Save Money and time! By 89newbie (Read 665 times)

[89newbie]

Have a 50 large frame Wildfire. Seems to me moddin it will result in crank bearings failing early in life. Is there a complete drivetreain available out there in Moped land that I can swap and make this thing run faster and more dependable? Seat of pants says sell it get a bigger moped.

[madcollie]

"Seat of pants says sell it get a bigger moped."

Why not sell it and get a bigger scooter?

M/C

[Cruiser]

Mar 19, 2011 13:10:13 GMT -6 89newbie said:

Have a 50 large frame Wildfire. Seems to me modding it will result in crank bearings failing early in life. Is there a complete drivetrain available out there in Moped land that I can swap and make this thing run faster and more dependable? Seat of pants says sell it get a bigger moped.

Welcome to Scooter Doc, 89newbie. There are 80cc engine assemblies available which might bolt right into your scoot. I have seen them for about $400. It all depends on what you are looking for in performance. The 139QMB engine will handle a big bore kit up to 72cc (commonly called an 80cc upgrade kit) without much drama. These engines commonly appear as 60cc (44mm bore) in other countries with some sneaking in as 49cc into this country. The 49cc versions are actually downsized to meet the US requirements for mopeds, so they are really designed to be able to withstand some modest upgrades. Some scoot modders are able to get 45 to 50 mph as long as they don't go excessively long distances at WOT. 45 to 50 mph is well into the redline which can be bad for the bearings as well as valves and pistons. The big bore kit along with some carb and variator tuning will give the most bang for your money.

How about telling us a little about yourself along with maybe some scoot pictures in the new members section? Happy to have you here.

[89newbie]

Mar 19, 2011 13:32:34 GMT -6 Cruiser said:

Mar 19, 2011 13:10:13 GMT -6 89newbie said:

Have a 50 large frame Wildfire. Seems to me modding it will result in crank bearings failing early in life. Is there a complete drivetrain available out there in Moped land that I can swap and make this thing run faster and more dependable? Seat of pants says sell it get a bigger moped.

Welcome to Scooter Doc, 89newbie. There are 80cc engine assemblies available which might bolt right into your scoot. I have seen them for about $400. It all depends on what you are looking for in performance. The 139QMB engine will handle a big bore kit up to 72cc (commonly called an 80cc upgrade kit) without much drama. These engines commonly appear as 60cc (44mm bore) in other countries with some sneaking in as 49cc into this country. The 49cc versions are actually downsized to meet the US requirements for mopeds, so they are really designed to be able to withstand some modest upgrades. Some scoot modders are able to get 45 to 50 mph as long as they don't go excessively long distances at WOT. 45 to 50 mph is well into the redline which can be bad for the bearings as well as valves and pistons. The big bore kit along with some carb and variator tuning will give the most bang for your money.

How about telling us a little about yourself along with maybe some scoot pictures in the new members section? Happy to have you here.

Thank you for the comeback. How do I find out the series of the engine? Wildfire does not return calls! I am not at all opposed to modding. I am opposed to building on a weak bottom end. Barrell head piston, lol no problem. I owned the third 500 Suzuki 2 stroke made and modded the hell out of it, dreamed up some backyard stuff the local shop submitted to Suzuki way back in the day, er 1969. I have played with the wildfire, modified a few things but it just needs a little more umph. It would be easier to talk to God than get a straight answer from wildfire! Another reason to think bigger engine is electrical output, or do 50'S and 80's or 125's have the same limited electrical capacity? Im thinking that since the lights suck its something that can not be adressed.

[Cruiser]

The engine ID number should be located just above the center stand:



The smaller scoots have similar electrical systems so the total output won't be much different between 50cc to maybe 125cc. Easiest way to help is switch over to all LED lights for the DC side. The smaller scoots use AC for headlights so LED's won't work there. Going to a 25 watt headlight from a stock 18 watt or from a stock 25 to a 35 watt should work OK.

[89newbie]

Edited for clarity - Cruiser

M License since 1967. Biggest reason to swap engine is economy of engine change, if possible Gave 1500 bucks for wildfire new , dont think it is a bad bike based on 44 years of motorcycles and remembering back in the day, what we did then. Value of wildfire right now $500.00 This bike handles very well, brakes are great ride is great. Also I think with all the bikes out there, unless you have bucks to buy Jap, I might buy a pig in a poke that is not as good as what I have simply to get more engine. I cant justify the 2-3 grand needed for what I will buy next, so back to the good old days of modifying. Now maby you understand the post to go to a 125 drivetrain?

I bought small because when we bought the mopeds, (hers is a 3 wheel Ice Bear), we lived in town and level put put type playing. Now we moved to the farm in the mountains and I ride the hills. 13-17 MPH (GPS) 20 to 25 indicated does not cut it with traffic, and a 45 MPH speed limit. 30 MPH would be better. Brakes are great suspension very good handeling great. I have also allready done light upgrades, battery storage upgrade. Main thing is I like this little bike

[89newbie]

Whats a clinician?? RE Engine model & number, the pic did not come thru until I was on thread for a while. Thank you.

[Cruiser]

Mar 20, 2011 23:42:51 GMT -6 89newbie said:

Whats a clinician??

Shows you are officially a part of the Scooter Doc scooter medicine establishment. Your title will improve as you keep posting to the forum. Depending on any special knowledge or unique contributions to the forum's information database, you might even get a special title which is independent of the total times you post on the forum.

[mthomas]

Surf CL, tons of 150's for 600-700 in my area daily.