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09-10-20, 12:23 PM | #1 |
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Valve clearances at 30k miles
AL7 just back from 30k service - no valve adjustment necessary all "well within spec" to quote mechanic.
I had the chain and sproclets replaced too, not because they were worn (they weren't) but as precautionary step. What's the life of a chain? I normally use Castrol Power synthetic oil but the dealer uses semi-synth, so I requested synthetic and they used Silkolene. It may be imagination but it has improved an already brilliant gearbox.
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2016 SV650AL7 2023 GSX-8S |
09-10-20, 12:56 PM | #2 |
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Re: Valve clearances at 30k miles
I wouldnt mind betting that youre a 'low rev' rider? Valve clearance wear seems to be proportional to how high the engine is revved which makes sense...
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09-10-20, 01:02 PM | #3 | |
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Re: Valve clearances at 30k miles
Quote:
Is that the original chain you've just changed at 30k? If so that's very impressive longevity unless you are using a chain oiler.
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2018 SV650AL8 2001 KTM 640 Duke2 2015 KTM 390 Duke |
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09-10-20, 01:39 PM | #4 |
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Re: Valve clearances at 30k miles
you would win, it's rare for me to exceed 7k rpm, I take it near red line occasionally to ensure it will still reach it cleanly. I used the revs more when I was running it in than I do now.
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2016 SV650AL7 2023 GSX-8S |
09-10-20, 02:15 PM | #5 | |
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Re: Valve clearances at 30k miles
Quote:
I found checking the clearances easy on the Gen 3, I didn't need to remove the tank or radiator. Getting the rear cam cover back in place was a bit fiddly, and you have to be careful not to tear the gaskets when removing the covers, but apart from that it was simple. |
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09-10-20, 02:32 PM | #6 | |
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Re: Valve clearances at 30k miles
Quote:
Seeker, not sure if you missed my query about your chain?
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09-10-20, 02:48 PM | #7 | |
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Re: Valve clearances at 30k miles
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If I pulled the old chain at the rear sprocket I could see a small movement away from the teeth but less than 1/4 of the teeth height. It would have lasted longer with regard to stretch but I was unsure how long they last before a catastrophic failure since I've never put so many miles on one. I've only adjusted the chain 4 times in 4 years.
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09-10-20, 05:18 PM | #8 |
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Re: Valve clearances at 30k miles
If you are an "easy rider" and keep it smooth the chain will last well over 30000 miles as long as it is never allowed to dry out and thus damage the seals. Good quality OE sprockets are up to that as well.
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09-10-20, 08:12 PM | #9 |
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Re: Valve clearances at 30k miles
A bit more these days but wasn't back in the nineties when I did alot of my riding on chain drive bikes (before getting a shaft drive BM). Used to think 12k was decent life for a (non O.E.) chain back then. Fitting a Scottoiler on my TDM850 suddenly made 30k chain life seem a realistic aspiration, I remember chain adjustments went from circa 600 miles to circa 2000 miles with the oiler fitted. Most of my riding since 2004 has been on singles, which of course tend to kill a chain relatively quickly however you ride them.
Have passed 2000 miles on the SV without needing chain adjustment (bought a Tutoro oiler, but it's still sat on my garage shelf) which has been a very pleasant surprise.
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2018 SV650AL8 2001 KTM 640 Duke2 2015 KTM 390 Duke Last edited by Bike27; 09-10-20 at 08:16 PM. |
10-10-20, 10:26 AM | #10 |
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Re: Valve clearances at 30k miles
May be your imagination, may also be the new chain / sprox
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