Srv 540 40mm round slide. Spark plugs

Srv560

Srv560

New member
Joined
Mar 22, 2015
Messages
216
Location
Lake barrington IL
Hi, I have notice I am getting more oil on my pto side then the other. Is that normal. It has the single intake and I don't think there's nothin I can do if so let me no. Thanks.


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I don't remember anymore I pre mix. does it have 2 oil lines, one to each cyl or a single that injects somewhere up by the carb? If two lines swap from side to side and see if the problem follows.
Are you sure its fouled by excessive oil or could it be a weak spark or bad compression on that side causing it to misfire or not burn completely leaving the plug looking bad?
 
I was talking with throttle junkie a few days ago Bob . My tack cable is leaking a little but it leak last year and I didn't have this problem. Switch lines the same thing happens with new set of plugs ( 3rd set ) pto side a lot of oil on plug and other side is ok. The motor runs good. This one stumps me.
c40b15a127ce8c6b30694cbb71042c4e.jpg
i ran a lot of oil in the gas tank last year. Since it was just rebuilt. Around 445 miles on it.
356974e2434b27d1e95a656b56d627fb.jpg



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I'd actually be more interested in looking at the mag side which you think is lean. I believe you de carbon-ed the pistons and head when you had it apart this summer?? Then you told me you were testing in a field last weekend?? For the 60-70* temps, I feel the PTO picture that you have up looks like its not too far off tune, a little rich, but what I would consider most likely ok once temps cool down...... but make sure you keep checking the plugs until you have run it enough to feel confident your jetting is spot on.
 
Ya I think your are right. I was just thinking when I took the heads off I should of bought some of that gold gasket spray. But the head gaskets are pretty new. I have to fix that leakie rpm cable. I think you said there's a oring in there?i called Dale at the salvage yard. I was still looking for a EGT gauge. He has a bunch of probes but no gauges. Thanks for the help.


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You need a seal and most likely a gasket to fix your oil leak. Seal is part number 93104-06033-00 and the gasket is 821-17818-02-00. Both pieces shouldnt set you back more than $10 or so. If the price is right, pick up the probes if he can prove they still work. The guages come up for sale once in while used.
 
Gee guys, pick a night, bring it up to the snowmobile USA show here next weekend, enough beer and we should be able to sneak it out on the Milw Mile for a test lap or two. I'll be in the Derby booth all weekend.
 
Thanks I will order the parts tomorrow. I love to take it up there but I just had neck surgery last wensday.


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