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Showing results for tags 'revs'.
Found 4 results
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Well I got my 93 up running with a carb rebuild, but I noticed the revs slow to come back down, so I figure a vacuum leak. I sprayed carb cleaner around the boots that attach to the head, and sure enough the revs jump up on all four cylinders. I see there is an o-ring in the boot assembly. My question is, can you usually get by with just an o-ring change, or do the boots themselves routinely go bad? The bike has less than 19,000 miles on it, so it has spent lots of time sitting. Thanks.
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At Don's MD I was going to install Skydoc's upgrade kit, which as you may know, includes new clutch springs and a full friction plate to replace the factory 1/2 plate. Earl was talking me thru the job so I know it is done right. He suggested that my clutch plates were very near the end of their life so I replaced all of the friction plates, but kept the steel plates as they were not burnt or scored. I have since noticed that there is a loud noise that wasn't there before. It is much like a low pitched wind howl. It is loud enough that it is bothersome. It is at its worse when I am just poking along in 3rd or 4th around 3000 rpm but is still noticable at 4000 and above. It doesn't seem anywhere as loud in 1st or 2nd, even at those rpms. I know these bikes like the higher revs, but with rev's come more noise and sometimes just humming along feels like the right thing to do in towns etc. Now just before I changed the clutch I also changed the oil to Shell Rotella 15/40, which makes it harder to determine which is the cause...the new clutch or the new oil??? Any ideas??
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OK so I got the ventrue 1200 standard on the road, Legally now. I ended up putting a set of Dunlop 404s on it...everything else was OK for the safety check. Could someone tell me again what pressure I should be running on the front and rear (no class)...and in the tires. I'm about 210 lbs. Its got a bad backfire. Only when I gear down agressively or if I really rev it up and back off in a lower gear. It backfires almost every time about 4200 rpm. If I let the revs down gently, no backfire! but there is still some popping going on. There is a minor leak in the exhaust...just enough to give it a bit of a throaty sound...not bad at all (I don't like loud bikes unless it's a high performance rocket sled) I put a 1/2 can of Seafoam into it but it hasn't made any difference so far.I've only ridden about 1 1/2 hr since I put it in. I've tried to keep the revs up and did lots of hard accelleration to give it a good chance at cleaning everything out. So where do I look for causes?
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Trying to calculate the engine rpm of a bike at a given speed. Constants I know are, primary drive ratio(2.184), 5th gear ratio(.857od), final drive ratio(17/39=2.294), tire diameter(25.5=790 revs per mile). So, would it be as simple as 2.184x.857= 1.8716x2.294=4.293x 790(tire rev at 60 mph)=3391rpms?
