews.... |
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Title: Re: Camshafts for ls650 ? Post by Dave on 05/25/25 at 11:07:44 Weird....it has oil holes in the cam lobes, and yet the original DR650 does not use those. There is no information about lift or duration - who knows what they are? It could be a cam for the LS650 - but they are promoting it for use in the DR650. It is not something I would buy and take a gamble on.......it is anybody's guess what it is and what it is made from. |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 05/25/25 at 22:56:18 Well look at you Easy Rider. Score! A knock-off cam and it actually looks close to correct. Thanks for the link. It inspired me to search Amazon a bit more and I came up with what looks to be the same cam for about $94 bucks. I went ahead and ordered one. They provide an illustration with dimensions. Only one dimension was different than a stock cam (28.3mm steady bearing vs 25mm). I'm hoping that is a typo. All the other dimensions look to be OK (not perfect but OK). The cam should be here no later than July 1st. When I get it I will do a full dimensional inspection along with timing checks. We shall see what zhengzhoujiafeimaoyl is up to. Are they rascals selling junk or is this a legit replacement. I don't need a new cam, but I'm always game for a good product report. It's cheap enough so why not. This is the link for the $94 buck item. Amazon.com: ZHAHggGo Suitable for D R650 R650RE R650S R650SE R650SM R650RSE R 650 R S 1990-1996 Model Motorcycle Camshaft 12711-12D00 SP44B : Automotive |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 05/25/25 at 22:58:39 Don't know why the link isn't active. Let's try another way. https://www.amazon.com/ZHAHggGo-Suitable-1990-1996-Motorcycle-12711-12D00/dp/B0F8M9JSNM/ref=sr_1_2?crid=3JU5ZC1ZHASRK&dib=eyJ2IjoiMSJ9.UL9R396ElecxEymp49QLdObvMZMjONz6d55nnK11yCk.5RPSXp1Pv960UbFyva_fdNIWI2ZJ0GhaJQ5Yz-FWiUo&dib_tag=se&keywords=Compatible+motorcycle+dr650+1990-1996+12711-12d00+sp44b+camshaft&qid=1748236480&sprefix=compatible+motorcycle+dr650+1990-1996+12711-12d00+sp44b+camshaft%2Caps%2C226&sr=8-2 |
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Title: Re: Camshafts for ls650 ? Post by Dave on 05/26/25 at 07:51:57 DragBikeMike is the perfect guy to look/measure this "Chinesium" cam and see what it is. Seems odd that they drilled holes in a cam meant for the DR650.....the stock Suzuki DR650 cams don't have holes. 7D7B74080A0D09390 wrote:
If I view the photo and hold a straight edge against the 25mm bearing surface in the middle of the cam - it seems to show that the steady bearing surface is indeed larger (28.3mm) than the inner bearing surface. |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 05/26/25 at 12:02:35 Well that be awesome to see how true it is, and maybe they added oil holes to make it more sufficient ?? And the price difference you found compared to what i posted is that im in Canada and youre likely the states |
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Title: Re: Camshafts for ls650 ? Post by ohiomoto on 05/26/25 at 17:40:36 71777804060105350 wrote:
8-) |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 05/27/25 at 06:18:23 Looking forward to see how this cam is dragbikemike and whether it actually worth the 130$ for it to have in my bike :))) lol or if it garbage lol |
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Title: Re: Camshafts for ls650 ? Post by ThumperPaul on 05/27/25 at 18:03:45 So if the 28.3mm steady bearing is correct, what bike might this fit? How can they try to sell this for a DR650 if 28.3mm is incorrect? Put it on a lathe and buzz it down? :o |
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Title: Re: Camshafts for ls650 ? Post by Dave on 05/28/25 at 03:54:43 0F332E362B3E290B3A2E375B0 wrote:
I don't know of any DR650 camshaft that has a 28.3mm steady rest.....the camshaft for the early 1992-1995 DR650 that we use has 25mm just like the Savage. The later bikes have a completely different camshaft with a decompression mechanism that won't fit the LS650. It is possible to machine the steady rest down if you have a lathe - but not many folks have that ability. The good news for DragBikeMike is that the Amazon purchase has a 30 day return policy - he can find out what it is (isn't) - then send it back!!! :) |
