moped motor question

<HTML>I have a Bronko that is made by Fantic Motors.

Years ago I needed it repaired (tuned) as it had been sitting for years before I bought it. The shop that got it running for me has since shut down and there are no moped shops in the area. I've been told by more than one motorcycle shop that the motor is the same as from a moped. The shop that did the work on it also agreed that it was basically a moped on a small motorcycle frame. The carb is a delorto.

My question is about spark plug size etc. I am not able to locate tech info on moped engines. Any help here would be greatly appreciated. I am new here. Thanks!</HTML>

RE: moped motor question

<HTML>I should have added that it has a minarelli motor on it. Thanks again!</HTML>

RE: Broncco &amp; Minarelli

<HTML>Well, it would help if I could spell. In my other message, I misspelled the name of the model.

I since learned from Sean at Myron's Mopeds what kind of spark plug to use. Mine was fouled and the carb needed to be cleaned. It runs only at full throttle and his best guess is that the muffler(a large flat box under the motor) may be clogged. I will remove it in the morning. I will also check the carb jet for correct size.

Any other input from here would be great. I have no manual etc. on repairs for it.</HTML>

RE:digging deaper

<HTML>The more info I get, the more questions I have..

After deciding to tackle the problem again tonight, I grabbed the flashlight and headed to the garage. The carb is leaking alot. I removed the fuel line at the carb and plugged it. I checked the spark plug to make sure that it was not soaked with fuel. It was not. I then removed the muffler (per the long distance call to a mechanic in Ca.). I'm in a part of FL that does not have amoped service or sales shop within miles. The muffleer was not clogged(I checked by blowing thru it with ease). I also removed the air filter so it could "breathe all the air it wanted. I started the bike with only the fuel left in the carb. It ran great. Now, the carb is overflowing due to either the float not working or the needle valve is no good, correct?

Am I on the right track as I post the progress on troubleshooting this motor? </HTML>

RE:digging deaper

RyanPrice /

<HTML>Yah I would think you are getting closer. As for your bike, I just bought this weekend a Suzuki FA50 Commuter. As the OLD designation goes, it's a Motorcycle (that can only go 35 mph), but I took it down to the DMV when I got it running yesterday (it sat for 6 years and runs great -- needed to clean the spark plug only) and they said that since the law changes it's now a Moped, so no charge on changing the title. 50cc 2 stroke 1991 year model. So - You might want to check on that in FL. I dont know what their qualifications are, but here it's a BIG difference (I dont need a Motor Cycle lisence for instance - and I get to follow both Motorcycle rules - normal lane changing etc - and bike rules - bike lanes and passing on the right shoulder).

As for your leaky Carb. Yah I would check the jets. Sounds like either your air cleaner is clogged (if it's foam like mine - it might be a little gunked) or that you have a fuel problem. The leak on the carburator could be causing you to loose more fuel than you burn - ie it stalls then starts ok after about 30 secs. The best bet for you to do is to take the tank cap off and blast out the fuel lines with an air hose, and clean out the tank pretty well to get rid of the gunk. Then take the carb out if possible and clean it pretty well. I would think that sitting for some time has gunked it up pretty well. I was lucky - mine was drained first. Anyway - hope these are some good answers.

Ryan

PS> MotoMorellie (Um - morenini???) (spelling) is still making engines in Italy. Check them out, maybe they still make parts for you.

B G wrote:

-------------------------------

The more info I get, the more questions I have..

After deciding to tackle the problem again tonight, I grabbed the flashlight and headed to the garage. The carb is leaking alot. I removed the fuel line at the carb and plugged it. I checked the spark plug to make sure that it was not soaked with fuel. It was not. I then removed the muffler (per the long distance call to a mechanic in Ca.). I'm in a part of FL that does not have amoped service or sales shop within miles. The muffleer was not clogged(I checked by blowing thru it with ease). I also removed the air filter so it could "breathe all the air it wanted. I started the bike with only the fuel left in the carb. It ran great. Now, the carb is overflowing due to either the float not working or the needle valve is no good, correct?

Am I on the right track as I post the progress on troubleshooting this motor? </HTML>

RE: moped motor question

Tony Espinoza /

<HTML>Try Dave Rosse..(760) 256-5986 Barstow Ca..Most of the spark plugs I have seen are similar to a Nippon Dens W-20-fsu as far as reach and how hot the plug is..He could tell you more..Contact him..Tony</HTML>

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