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Search: Posts Made By: bob58o
Forum: Mini Bikes, Trikes, and Choppers 09-13-2019, 01:04 AM
Replies: 4
Views: 353
Posted By bob58o
^ I can’t take all this bad advice any more. ...

^ I can’t take all this bad advice any more.
#41 isn’t any stronger than #35.
Forum: Mini Bikes, Trikes, and Choppers 09-13-2019, 12:59 AM
Replies: 16
Views: 221
Posted By bob58o
Who is this guy? ^ Drilling jets is easy and...

Who is this guy? ^
Drilling jets is easy and fine.
You are enlarging a hole that is already there.
If the original hole is straight, the enlarged hole will be straight too.
DON’T bypass the...
Forum: Mini Bikes, Trikes, and Choppers 09-13-2019, 12:55 AM
Replies: 3
Views: 115
Posted By bob58o
Under load. Do the plug chops while actually...

Under load. Do the plug chops while actually riding.
I have attempted some tuning in the garage. I burned up a band brake holding the brake while applying the throttle to “load” the engine.
Forum: Mini Bikes, Trikes, and Choppers 09-13-2019, 12:35 AM
Replies: 8
Views: 123
Posted By bob58o
#41 isn’t really any stronger than #35. It...

#41 isn’t really any stronger than #35.
It actually has a lower tensile strength than #35.
If you want stronger chain, go with #40 or #420.

If it’s the standard 30 series TC, the jackshaft is...
Forum: Mini Bikes, Trikes, and Choppers 09-13-2019, 12:13 AM
Replies: 19
Views: 406
Posted By bob58o
Says FLYWHEEL $100 ---------- Post added at...

Says FLYWHEEL $100

---------- Post added at 01:11 AM ---------- Previous post was at 01:09 AM ----------



Says FLYWHEEL $65

---------- Post added at 01:13 AM ---------- Previous post was...
Forum: Mini Bikes, Trikes, and Choppers 09-07-2019, 11:53 AM
Replies: 11
Views: 175
Posted By bob58o
Well if the engine is fresh, then I wouldn’t...

Well if the engine is fresh, then I wouldn’t worry about the 10.8 lb springs. 10.8 are the stock replacement springs. I just thought they might be worn out if you have been running at 5200 rpm for a...
Forum: Mini Bikes, Trikes, and Choppers 09-07-2019, 03:16 AM
Replies: 11
Views: 175
Posted By bob58o
It’s 10 :1 gear ratio. 10 on clutch to 20 on...

It’s 10 :1 gear ratio.
10 on clutch to 20 on JS.
Then 10 on JS to 50 on rear.

5200 RPM is about 29 mph with 10 :1 gear ratio and a 19” tire.

Shoot for a total reduction of about 7.2 :1 and it...
Forum: Engines & Clutches 09-06-2019, 02:06 AM
Replies: 5
Views: 166
Posted By bob58o
Nut on top of the throttle lever not loosened? ...

Nut on top of the throttle lever not loosened?
Can you move the throttle arm easily? If you move it, does it spring back?
Forum: Engines & Clutches 08-31-2019, 10:07 PM
Replies: 18
Views: 218
Posted By bob58o
So the cam in these has “stock” lift and...

So the cam in these has “stock” lift and duration? Same lift and duration as the CL series?
Forum: Engines & Clutches 08-29-2019, 11:39 PM
Replies: 18
Views: 218
Posted By bob58o
I just looked and was surprised to find out that...

I just looked and was surprised to find out that not all those Tillotson engines come with Flywheels. I was previously under the impression that they came with Flywheels rated for 10k rpm.
Forum: Engines & Clutches 08-29-2019, 11:27 PM
Replies: 8
Views: 220
Posted By bob58o
Remove flywheel. Punch the shaft out of the...

Remove flywheel. Punch the shaft out of the block. Use a bolt to plug the hole. I think I tried 1/4-20 first, but ended up tapping for a 5/16” bolt.
Forum: Engines & Clutches 08-25-2019, 02:10 AM
Replies: 1
Views: 103
Posted By bob58o
I think they are 8mm x 1.25 bolts which should...

