Mixing gas direct in tank **help** - Snowmobile World : Your #1 Snowmobile Forum

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post #1 of 2 (permalink) Old 02-11-2017, 12:06 AM Thread Starter
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Mixing gas direct in tank **help**

I have a 99 rmk 600. I want to mix the gas and 2 stroke direct in the tank. The oil reservoir is totally drained. Is it a must to put a block in the oil injector or am I ok mixing direct into the tank? I assume I am good to go, unless someone out there can advise me to absolutely not do this!
Thank you!!!!! I am riding in about 12 hours.
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post #2 of 2 (permalink) Old 02-12-2017, 01:49 AM
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Location: Oregon
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The big block 600 has a line on each end of the crank that lubricates the outer crank bearing. If you go to pre-mix, those lines won't be putting any oil to that bearing. It will still get some from the premix, but not near as much as the direct line.

When you premix, you mix at one ratio, probably 50:1. That ratio is very rich at idle. The oil pump will change the ratio from maybe 150:1 at idle to as much as 32:1 at wide open throttle, so your oil consumption is greater when there's higher demand.

I'd keep the pump.

2007 RMK 700, 2008 RMK 600, 1995 AC Prowler 2-up, 1980? AC Cheetah
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