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Old 07-20-2004, 01:25 PM   #1
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Default Sirio .21 Kanai #1 Edition

Whats good and whats bad about this engine!
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Old 07-21-2004, 02:06 AM   #2
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It screams! It puts out a lot of usable power and the stock carb is actually pretty good. Just be careful with break-in and it will last a while as well.

It's a pretty dialed engine.
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Old 07-21-2004, 08:38 AM   #3
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Thanks Aaron, My Kanai #1 likes to run at around 240* if I richen it to cool it down I lose power! just to rich and leeks fuel at the nose bearing. is 240* Ok? I.m racing in Vegas and its about 105*
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Old 07-21-2004, 08:42 AM   #4
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Ya that seems about right for temp, mine ran 220 this weekend and didnt have enough top end, the motor is strong like Aaron says. Thats unusual that it leaks fuel like that though, havent haad that happen.
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Old 07-21-2004, 09:12 AM   #5
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it is normal for the engine to leak a bit of fuel thru the front bearing. Nothing to worry about.
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Old 07-21-2004, 01:55 PM   #6
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You really shouldn't have any fuel leaking from anywhere. Check the bearing and make sure it's ok. OFNA makes a tool specifically for pulling bearings out of .21 engines.

It is ok to run this engine above 220. The common misconception that anything over 200 will damage the motor is an old wives' tale. As long as you keep it under 300, and you return the piston to BDC before letting it cool, you will be fine.
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Old 07-21-2004, 04:42 PM   #7
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Thanks! I think I'll change the nose bearing, the seal may be going out. cant hurt!
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Old 07-21-2004, 05:25 PM   #8
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go ahead and change it if u so desire...

the front bearing seal is only meant to keep dirt out of the bearing.

The seal is created while the engine is running by the spin action of the crankshaft and the fuel itself.
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Old 07-21-2004, 08:09 PM   #9
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or to renove the bearings dump the engine wit everything removed in boiling water for a while

then hammer the bearings out wit a plastic hammer or somethin
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Old 07-21-2004, 08:26 PM   #10
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I use a heat gun it works great! . I have a Bearing removel & instillation tool, but the bearing seems to be in good cond.
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Old 07-22-2004, 02:04 AM   #11
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I won't put my engine anywhere near water..your best bet is to use a heat gun, like speed racer said.

Most engine bearings are simply metal-shielded and don't have seals. Some bearings simply fit better than others, both inside the case and around the crank.
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Old 07-24-2004, 11:20 AM   #12
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Anyone know the base settings for the top , bottom & mid-range?
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Old 07-25-2004, 01:07 PM   #13
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The basic carb settings, I cant find them anywhere....
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Old 07-25-2004, 02:50 PM   #14
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I will talk to Adam about carb settings tonight (if I remember).

Adam ran his Kanai Evo II this weekend...and it is unbelieveable. Totally ballistic, with TONS of bottom-end pop. After a few runs to get it broken in and tuned up, he had one of the fastest buggies on the track.
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Old 07-25-2004, 04:49 PM   #15
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When is the new sirio coming out?
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