I think they are 8mm x 1.25 bolts which should have a 13mm head.
Sounds like your sockets are trashed.
You should be able to tell if the sockets are no longer good just by looking at them.
(I...
Forum: Mini Bikes, Trikes, and Choppers 08-23-2019, 03:09 PM
Replies: 6
Views: 156
Posted By bob58o
Ugga Dugga

Ugga Dugga
Forum: Engines & Clutches 08-22-2019, 03:42 PM
Replies: 5
Views: 152
Posted By bob58o
The slack is probably ok. It might just be moving...

The slack is probably ok. It might just be moving so much because of the bent sprocket.
Once all set with wheels on the ground, put the front of the kart against a tree or wall before you start it....
Forum: Engines & Clutches 08-22-2019, 02:46 PM
Replies: 5
Views: 152
Posted By bob58o
Well the sprocket is bent. Is the engine slid all...

Well the sprocket is bent. Is the engine slid all the way forward?
If you can’t slide the engine any further forward, I’d just send it as is.

The clutch shouldn’t engage at idle. If it is, the...
Forum: Engines & Clutches 08-22-2019, 02:40 PM
Replies: 11
Views: 230
Posted By bob58o
How can the engine be both brand new and also ran...

How can the engine be both brand new and also ran every 3 months?
Is there a governor still hooked up?
Have you messed with the linkages at all?
Did you loosen the nut atop the the throttle lever...
Forum: Off Topic Forum 08-17-2019, 07:51 AM
Replies: 412
Views: 12,904
Posted By bob58o
It’s “does” not “dose”. It’s “non” not “none”. ...

It’s “does” not “dose”.
It’s “non” not “none”.
A fine thread 5/16” diameter bolt is the same thing as a 5/16”-24 TPI bolt.
Grown men should not drink White Claw.

I can’t deal with all the...
Forum: Go Kart Discussion 08-13-2019, 11:18 PM
Replies: 4
Views: 199
Posted By bob58o
I’ve use the Black Mamba Jr as well. I also used...

I’ve use the Black Mamba Jr as well. I also used 26lb springs. I have never had any problems with the compression release mechanism. I’ve had a hard time getting hold of Tim. He called me back once....
Forum: Engines & Clutches 08-11-2019, 10:57 PM
Replies: 6
Views: 171
Posted By bob58o
I don’t remember what the tube that the main jet...

I don’t remember what the tube that the main jet screws into looks like but I know it is removable. Some times when trying to get the main jet out of those carbs, the whole piece starts to unscrew....
Forum: For Sale or Trade 08-11-2019, 06:47 AM
Replies: 6
Views: 170
Posted By bob58o
Cheap at Home Depot. ...

Cheap at Home Depot.
https://www.homedepot.com/p/LIFAN-1-in-15-HP-420cc-OHV-Recoil-Start-Horizontal-Shaft-Gas-Engine-LF190F-BQ/203277165
Forum: Engines & Clutches 08-06-2019, 01:23 PM
Replies: 17
Views: 363
Posted By bob58o
Meat from a can is 23% more nutritious.

Meat from a can is 23% more nutritious.
Forum: Mini Bikes, Trikes, and Choppers 08-05-2019, 03:23 AM
Replies: 19
Views: 406
Posted By bob58o
265 Cam. More lift and less duration. Duration...

265 Cam.
More lift and less duration. Duration moves the power band to higher RPMs. Not ideal for your situation, IMO. But, again, depends on your gear ratio. Making power at 7k RPM won’t do you any...
Forum: Mini Bikes, Trikes, and Choppers 08-03-2019, 11:12 PM
Replies: 19
Views: 406
Posted By bob58o
Yes, it is actually better for the sprockets and...

Yes, it is actually better for the sprockets and chain to do it your way. They will wear slower. It is just cheaper to swap the front sprocket. It only costs $15 to replace the front sprocket.
Forum: Mini Bikes, Trikes, and Choppers 08-03-2019, 02:45 AM
Replies: 19
Views: 406
Posted By bob58o
Remind me.... Baja’s have 19” tires and a 50...

Remind me....
Baja’s have 19” tires and a 50 tooth #40/41/420 rear sprocket???
Should take tire size and gear ratio into consideration when selecting a camshaft.
BTW, I think you will get around...
Forum: Engines & Clutches 08-03-2019, 12:37 AM
Replies: 13
Views: 479
Posted By bob58o
It takes energy to compress the springs. Heavier...

It takes energy to compress the springs. Heavier springs than you need will rob power from the engine. A cam will only make power for a certain rpm range. Once higher than that range, the cam (along...
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