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Title: Re: Camshafts for ls650 ? Post by ThumperPaul on 05/28/25 at 05:17:38 True. No lathe laying around here. Very interested to hear DBM’s review and report! Aside from the 28.3mm question, I really wonder about the quality of materials. DBM is probably a metallurgist in addition to all his other skills and knowledge! |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 05/28/25 at 11:01:22 Not a metalurgist, just a gear-head, wrench-turnin fool. No sense getting worked up over these knock-off cams until we have the actual bird in hand. The dimension on their illustration could be a typo, or they might have a bunch of cams that they screwed up and rather than throw them away they are trying to unload on Amazon. Who knows, could be just about anything. Once I get the thing we will have plenty of answers. Regarding the material, I will try to ascertain hardness with some special files. That's about the best I will be able to do. This looks to be a very interesting project. |
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Title: Re: Camshafts for ls650 ? Post by FinnHammer on 06/01/25 at 12:46:32 It is a mad mad world. Just found one for fifty four bucks, couldn't resist buying it. |
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Title: Re: Camshafts for ls650 ? Post by ThumperPaul on 06/01/25 at 14:02:51 HAHA WOW! For $54, what the heck! https://www.amazon.com/RESV-Camshaft-DR650RSE-1990-1996-12711-12D00/dp/B0DQDQNMG1/ref=sr_1_1?crid=J0DM65KUPM3V&dib=eyJ2IjoiMSJ9._yA-H3ZmAisKUB2zLCS8RzYNzXjDUvqaQNRWEHrKdgJfk9jE8FyxAucXYVNwFGQGG997dZa0p6-2itH552zfMwfzWlokmD_VT_NLVTmvEFXsanTaExKPv9flQw1aKRd3rJKNl1C3CW8MFFKSTKnDhdbPJFwHuZTHzbNdzAtLQZUWpX74RKothE1jamc3bXD7TzBKyEJgilEPl2OQw19lQw_mMUFv4F8EDZZ2JIkJRlk.Zi-5X3MmAfwVc1MRagwC6EW03qDR5VQTVkPJQDndD-Y&dib_tag=se&keywords=camshaft+for+dr650&qid=1748811617&sprefix=camshaft+for+dr650%2Caps%2C135&sr=8-1 |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 06/01/25 at 14:55:02 I can’t wait to see what the results are for these cams may have found a cheap route for everyone for these hehehe :o |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 06/02/25 at 16:31:49 Ooooooof! I got robbed. >:( ;) :) ;D |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 06/02/25 at 16:56:24 Did you get it yet ?? |
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Title: Re: Camshafts for ls650 ? Post by ThumperPaul on 06/04/25 at 13:26:26 5B5D522E2C2B2F1F0 wrote:
What happened, Mike? Amazon isn’t allowed to rip ya off! |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 06/06/25 at 06:30:24 4F49463A383F3B0B0 wrote:
We so need an update …. |
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Title: Re: Camshafts for ls650 ? Post by Dave on 06/06/25 at 06:41:32 686E611D1F181C2C0 wrote:
Patience Grasshopper. Shipping from China takes a while. |
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Title: Re: Camshafts for ls650 ? Post by ThumperPaul on 06/06/25 at 06:46:05 32090413020E151308000D12610 wrote:
Shorter trip to Hawaii, but it probably has to go to Los Angeles first and then back across the Pacific to Mike. :-? Patience Grasshopper. Shipping from China takes a while.[/quote] |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 06/06/25 at 09:20:28 My bad I could have sworn it said June 1 before lol |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 06/06/25 at 16:42:07 The cam shipped a few days ago. The shipping estimate is between 6/13 and 7/1. It will be a while before I have the cam in hand. We will know more soon. |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 06/10/25 at 22:32:17 I received the cam. Excellent condition. Looks to be good quality. Unfortunately, it's not a DR650 cam. I was hoping that the lift and timing would be in accordance with Suzuki specs. If that was the case, we could probably machine the steady bearing journal to the correct size. But the lobe lift is way under spec, and as we suspected, the steady bearing is grossly oversize. Since the lift is under spec, no sense wasting time checking the valve timing. Chinese cam on left, OEM DR650 cam on right. |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 06/10/25 at 22:40:53 Lobe lift on the stock OEM DR650 cam is .248" int/.260" exh. Lobe lift on the stock OEM LS650 cam is .237" int/.247" exh. Lobe lift on the Chinese cam is .195" int/.197" exh. The steady bearing journal is .982" on the OEM cams and 1.114" on the Chinese cam. Too bad for us. There are slight variations in the lobe width, but they don't appear to be a problem. It would probably work OK if it weren't for the oversize journal and anemic lift. :'( :'( :'( |
