01 SRX running like crap?

D

donkeypunch

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My buddies 01 SRX has ran good all year until we started diagnosing a vibration/hum issue. We jacked the *** end up pretty high (higher than what a stand would lift it) and messed around with the bogies and such. We did start the sled with it like this to watch the track spin to see if anything didn't look right.

We took care of the culprit bogies, loaded up and went to the lake for a test run. The sled won't idle, it dies as soon as you let out of the throttle and it has very very little power. All 3 cylinders are firing. Is it possible we flooded the snot out of the sled? I think it's too coincidental that the sled ran fine earlier in the day before this happened.
 
Yeah after it ran like garbage we put in some new plugs... made no difference.

It likely had a half tank of gas....
 
maybe it all boils down to what kind of fuel there is out there now a days..that could be the common denominator in all this happening to the sleds.
 
take the pipe off and remove the gaz in the base ...make sure not to run the engine this way if its full of gaz .....dangerous to bend a rod
 
What did the first set of plugs look like when you pulled them? Then, what did the next set look like? Sled may have been firing on all three when the throttle is applied... my guess is that you have a "booger" in one of the carbs so that it is running on two. I just had this happen last week. When sled is on choke and idling and or close to that... feel the exhausts by the manifold/PV valves. I would bet that one of them is missing... just shootin from the hip w/o being there yo! Good luck.
 
The plugs were wet, but we let the sled die rather than hit the kill switch...so I'm sure fuel was hitting the plug.

We are going to clean the carbs tonight, but I just feel it's too coincidental...
 
onewickedr1 said:
What did the first set of plugs look like when you pulled them? Then, what did the next set look like? Sled may have been firing on all three when the throttle is applied... my guess is that you have a "booger" in one of the carbs so that it is running on two. I just had this happen last week. When sled is on choke and idling and or close to that... feel the exhausts by the manifold/PV valves. I would bet that one of them is missing... just shootin from the hip w/o being there yo! Good luck.
Click to expand...

All the exhaust pipes get warm when running. The sled idles now and sounds a little better, but it's still not right - it's still only idling around 1000rpm.

Took the carbs apart and cleaned them, they are spotless. However, the powervalves were covered in carbon MUD. Looking down into the spark plug hole, the top of the pistons are also covered in carbon, I'm assuming this all happened when we had the back of the sled high up in the air?

Still have no idea what to do....

Sorry didn't see MODSRX's post.... I will go pull the pipes off now!!
 
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Pull pipes and plugs and pull over engine several times,, if there is to much of anything in there you will see it being blown out........
 
Idles good and runs good on a stand!! Phew....this one had me concerned. Note to self - never jack *** end so incredibly high without lifting the front end some too.
 
Ran the sled tonight, runs like garbage again. Runs and sounds exactly like it did before, however nasty black sludge is literally dripping out from the powervalves, not from the base of the powervalve, it looks like the end piece is where it's dripping from.

Really confuzzled now. Suggestions?
 
Power valves in upside down? Valve pull thru or stuck valves?
Plugged exhaust silencer?
CDI?...you wouldn't have the only SRX with a CDI issue this year!

The fact that you are getting so much leakage out orf the power valve housings tell me you have something restricting flow out of the exhaust like upside down valves, stuck valves, or blocked exhaust silencer.

JM.02c
 
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Will have to check, I let my buddy do the powervalves so I'm not sure how he put them back in.

How should they be in there?
 
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