Does anybodie know is there a safe way to turn the oil pump down. lets say you wanted to run a 100% syn good oil .is there a way to set pump so its at 40 or 50 -1? what is the pump set at 22mm ? 32-1 . any imput would be great.
THANKS
THANKS
I'd say stick to the 22mm. I know some people who run synthetic that turn it down to 20mm. Be careful though, because the tension on the cable is what holds the end of the cable on the oil pump arm. Somehow mine came off last season, after I replaced the pump. Maybe someone else could give you a "safe" gap to run with synthetic?
jimmie d
New member
I think you have it backwards the more the length the higher the ratio.
Jim
Jim
The larger the gap, the more oil your getting. 20mm would be slightly less oil than 22mm.
Is this on a Viper ? Vipers use little or no oil as it is.. I would say stick to stock setting.. I use a third the oil then my skidoo riding buddies. 
"IF" being the keyword, you run 100 percent synthetic oil such as amsoil interceptor, you can easily make the gap to 23mm and it will be just fine, the larger the gap the leaner the mixture, amsoil is such good oil you can run it leaner and have no ill effects. I would not recomend going any leaner then 23mm gap. Again this applys to 100 percent quality synthetic oils, not synthetic based which are nothing more then base petroleum with additives that sound better then they actually work!
There seems to be some differences in this post on which would give you a leaner mixture. It seems to me that the larger the gap the more oil you would be supplying to the motor. Can someone confirm this?
I just went out and checked the gap on my sled. I was wrong about the gap. The larger the gap the farther it lets the oil pump arm go down which equals less oil. So the 20mm gap would actually be way richer on oil than the 22mm gap. My bad guys, I was thinking that the larger the gap the shorter the cable.
jimmie d
New member
Hopefully nobody listened to you.
Jim
Jim
yamaholic22
Active member
Yes larger gap equals less oil. A 23 or 24mm gap will use much less oil than the stock 22mm setting if the pump is still good. As the pumps wear out they gradually use more and more oil until they go to full stroke all the time, this is quite common on the older 700 non-PV triples.
Yup
Just like you and suspensions, right?
Jim Drake said:
Just like you and suspensions, right?
I looked at my SRX the other night and it seems too me like increasing the gap would increase the amount of oil. As you increase the gap it pulls the lever on the oil pump forward and decreases the amount of cable showing. It seems like this would be increasing the amount of oil being supplied. Can someone explain as I may be missing something? I have mine apart right now and want to set it up right.
The gap is a measurement of the amount of cable showing when you pull it apart. The bigger the gap the farther the cable will let the pump arm down when you slide it back together.
I know what you're saying though, as I was thinking the same way before I looked at it.
I know what you're saying though, as I was thinking the same way before I looked at it.
Thanks. That makes sense now.
yamaholic22
Active member
yes a lot of people think the gap is the measure of threads showing on the adjuster or something, which is not true. It is actually the length of cable showing when the cable is pulled apart, seperating at the adjuster.
Mac
Member
Mixture setting
Does anyone know what Yamaha intented the mixture to be with the 22.5mm setting? What would 22.5mm, 23mm, 23.5, 24mm settings be for ratios 40/1, 50/1? Changing from Yamalube to Klotz should allow a leaner setting anyone with suggestions.
Does anyone know what Yamaha intented the mixture to be with the 22.5mm setting? What would 22.5mm, 23mm, 23.5, 24mm settings be for ratios 40/1, 50/1? Changing from Yamalube to Klotz should allow a leaner setting anyone with suggestions.
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yamaholic22
Active member
use your own judgement but with a good synthetic oil you can shoot for 150 miles to a quart without a problem. Clutching also greatly affects oil consumption because a more aggressive clutch setup will require less throttle to go down the trail so you will in turn use less oil at a given speed.
It would be nice to know what a 50/1 mix is in mm. in oil cable free play???
yamaholic22
Active member
it will be different for most machines because even the throttle cable setting will change the amount of oil used, and another huge factor in the oil consumption is clutching. An aggressive clutch setup will use much less oil because it requires less throttle pull to keep it at a given speed when compared to the stock setup, so it will in turn use less oil. Gas mileage also usually increases with a good clutch setup.
laketom
New member
Hi laketom here,just put on longer oil pump cable because of 3.5'' riser(rox).When you put a bigger gap on the adjustment, that pulls the lever on oil pump up to a higher position. The higher it's pulled the more oil is delivered. when throttle is back down,the oil lever is back to lowered position.It's hard to see, but if you take off your muffler off and look thru the side,under the carb you will see oil pump lever.Push down on throttle you will see lever go to higher position. More gas more oil.Hope that clears things up.