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Post by tom93gts on Jul 2, 2008 21:02:20 GMT -5
I finally pulled the plug out tonight for the first time in the year I have owned the RE5 and it was nasty! Gap was worn I am sure well past what it should be. I media blasted the plug, cleaned it up, and re-gapped it by hand to something that looked like my new plug. Why did I wait so long to bother?!?! Everybody seems to always be replacing plugs, was I in denial or something? The RE5 runs great now! Only a very small hesitation at about 5500rpm but nothing anywhere near what it was before and I was only able to get it to happen once in my test ride.
Eventually I think I will drill out that old plug and tap it for some modern plug. What's a common plug to use for this? I don't really want to spend nearly $100 for the adapter on ebay.
At any rate, check your spark plugs! ;D
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Post by SuzukiRE5 on Jul 3, 2008 0:45:07 GMT -5
Excellent Tom!! Glad to see it worked out for you. Someone on ebay sells the adaptor and plug. I don't remember which plug it is but I see the combo on ebay quite a lot. H2rtuner makes the adaptors also if I remember right. You might be able to get one from him and I am sure he also knows which plug works with the adaptor.
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Post by frankt on Jul 3, 2008 11:47:43 GMT -5
There are two types of adapters that are, or were recently, for sale on ebay. One is drilled for the same plug size you would use if you drilled out an old stock plug and a common plug for that size is: NGK CR9E. The second adapter is drilled for the plug used in the Mazda RX8 which is: NGK BUR9EQP. I believe the RX8 plug is unique to that car.
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Post by tom93gts on Jul 3, 2008 19:01:45 GMT -5
The RX8 plug is I believe about $30 if I remember right, so I dont think I will go that route. The CR9E is likely a better price. I will get one and try to modify my old plug once it goes out. Thanks for the numbers!
Turns out that running great thing was a false alarm. While cleaning the plug certainly helped things, my ultimate problem is likely the thermostat. Yesterday when it was 110 out it ran great because the re5 got up to operating temps and stayed there. This morning when it was much cooler, only about 90, I gut up on the highway and the temps dropped down well below half and the hesitation came back. I think my problem is the thermostat and the fuel mixture is all wrong when it starts running too cold. So now time to order some parts from Sam.
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Post by frankt on Jul 3, 2008 22:39:06 GMT -5
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Post by tom93gts on Jul 4, 2008 1:28:30 GMT -5
Damn, thats an awesome price! I pay about $6 for the non-platinum bur7eq and bur9eq plugs for my rx7 and REPU. I thought the platinums were more like $12 each, cool!
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Post by Jess on Jul 26, 2008 0:05:03 GMT -5
My position on plugs... I am not convinced that the ebay adapters are a good idea. I know there are guys that swear by them, but I just have a hard time believing that a plug that small can take the heat and not fail. I also have isssue with the design of the adapter. It sits down inside the motor and if it gets stuck....  Sam is currently attempting to get replacement plugs manufactured. I would imagine that the out of pocket costs are significant. Bottom line, I do every thing I can to support Sam by purchasing all my parts from him so that he has a reason to stay in buisness. Sam has NOS plugs. They are 35 bucks. For me this is a small price to pay. If your bike is set up properly a plug will last a good long time. Just my opinion... your mileage may vary. Best, Jess |
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Post by tom93gts on Jul 26, 2008 11:39:46 GMT -5
You know Jess, you are probably right. I have had the same plug for a year now plus however long it lasted the previous owners. The electrode is worn down a little bit but regapping was not a problem. I think I can get another year out of it plus I have a new plug still sitting around here that will last at least another 2 years. When I need another plug I will just get whatever Sam has.
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Post by h2rtuner on Aug 4, 2008 23:51:44 GMT -5
I drilled/tapped my old 18mm plug jacket to fit a GSXR dual neg electrode plug, works excellent. Same plug for the last 14 years, never fouls, doesn't leak, much less expensive for a plug (in fact, I remember using a used plug taken out during a tune up on that GSXR).
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Post by suzsmokeyallan on Aug 5, 2008 4:35:52 GMT -5
Tuner you did what i was thinking of doing, empty out the old plug of its innards and thread the inner hole to except a plug for the slightly smaller diameter in the shell.
Naturally you leave the hex or trim it down just enough so the new plugs washer sits at the correct height when everythings installed.
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Post by gttim on Aug 5, 2008 8:11:30 GMT -5
Will be interesting to see if there is enough room here for the both of you in the future....I see egos getting in the way in the future, strong personalities, experts and all  You all need to be easy going like me....  |
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Post by frankt on Aug 5, 2008 17:36:21 GMT -5
Jess,
I know Sam has been working on this replacement plug for a while, do you have any idea when it will be available for sale?
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Post by Jess on Aug 5, 2008 22:28:46 GMT -5
Frank, First, let me preface my comments by saying they are my perceptions I have tested several iterations of the experimental plug for Sam, for multiple thousands of miles and I can say that all perform as well if not better than the OEM plug. I imagine that there would be a significant capitol outlay to have plugs manufactured. Sam once told me that he talked with NGK about making a new run of the plugs... they replied sure... minimum order 10,000...  Let's see... 6300 bikes produced... Hmmm....  I am going to have a bit of a rant... I constantly get calls/email from guys wanting to know if there are parts that interchange with the Re5... My response is "Call Sam"... he has what you need. We are so incredibly fortunate to have a guy that has EVERY part for our bikes... IN STOCK. How many 30 plus year old bikes can say that? I have not yet seen a plug adaptor that does not have the possibilty of becoming stuck inside the motor... That will be a treat when it happens... Definately worth the 20 bucks I saved screwing around with plug adaptors and plugs not designed for the bike.  Also, just me... not sure that I would invest in a one time tool up and run of plugs when there are guys out there singing the praises of and selling plug adaptors... But Hey, I am not a buisness guy... Personally, I would much rather have a part that was purpose built for my machine than something cobbled together as an afterthought. I buy all of my parts from Sam... I would buy 50 plugs from him as soon as he got them reproduced... Rant off... Short answer Frank... I don't know... I hope soon. Best, Jess |
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Post by gttim on Aug 6, 2008 17:08:43 GMT -5
For those of you using the spark plug adapter with the "normal" plug, what gap setting are you gapping the plug at?
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Post by gttim on Aug 8, 2008 12:27:33 GMT -5
For those of you using the spark plug adapter with the "normal" plug, what gap setting are you gapping the plug at? BUMP |
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Let's see... 6300 bikes produced... Hmmm.... 
