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Post by kevsypvs on Jul 6, 2013 18:20:12 GMT 1
hi all bit of a newbie on here and i have a 87 ypvs 350 lingering in my shed , its been there since 1992 and never run since , so im gonna rebuild it from a bare frame, was thinking of running on premix instead of having a pump and oil tank , anyone know what parts and whats involved in the conversion thanks
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phil38
Thrash Merchant
Posts: 426
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Post by phil38 on Jul 6, 2013 18:36:48 GMT 1
Much better to run autolube in my view. Premix is a hassle and you end up running much more oil at part throttle than is needed. This means you're more likely to clag up the engine. Also you'll need to reject the carbs to account for the oil in the fuel (bigger gets needed to keep the same air:fuel ratio).
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phil38
Thrash Merchant
Posts: 426
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Post by phil38 on Jul 6, 2013 18:37:21 GMT 1
Much better to run autolube in my view. Premix is a hassle and you end up running much more oil at part throttle than is needed. This means you're more likely to clag up the engine. Also you'll need to reject the carbs to account for the oil in the fuel (bigger gets needed to keep the same air:fuel ratio).
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phil38
Thrash Merchant
Posts: 426
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Post by phil38 on Jul 6, 2013 18:37:35 GMT 1
Much better to run autolube in my view. Premix is a hassle and you end up running much more oil at part throttle than is needed. This means you're more likely to clag up the engine. Also you'll need to reject the carbs to account for the oil in the fuel (bigger gets needed to keep the same air:fuel ratio).
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phil38
Thrash Merchant
Posts: 426
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Post by phil38 on Jul 6, 2013 18:38:13 GMT 1
Sorry, didn't mean to post that 3x!
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Post by steeley on Jul 6, 2013 18:55:48 GMT 1
run the pump mate ,get it serviced by arrow he is on here.
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Post by kevsypvs on Jul 6, 2013 20:15:58 GMT 1
ok thanks il keep the pump
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Post by stanlc7189 on Jul 6, 2013 20:29:35 GMT 1
Deffo run the pump on these bikes for fast road use. At high rpm on a closed throttle the engine will be getting naff all oil on premix. OK for race bikes as they are virtually full throttle most of the time. A correctly set up and maintained pump is the way to go, but there are plenty running premix because they fear pump failure and I can understand that. You can get pump blanking plates if you wish to convert, but I wold stick with the pump.
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Post by yardstikk on Jul 10, 2013 16:58:52 GMT 1
Sometimes better with premix if your motors tuned and you drive it hard..I like it because i can use 747 which smells ace..
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Post by arrow on Jul 10, 2013 17:44:21 GMT 1
Sometimes better with premix if your motors tuned and you drive it hard..I like it because i can use 747 which smells ace.. I've just developed a pump that kicks out an extra 12% oil at the 3/4~full bore setting for such purposes. |
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