my set up- will it work?

[explorer]

I'm replacing a 30 series with a 40 series to go with a new 301cc Predator, is it a problem that the driven is in front of the driver?

 

[Randy H]

No problem. The 40 series driven clutch does need to be mounted inboard. Unless you use a yellow spring.

 

[explorer]

ok, so I need a yellow reverse spring to run it the way it is set up?
what do you mean "inboard"?

 

[Randy H]

In this pic, the 40 series and 20 series are mounted inboard. The 30 series is mounted outboard. It's the orientation of the driven clutch.

Yes you would need a yellow spring to use it the way it is setup now.

 

[landuse]

Inboard means that the sticky out piece of the 40 series driven is facing the engine. The opposite way to what you have it orientated now

 

[explorer]

ok, thanks, so is it difficult to find a yellow spring to fit my driven?
I'm trying to find a video on how to replace the spring

 

[explorer]

do you think all yellow 40 series springs fit all 40 series driven pulleys?

 

[Randy H]

Here is a very good video from Kartfab.

https://m.youtube.com/watch?v=a3FCcLlR-sg#

I did this search. Comet 40 series yellow reverse wound spring.

https://duckduckgo.com/?q=comet+40+series+yellow+reverse+wound+spring&t=fpas&ia=web

Here are a few results.

https://beltpalace.com/comet204524a.html

https://www.bmikarts.com/Reverse-Wound-Comet-Yellow-Spring-for-40-Series-Driven_p_4381.html

https://www.gopowersports.com/40-series-reverse-wound-spring-yellow/ coupon code DIYGOKARTS for 10% discount.

This page shows various parts of the 40 series torque converter.

https://www.gokartsupply.com/mobile/4044seri.htm

 

[explorer]

many thanks, I ordered it from gopowersports, its on the way,
I appreciate your help

 

[Randy H]

Your welcome. Good luck with your project.

 

[aham2003]

Why not just flip your driven around instead of buying a new spring?

 

[landuse]

Why not just flip your driven around instead of buying a new spring?

I am assuming clearance and alignment issues, but you are right...he could do that

 

[explorer]

yes, you are correct, I considered flipping the engine around, moving the sprocket, but it was much easier to get the yellow spring

---------- Post added at 10:03 AM ---------- Previous post was at 09:53 AM ----------

it is operational now!!
I rode it, I tried to post a video