97 SX700 oil pump question

[gixxerdan]

Hi guys, new here and have been doing alot of reading up and this site is a treasure trove of information and has clarified many things. I apologize if I missed the answers I'm looking for in previous threads.

I recently pulled the motor(9500miles) from my sled to have mag side crank bearing replaced (seized). Ever since i dropped it back in the sled, I'm going through a tank of oil per tank of fuel. The pump has been set to spec (20mm on the cable) and I've pretty much determined from everything I've read here that my oil pump is defective and now running wide open as a failsafe for the motor....please feel free to correct me or suggest any other scenarios.

My question is this...the sled still runs decent, a bit boggy down low but if i keep the revs high enough, i hardly notice. Can i keep riding it this way until i have time/money to replace the pump?? I haven't fouled a plug yet (400miles) and the only drawback is having to carry oil and the cost associated with burning 2x the amount.

I thought of cancelling the oil pump and premixing but thankfully read here that my crank would starve for oil...Am I good to go for a few weeks here or do i need to park this thing until i fix the oil pump??

*oh also, is there a way to test or visualy inspect the pump to determine if it's defective?

 

[srx tuner]

good question s i m not sure but my buddies is doing the same thing, he has about 12000 km on it and he is useing way to much oil as well end we also checked the cable length. i hope someone could help us out.

 

[maxdlx]

try setting the gap in the cable to 23mm. But WATCH VERY COSE that it is using oil. If it is still using to much the pump is bad. Running that muchol can actually cause it to be lean, to much oil not enough gas, and cause it to burn down in really cold temps

 

[daman]

To answer you question yes but watch jetting like max said try leaning out pump 23-24mm fist and see how that works.

post back

 

[maxdlx]

did you happen to switch to syn oil sometimes or at least on my 700sx it ran through it like water through a sieve. i was as far out on the adjustment as I could get to get it right. Don't go all the way out if you are running syn, just let us know

 

[gixxerdan]

I've been running the same ol'Castrol mix oil since last year. So nothing has changed there. The other night i went all the way down to the pump to see if marks were un-aligned (only to figure out triples don't have alignment marks). Do you guys think a couple mm on the cable would cause 2.25 times the oil consumption???

When i removed the engine, i unscrewed the pump from the base (2 tiny phillips screws) and am now wondering if that o-ring got damaged or isn't seated properly.

Anyways i'm going to dig in there tonight ugh-ain as i have a loaner used pump from my local used parts guy. He says he's never heard of a pump going to full tilt upon failing and that there's "no way in hell my sled would run if all that oil was being burnt, wouldn't idle and would foul plugs".

If that oil was leaking, I would surely notice droppings of it somewhere i would think!

I will gladly share my findings and post here once i figure things out!

 

[maxdlx]

does it smoke like a coal burning locamotive

 

[gixxerdan]

does it smoke like a coal burning locamotive

Not really, only when cold-ish and pulling out of the garage. Doesn't seem to smoke excessively when hot and plugs are only "fairly dark". Sled runs pretty good actually.

 

[daman]

for one your local parts guy knows shit about Yamaha pumps tell him i said that, for two it doesn't cost anything to readjust, try that first that O ring has nothing to do with your problem here, if the pump is bad just look for a good used OEM one.

re adjust post back....

 

[gixxerdan]

for one your local parts guy knows shit about Yamaha pumps tell him i said that, for two it doesn't cost anything to readjust, try that first that O ring has nothing to do with your problem here, if the pump is bad just look for a good used OEM one.

re adjust post back....

Adjusting a nut and going for an hr ride (while checking plugs) sounds a hell alot better than spending the night under the hood after a day like today...i will give that a try first, i've read your posts and have confidence in your knowlege daman.

 

[cheapsx]

Just a thought but could you have a leak? When I did my rebuild I used an aftermarket gasket kit with new O-ring where oil pump goes into case. It was a little to fatand I ended up slightly cracking the pump (it still worked) but it slightly leaked out of the pump housing. I had to get another from the salvage shop. Dumb *** mistake on my part.

 

[gixxerdan]

Just a thought but could you have a leak? When I did my rebuild I used an aftermarket gasket kit with new O-ring where oil pump goes into case. It was a little to fatand I ended up slightly cracking the pump (it still worked) but it slightly leaked out of the pump housing. I had to get another from the salvage shop. Dumb *** mistake on my part.

Was it leaving drops of oil anywhere? When the engine was out i cleaned the engine bay with a toothbrush so it's spotless and i don't see a mess.

I'm now a little bit scared of a leak underneath in the line that feeds the crank, i will however adjust to 23mm and test.

 

[daman]

if nothing is seen under engine your golden,a leak in that line would show up for sure.

set idle
set tep
set pump

 

[cheapsx]

Mine showed a little oil under sled after a few days is how I figured it out. So if it looks dry you prob didnt make the mistake I made.

 

[gixxerdan]

Well i went and I backed the oil off to 23mm but all i could do tonight was go for a very short jaunt at only moderate throttle. When i checked the plugs they seemed to be a bit on the lean side for my liking...light light brown.

I also had a real good long look-see from every angle underneath the motor with a flashlight and see nothing but shine under there or under belly pan...just needed to confirm, no leak for sure.

Tomorrow night, i will head out for an hour or two and measure both fuel and oil consumed upon arrival. With a few spark plug checks along the way.

I have a good used oil pump sitting on my bench right now from that used parts guy. I haven't paid the $125 he wants for it yet but it's looking more and more like i will need to pop that one on. So....

-when them pumps fail, they run wide open?
-my sled will still idle and run somewhat normal with all that oil?
-one thing i haven't mentioned yet...fair bit of oil in airbox

 

[daman]

-when them pumps fail, they run wide open?yes!!!,most times
-my sled will still idle and run somewhat normal with all that oil?yes may be a little dogish and will smoke more then normal even after warmed up
-one thing i haven't mentioned yet...fair bit of oil in air box normal all triples do that it's called spit back,(fuel and oil mix)

......

 

[gixxerdan]

Here's what the plugs looked like adjusted to 20mm...2 of them are to me the perfect color and one is rich.

 

[xtc600]

600 triple

I've got a 600 triple that has always used about a quart per tank. I thought that was normal, but noted my buddies 700 didn't use half that. Tried readjusting the linkage to the minimum, didn't seem to make a difference. Seems as though it susing more now than ever. It does smoke a lot especially when cold. Any other ideas?

 

[daman]

I've got a 600 triple that has always used about a quart per tank. I thought that was normal, but noted my buddies 700 didn't use half that. Tried readjusting the linkage to the minimum, didn't seem to make a difference. Seems as though it susing more now than ever. It does smoke a lot especially when cold. Any other ideas?

did you adjust it the right way?

bigger gap = LESS oil.

you may want to start your own thread also if needed

 

[gixxerdan]

if nothing is seen under engine your golden,a leak in that line would show up for sure.

set idle
set tep
set pump

What is the second item here?...."tep"