Valve clearances - race bike

Haydn · Post by **Haydn** » Sat Sep 28, 2013 1:50 pm

HRC clearances are looser. IN = 0.15-0.20 EX = 0.25-0.30

StrayAlien · Post by **StrayAlien** » Sun Sep 29, 2013 8:59 am

Odd. My translated HRC manual says IN "0.15/0.02" (I assume the 0.02 is saying 0.13-0.17) and the EX as "0.20/0.002".

StrayAlien · Post by **StrayAlien** » Sun Sep 29, 2013 9:02 am

Thanks,

Hey Magg, the Precision Shims Melbourne thing is a good tip. They sell 7.50mm shims, but I am guessing that is good enough replacement for 7.48mm (?).

Thanks again.

Yakama · Post by **Yakama** » Sun Sep 29, 2013 9:12 am

Think Haydn is quoting NC35 HRC manual specs, albeit wrongly. The NC35 HRC manual has clearances as In 0.20 Ex 0.30

Dont think the SS/SP HRC manual for the NC30 quotes clearances.

magg · Post by **magg** » Sun Sep 29, 2013 9:36 am

Invoice had them as 7.50mm diameter but they seem to work ok in my engine. You could call them to check, cannot remember if I did or not. Also my untranslated copy of the HRC '90 VFR400 F3 TT Kit manual says IN: 0.15+/-0.02 and EX: 0.20+/-0.02

Yamaka thenks for confirming my earlier comments, only F3 TT kit manual lists non std cam and non standard clearances.

StrayAlien · Post by **StrayAlien** » Mon Sep 30, 2013 4:02 am

Thanks magg. I contacted Precision Shims. They charge $5 a shim and Honda is $6. So I went for Honda ones.

magg · Post by **magg** » Mon Sep 30, 2013 4:46 am

No problem, prices must have changed or Honda dealers in Sydney are bigger robbers.

Valve clearances - race bike

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