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Title: Re: Camshafts for ls650 ? Post by Dave on 06/11/25 at 03:27:39 Weird that this stuff can be sold to the world with claims of being something that it isn't. "Looks like it is just another case of internet "cammed spam"! >:( Thanks for checking it out - now go hit the "return" button on Amazon. |
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Title: Re: Camshafts for ls650 ? Post by zevenenergie on 06/11/25 at 08:01:20 I saw the same ad on aliexpress: https://nl.aliexpress.com/item/1005008084357968.html?acnt=272-267-0231&aff_platform=google&aff_short_key=UneMJZVf&albag=&albagn=888888&albbt=Google_7_shopping&albch=shopping&albcp=20730513328&ds_e_adid=&ds_e_device=c&ds_e_matchtype=&ds_e_network=x&ds_e_product_channel=online&ds_e_product_country=NL&ds_e_product_group_id=&ds_e_pr oduct_id=nl1005008084357968&ds_e_product_language=nl&ds_e_product_merchant_id=710731876&ds_e_product_store_id=&ds_url_v=2&gad_campaignid=20726902985&isSmbAutoCall=false&i sdl=y&mtctp=&needSmbHouyi=false&pdp_npi=4%40dis%21EUR%2146.39%2146.39%21%21%21%21%21%40%2112000043616617930%21ppc%21%21%21&plac=&slnk=&src=google&src=google#nav-review There is also a photo with dimensions. Below are a number of reactions from people who ordered it. I think it would be better not to modify it and use it. Reviews: The camshaft looks good, needs some machining, but I am convinced it will be fine. Lower cam lobes mean lower power. cam lift IS less than original Suzuki part up to 90 95 re and RSE model. It will reduce hp.... Very bad, put this in my engine and turned the engine over by hand and the cam broke. I bought a new Suzuki part and it worked fine so this was very port quality |
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Title: Re: Camshafts for ls650 ? Post by FinnHammer on 06/11/25 at 09:16:53 I got mine today also, and can verify Mikes observations, plus that on the one I received, the cam lobes are offset 2mm axially towards the cam sprocket. Probably fine quality metallurgically, but dimentionally: A royal piece of junk. Cheers, Finn Hammer |
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Title: Re: Camshafts for ls650 ? Post by Peter Fonda on 06/11/25 at 16:08:18 Booooooo [ch128078][ch127996] make sure you leave a review there on Amazon so others don’t buy it and expect it to work and such. But that sucks that it won’t work or isn’t even the right one they’re advertising |
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Title: Re: Camshafts for ls650 ? Post by Dave on 06/11/25 at 16:57:57 7A6576656E656E6572676965000 wrote:
Wouldn't surprise me that he didn't know the steady bearing was too big. I am surprised he didn't notice the cam not fitting in the head properly....I would suspect the cam broke when he tightened the head cover and the bearings bent the cam....as the right side would not fit down into the steady bearing properly. |
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Title: Re: Camshafts for ls650 ? Post by zevenenergie on 06/12/25 at 00:45:54 I hadn't thought that far. But that also means the camshaft is cast instead of drop forged. Or is the original also cast? |
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Title: Re: Camshafts for ls650 ? Post by DragBikeMike on 06/12/25 at 00:59:04 Dave, no way anyone would try to install the head cover. The cam just plain won't go in the head. It's grossly skewed. Zevenenergie, the OEM cams are cast. I assume they flame harden after grinding. As I previously mentioned, the quality of the Chinese cam looks good. The casting looks good and the machining looks good. I think it's a cam for some other engine, possibly a DR250. They did a nice job on it, it's just not for a DR650. |
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