Brand new predator 301 build

[Kyle17]

I just installed a stage one kit and removed the governor. Fired on the first pull but spits and sputters at full throttle. The engine has never been ran until today. The kits included heavier valve springs, set lash at .003 on both, cold air intake, header, larger jet and i added an autolite race plug. Any ideas as to why its falling on its face at full throttle?

 

[OPmini]

Yeah its your stock ignition coil, it has an internal electronic governor built into it, so it cuts out at high rpms, it keeps your engine under 6k rpms. If you are going to run a ungoverened non pvl ignition setup try this coil: Ignition coil, racing coil, Big block 390,420,460 | Pauls Karts

 

[Kyle17]

Thank you, ive never had this issue with 212's. When did they start doing this?

 

[OPmini]

Idk when they started using the new ut2 coils but they are on almost all new hondas / predators/ and clones

 

[Kyle17]

Ok, what spacing do you use on the new coil?

 

[Kyle17]

Also will the coil u sent me fit the 301, it says 390 on the site.

 

[OPmini]

Ok, what spacing do you use on the new coil?

I use .035in but do not use less than .030 or more than .070. Also, the coil SHOULD work but I would call Paul from PaulsKarts tomorrow and ask him if that coil will fit 301cc engines just to be safe .

 

[Kyle17]

I will do that, have a few questions. Upon reading about the coil it seems that i may have to get a flywheel too. Thanks for all the help, so glad i joined this forum!

 

[OPmini]

I will do that, have a few questions. Upon reading about the coil it seems that i may have to get a flywheel too. Thanks for all the help, so glad i joined this forum!

You really should get a billet rod and billet flywheel, just for safety reasons I have seen people put holes through their block when running these engines ungoverned without billet upgrades.

 

[Kyle17]

I only upgraded the valve spring one step up as to float the valves before i get too high in rpms. I will eventually go stage 2 with billet flywheel, connecting rod but it is so damn expensive for the 301. Wife would kick my *** if i would have bought all at once. Lol

 

[Kyle17]

I found a honda ut2 non rev limiter coil but it doesnt have a spark plug boot. You have any experience putting a boot on.

 

[Kyle17]

Also found the the rev limiter is 4500rpms on the ut2 coil for 301. Only getting 900 rpm from stock.

 

[OPmini]

I found a honda ut2 non rev limiter coil but it doesnt have a spark plug boot. You have any experience putting a boot on.

I havent ever heard of non rev limiting ut2 coils, I think what you mean is ut1 a similar coil w/o the limiter? I don't have any personal experience changing hard plastic spark boots but bet it is pretty simple.

 

[greggor51505]

I havent ever heard of non rev limiting ut2 coils, I think what you mean is ut1 a similar coil w/o the limiter? I don't have any personal experience changing hard plastic spark boots but bet it is pretty simple.

Do you know if the 196cc and the 212cc are the same way now having this rev limiter built in? Also is there a way to tell if it is rev limiting? like does it look different then the ut1?

 

[greggor51505]

I will do that, have a few questions. Upon reading about the coil it seems that i may have to get a flywheel too. Thanks for all the help, so glad i joined this forum!

Just wondering...when you modified your 301, you said you removed the governor...so your saying you removed the internal governor gear and it also has a rev limiting coil? Just curious cause I am modifying a 301 predator i just picked up from harbor frieght last summer and i removed the governor internally and now I am wondering if I also have the rev limiting coil too...starting to think i shouldve just bought the fully modified tillotson on go power spports after all the expense to mod the 301 and i am gonna near the $700 price for the tillotson..UGH

 

[OPmini]

Yes both the 196cc clones and 212cc engines have ut2 coils, unfortunately, there is no way to tell what coil version you have, but a good rule of thumb is, if you have bought your engine in the last 5 years is probably has the new ut2 rev limiting coil.

 

[Kyle17]

Do you know if the 196cc and the 212cc are the same way now having this rev limiter built in? Also is there a way to tell if it is rev limiting? like does it look different then the ut1?

Upon researching ut2 coil there are four wires instead of one. So it is very easy to tell between a ut1 and ut2 single wire to four wire

 

[OPmini]

Upon researching ut2 coil there are four wires instead of one. So it is very easy to tell between a ut1 and ut2 single wire to four wire

Not sure what you are talking about? I have a ut2 coil and a ut1 coil they both only have two wires, one for the spark boot and one for the killswitch.

 

[Kyle17]

Ok, pulled side cover and i have ut1 coil. Pulled plug and it was running very rich. Went back to stock jet and she runs great now

 

[Kyle17]

Not sure what you are talking about? I have a ut2 coil and a ut1 coil they both only have two wires, one for the spark boot and one for the killswitch.

If i look up ut2 coil it shows a plug that has 4 wires as opposed to ut1 that has a single wire that runs to grounding switch