|
|
| High Performance Bicycle Engine Tips We all want our bicycle engines to push our bikes faster. Get exclusive engine modification tips and suggestions from us. |
 |
|

06-14-2008, 09:24 AM
|
 |
Master Bike Builder & Forum Sponsor
|
|
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,282
|
|
Got my quart of castor Oil!
I plan on blending up some of my own oils. Just for fun, experimentation and power in my 67cc street eater.
If say I mix the castor oil with Amsoil Saber or Dominator, what percent should I use? I mixed some castor with Saber Thursday in clear bottles at 10% and 20% and nothing weird has happened, no separation or anything. I will do the same with Dominator.
I'm out of gasoline and my leetle tank is low, so time to trudge down the hill.
|

06-14-2008, 10:47 AM
|
|
Motorized Bicycle Newbie
|
|
Join Date: Jan 2008
Posts: 18
|
|
Re: Got my quart of castor Oil!
Love the stuff! Hence my username...
You can run the stuff pure, or blend it.
4 oz oil in 1 gallon of gas = a 32:1 mix. I use a "fat" 4 ozs per gallon to achieve approx 30:1 mix.
The recommended mix, however, for our air-cooled two-stroke "Happy Time" (whatever happened to that guy Augi?) bicycle engines is 25:1 but since I believe that commercially-availabe, present-day premix two-stroke oils are of a higher quality than what was around in and when these Chinese engines were first manufactured, I use the slightly leaner mix.
I've ridden my motored at least 1000 miles in the last 6 months and it runs almost flawlessly. Then again, they always run *****in' right before they blow up, don't they? It's been running crisp for at least three months now!
I typically ride a 20 mile loop and have been using a castor-blended premix racing oil called Castor927. I've become addicted to the scent of the stuff! I buy it from my local Suzuki dealer.
Last edited by Bean Oil; 06-14-2008 at 10:49 AM.
|

06-14-2008, 11:13 AM
|
 |
Master Bike Builder & Forum Sponsor
|
|
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,282
|
|
Re: Got my quart of castor Oil!
Maybe I'll make a 50:50 mix of Dominator:castor. I've been running Dominator at about 30:1 as well.....I must admit it's about perfect, so dunno if I'll notice the castor....other than the smell.
|

06-14-2008, 02:57 PM
|
 |
Master Bike Builder & Forum Sponsor
|
|
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,282
|
|
Re: Got my quart of castor Oil!
I drained the remaining pint of fuel out of the tank and dumped it in the mower.
I made a 50:50 mix of Dominator:castor, and dumped in 4.25 oz to a perfect gallon of fresh 87 octane. Mixed very well. Started easy. Smoked just the usual amount - but that's just the fuel in bowl. Went for a ride - at first it smelled REALLY funky. Kinda like burned rubber....I'm sure it's just the old oil gooze being consumed and the pipe sealant junk burning off, also I had adjusted my exhaust again. Now smells pleasant and goes fine......the only thing I noticed, it seemed to take a tad longer to warm up to full power, but not a huge problem. Going down the block it hesitated slightly, did a couple jerkies and power just eased on - once warm, full usual power. I'll need to explore this more.
Did some 1st gear grunt laps in the back yard....seems to have even more low end, if that's even possible. Just think when I lower the gear down....from a 10 to a 9 or 8!
Last edited by Pablo; 06-14-2008 at 03:15 PM.
Reason: grammar is not even English
|

06-14-2008, 08:51 PM
|
|
Banned
|
|
Join Date: Mar 2008
Posts: 138
|
|
Re: Got my quart of castor Oil!
Pablo,
If you are going to do a 50:50 ratio, I highly recommend 3 oz total oil per gallon or you risk a lot of varnish build up on the engine.
Castor's almost magical properties are complement synthetic oil very well and in only small doses. More is not necessarily better. 1 oz castor mixed with 3 oz of Amsoil per gallon would be PERFECT and make less of a mess on the plug and exhaust tip.
The use of roller bearings really negates the need for a rich oil mixture and I'll even step out on a limp and say that 50:1 ratio with AMSOIL would be ok provided there is no risk of overheating the enigne. Castor really shines in temperatures that would cook any other conventional and nonconventional oil because it forms a dry film lubricant when it "cooks off".
I love the smell of burning the bean its something I picked up from model airplane flying....
Thanks for the posting and let us know how it goes. BTW, castor is compatible with almost all oils. It has compatibility issues in fuels that contain a high level of nitromethane.
BTW, I wish AMSOIL made a castor blended oil like other brands.
Last edited by Skyliner70cc; 06-14-2008 at 08:53 PM.
|

06-15-2008, 02:10 AM
|
 |
Master Bike Builder & Forum Sponsor
|
|
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,282
|
|
Re: Got my quart of castor Oil!
OK I'll be watching it......I figure one tank shouldn't kill me!! (famous last words)
|

06-15-2008, 12:10 PM
|
 |
Master Bike Builder & Forum Sponsor
|
|
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,282
|
|
Re: Got my quart of castor Oil!
Yeah it's an oily mix - I accidentally left my fuel valve on...and the carb dripped a bit on the smooth concrete.....the fuel evaporated....the mix residue was very nice and oily, not sticky.
I'll pop the head off in 50 miles or so.
|

11-09-2008, 10:35 AM
|
 |
Master Bike Builder & Forum Sponsor
|
|
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,282
|
|
Re: Got my quart of castor Oil!
Yeah baby! Still burning it. Just for the smell 
|

11-09-2008, 12:50 PM
|
 |
Custom MB Buiilder
|
|
Join Date: May 2008
Location: Houston, Texas
Posts: 1,237
|
|
Re: Got my quart of castor Oil!
The old people here will remember a hobby called "slot cars" we used to mix STP oil treatment & Castor oil and put it on our rear tires for traction. Sigh..
__________________
Only Bikers know why dogs love to stick their heads out of car windows,
|

12-13-2008, 12:08 PM
|
 |
Motorized Bicycle Newbie
|
|
Join Date: Dec 2008
Location: Central, Illinois
Posts: 13
|
|
Re: Got my quart of castor Oil!
Where did you find Castor oil? Is it Castrol R? I can't find that stuff anywhere. Someone said they sell it on the east coast, but I can't find it in my Google searches. I remember my first experiences with auto racing, back in the sixties, that great smell that I associate with those youthful days long gone! You don't mean the castor oil kids always frowned at in the old B&W movies do you? It is a soybean product, I'm quite sure.
|
| Thread Tools |
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -5. The time now is 12:03 AM.
|
|
|