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compression problem

I have a 1999 Suzuki Intruder 1500 LC with 70,000 miles on it.  Have kept the oil changed and well maintained since I bought it new in 2000.  Have noticed a little popping on deceleration lately.  Performed a compression test with the engine hot and found my front cylinder is running 140+ but rear cylinder is 122.  Took a trip on it a few weeks back and during the trip, it started backfiring a little at one time, and then seemed to have a light clicking when cold, but then seemed to straighten up.  A couple of times since, I noticed when I started it, only one cylinder ran for a few seconds and then the other cylinder kicked in.  Any suggestions?  Can you overhaul the top end, without changing the rod bearings?

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3 Comments

Do a leak down test. Read this first. http://www.gregsengine.com/cylinder-leakdown-testing.html

Then, you'll need this.
https://data2.manualslib.com/pdf5/101/10006/1000591-suzuki/vl1500.pdf?0f...

Yes, you can do a top end job.

Thank you. That helps.

I would try to adjust the valves first. You may just be too tight on your valve adjustment. It is way cheaper than a top end job easier too.

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