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Offline Sweep Rider

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What Oil ??
« on: June 24, 2012, 08:57:39 pm »
I've just had my first outing with my Rm 370A at pratice yesterday at Bedrock (Biddaddabah) and all went well.
Not as scary a power band as every person I've spoke to in the past 2 years whilst I was restoring the bike. I was surprised with how much it pulled down low in the rev range.

The manual says SAE 20-40 however am having trouble finding that grade.
The engine has had a complete rebuid from top end to bottom end and gearbox.
What is everyone using in the pre '78 bikes??
The manual says NOT to us ATF.
Cheers Terry ;D
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1974 TM 250, 1974 XL 250 Moto Sport, 1976 RM 370A, 1976 RM 125A, 1977 IT 250D, 1978 SP 370, 1984 XR 200R

Offline Davey Crocket

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Re: What Oil ??
« Reply #1 on: June 24, 2012, 10:14:01 pm »
Go to any bike shop and buy 10w30 gear oil of any reputable brand...any good 2 stoke gearbox oil will be fine.
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Offline EML

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Re: What Oil ??
« Reply #2 on: June 25, 2012, 09:08:53 am »
Penrite do a full synthetic  MC-2ST or semi-synthetic MC-SST specifically for motorcycles and listed to suit Suzuki models.
Pretty sure they do a 20W40 as well if you want to be perdantic.
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Offline Lozza

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Re: What Oil ??
« Reply #3 on: June 25, 2012, 10:48:59 am »
Castrol VMX80 ;)
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Jesus only loves two strokes

Offline Canam370

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Re: What Oil ??
« Reply #4 on: June 25, 2012, 11:45:38 am »
Motul Transoil Expert
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oldfart

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Re: What Oil ??
« Reply #5 on: June 25, 2012, 03:00:39 pm »
Super cheap sell it in either 1 litre bottles ...MTX  75/80       same shelf as 2 / stroke oil  ;)
                               Or     4 litre bottles ...VMX M  75 /85     
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Offline EML

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Re: What Oil ??
« Reply #6 on: June 25, 2012, 03:07:05 pm »
IF you use the heavier VMX80 or even a 75/80 you will loose HP. It's better to use a lighter weight oil and change it more often.
In the Rally Gemini I used one oil-a 30w and it went in both engine and box-but was changed every event, using the adage that oil is cheaper than rebuilds.
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