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If it were the gas how would you fix that (without going slower)? Also the sound that it makes sounds exactly the same when you turn off the engine, so I think it is loosing spark.

Hi I recently purchased a 13 HP Harbor Freight Greyhound Honda clone. The engine runs great on level ground but cuts in and out on bumpy ground. I know that it has a low oil sensor but I think I disabled that. I figured out that if you ground the black wire to the engine that it cuts the spark...

I already tried the old bushing but it was 1/64 inch to small. I will call tomorrow and demand a bushing. Thanks.

My brand new comet 30 series 1 inch bore driver just arrived and it has no brass bushing??? My old 3/4 inch driver had a bushing, so why does the 1 inch not? Im confused and I dont want to ruin my belt! Any thoughts?

You might need to lube ur driver. check out this helpful video http://www.reliablegokarts.com/transmission.htm

The new driver is a 30 series, just a 1 inch bore instead of the 3/4 in bore. I just want to know if my theory is correct and if their are stronger belts for the 30 series.

Hello everyone, My name is Spencer and im 18. I joined this site last week to find answers for my many kart related questions. My kart is a 6 year old Manco Dingo that I got when I turned 12. 6 years later ive decided to drop in a new 13 HP engine to replace my 5 HP. I have lots of questions...

Hi guys, I just got my new 1 inch bore driver for my 13 HP engine. I believe that it is a larger diameter than my old 3/4 inch bore driver. I am concerned that my new larger driver combined with my bigger engine will put a lot of strain on the belt because the driver will try to pull the belt...

Hello, I just bought the same engine today (13 HP) at HF! Boy that engine is huge and I cant wait to fire it up. I also have a 30 series but I have not installed it. Ironically, I just opened up a thread regarding this issue and from what I have heard it will be fine to use ur existing 30...

Comet must under rate their stuff because the 30 series are only rated for 8 HP. Is this true? Also, what would I gain by upgrading to the 40/44 series? I am new at this!

I already have a working torque converter and all the necessary components. I am simply replacing my existing engine with a bigger one that has a 1 in. shaft instead of a 3/4 in. shaft. I do not know if a comet 30 series torque converter can handle 13 HP. If it could handle the HP, then I would...

Hello, I just purchased a new 13 hp engine to replace my 5 hp engine. I wish to use my existing torque converter which is a comet 30 series. My problem is my current driver is bored to 3/4 in. and my new shaft is 1 in. It looks like I am forced to get a new driver which leaves me with 2...

The thing with the numbers lets you control spring tension, which in return controls the engine rpm's I would try putting the spring in all 5 of the holes because you dont know which one it fell out of. Each time you try a different hole take the kart out for a spin and see which hole gives you...

Well, thanks t0x1k for the reply. That is an interesting point about the shaft seize being 1 inch and up for 8 hp engines because my 5 hp Robin Subaru has a 1 inch shaft. As far as the engine mount is concerned it is a flat plate. I measured the mounting holes on the new engine and they appear...

Hello, I'm going to upgrade my single seater go kart which came with a 5 hp Robin engine to a 13 hp Greyhound engine from Harbor Freight. My main concern is the torque converter which is a Comet 30 series (rated for a max of 8 hp). Considering that I am the primary driver, I was wondering if i...