Im not sure if this has been covered but I felt that I should ask before i take out and really run it. I got a 2001 with 4120 miles and was wondering are there any motorcycle safe oil detergents to run through it to dislodge and dissolve any sludge that may be in there prior to a proper oil change so that I can keep track of it. And is there a special procedure to take off the carb and clean it (the last 6 years of the previous owner bike has been used mostly for short trips and I know atleast with a car that leads to carbon deposits) and anything else i need to account for and to assume to be dirty asides the oil and air filter and sparkplug? I want to make sure i get as much out of that 652 as possible.

The best way to remove "sludge" would be to do the oil change while the oil is still hot.

There are additives on the market, but for the most part they are simply kerosine. If the oil was changed with any kind of frequency it shouldn't have any sludge with only 4,000 miles.

Nothing special with removing the carb...other then making sure you don't loose any parts. I do usually throw away the brass phillips-head screws and replace them with cap head screws. It will make future servicing much easier.

spark plug , it's virtually new. Dust , grit, junk, collect down where it sits. Clean , blow, get the crud out before you pull the plug, but for now, the less you touch before getting it running the better.
Sludge? No.. The inside is new, it's had one oil change. I would be more concerned about the piston and cylinder wall. If you have not started it, good. I'd pull the plug and oil the cylinder and manually roll the motor over, depending on how long it's been sitting..
It's a wet clutch. Wrong oils are trouble. The cheapest oil that will keep this antique design happy is Rotella T 15_40. About $13.00 a gallon, or, you can spend more. One of our guys has over 100,000 miles on his. Ask him what he does.. I don't know...
If you discover an oil leak up high on the engine and you take it to a mechanic,,  it's not the head gasket, I don't care if he is Don Garlits dad, it's NOT the head gasket.

My 3 cents. (Inflation)

If it is running fine.
Get it hot, change the oil, Use Rotilla, add Red-line.
 (See Teck Section)
Then drain the gas, and put in good gas.
Gas that does NOT have Water in it.
(Non-Oxy) gas.
You don't need a high octane, just NO WATER in the gas.

If you can't get, 'Non-Oxy' gas, make sure you put a GOOD stabilizer in the gas.  (Perhaps Stabill Marine) follow instructions.

Then it will be the Raptor Petcock, Cam Chain Adjuster, Tightening bolts,
(Not To much)  Good rubber.  Then 'tinker/add/change', as you see fit.

MnSpring wrote on 04/17/15 at 15:04:42:



Lol inflation love it. And it is running fine. I rode it 40 miles back home. I was just concerned as the oil in it i was told is around a year old (probably a lie) and its black as coal. And i cant get non oxygas in my area if not the whole of w.v. its all 10% ethanol unless its like 93 octane i believe. But i wanted to make sure as im about to begin using it for a 80 mile daily work commute

Great. And another question. Is the Redline additive a must have with Rotella t6? I just bought some an hour ago. And wanted to make sure prior to changing it with just straight rotella if it will messup the clutch.

So its an absolute required thing to run off of rotella?

Kris01 wrote on 04/17/15 at 20:24:12:



i tried searching for that and came up empty handed. I blame my phone.