Does anybody sell just the 4-stroke mounting kit?

Finfan · #1 01-14-2010, 10:10 PM

Alright, so Bicycle_engines.com sells a Grubee Stage III kit but are any of the other possibilities available if you want to mount something other than a GX50 or HS engine? It seems like Firebelly's kit is still vaporware and AFAIK EZMotorbikes only sells their equipment with an engine. So are there any other options available? I think I'll pass on the Hoot but the Grubee 4G T is sounding interesting. I'm still trying to figure out my 48 cc or less options. Am I correct in believing that all of these kits work from an engine that has it's own integral centrifugal clutch and a 5/8" shaft.

Right now I am looking at the Honda GX35 or the Robin-Subaru EH035 as the main possibilities, but I'm open to suggestions.

Buddy · #2 01-14-2010, 11:18 PM

Have you checked out Staton? Their kits are a little more than others but are very high quality. I bought my R/S chain drive kit on ebay. With the Bing and ebates cashback I saved over $100 from the website price. Bing cashback was a little higher when I bought mine than it is now. They sell kits with both those engines.

Staton-Inc motorized bicycles, bike kits & gear drive kits.

MotorbikeMike · #3 01-14-2010, 11:33 PM

Hello Finfan, well I do not know what this "word" (AFAIK) means! BUT I do know a bunch about Motor Bicycles, absolutely know EZM, and am familiar with several of the currently popular 4-strokes, so here is a little about them.

Honda GX31, GX35, small, with cent clutch on the short crank, the versions I have seen use 76mm clutch, and the hub is installed kinda "recessed" into the crankcase.

Robin Subaru 35cc uses a similar clutch, flush with the mounting flange also. Titan, Hoot Chain-drive, and Grube 4G all have similar 76MM clutch, again pretty flush with an extended engine case.

These engines will work on the friction, and other systems that use the 78mm clutch bells, and are not well-suited to the better in-frame systems.

Typical Hoot has 15.1MM turned down crankshaft with 3/16 key-way. Grube gear drive boxes have 16mm or 5/8 nominal crankshaft sticking out the side, less engine case on the right side (about 1 inch). These have a key way that is a little smaller than 3/16.

Honda GX50 5/8 shaft, 3/16 key way, easy deal, bad carb hookup. I and WE at EZM use 15.1mm, and 5/8 shaft that stick out the side of the engine. Easy deal, works well, no worries.

HF Greyhound we have already done, no big deal, a bolt-on for the Q-Matic, or Silent Power Drives.

We are looking into adapters for the "challenged" crankshaft models.

EZM does not use the little on-board weed eater type clutches, we made our own system (Silent Power) and use Max Torque (Q-Matic) special series clutches, no Chinese weed eaters to power us.

The Q-Matic is now availble as a stand-alone product, to be used on whatever the customer dreams up.

This should answer some of your questions?

Mike

azbill · #4 01-15-2010, 07:46 AM

AFAIK = as far as I know

Finfan · #5 01-15-2010, 01:33 PM

That's what I love about this forum, ask and you will get answers!

I've looked at the Staton kits but they don't seem to have anything for a simple in frame mount.

Thanks for the info Mike! You may get some PM's as I try to work out the details of this plan. Progress of course will mainly depend on my employment status and income. I think I may want to quiz you on what is involved in fabbing a converter for one of those "challenged" engines.

Thanks!

tyrslider · #6 01-15-2010, 01:36 PM

Fin,
I don't know if vaporware is quite right but Dan and I will be puting it through it's rigors before it is brought to market.
FireBelly does sell custom aluminum engine mounts, "standard" engine mounts are $57 and custom are $77 made to fit virtually any motor in virtually any frame. Price on website is wrong, I thought my wife edited that error, so thanks for bringing it to my attn.!

Finfan · #7 01-15-2010, 01:45 PM

Thanks! I'm afraid I use vaporware to refer to any product that is still in development but not available. Would "Unobtainium" be better?

tyrslider · #8 01-15-2010, 01:57 PM

I do like inobtanium! No offense taken Fin. I was having fun w/ it! Be well! Evan.

Buddy · #9 01-15-2010, 03:02 PM

Quote:

Originally Posted by Finfan

That's what I love about this forum, ask and you will get answers!

I've looked at the Staton kits but they don't seem to have anything for a simple in frame mount.

Thanks for the info Mike! You may get some PM's as I try to work out the details of this plan. Progress of course will mainly depend on my employment status and income. I think I may want to quiz you on what is involved in fabbing a converter for one of those "challenged" engines.

Thanks!

Why are you bent on in-frame? The Staton kit was very easy to install. I guarantee an in-frame kit won't be easier. I like my engine behind me. Maybe other people don't like the engine in the back.

Finfan · #10 01-15-2010, 10:10 PM

Quote:

Originally Posted by Buddy

Why are you bent on in-frame? The Staton kit was very easy to install. I guarantee an in-frame kit won't be easier. I like my engine behind me. Maybe other people don't like the engine in the back.

I really like the way my current bike is set up and the only way I can keep that is to use an in frame system. I want to go to a 4-stroke for improved reliability and the ability to fuel up at any gas station, and I want to be as legal as can be so I don't end losing my ride because some cop with an attitude happens to know small engines. That leads me to developing this rather hair brained plan.

Besides I like to tinker!