Locked up while blasting (9 replies)
We'll took the hobbit for a several mile trial run with new setup/build. Seems temps got too hot, cause the rear wheel locked up while blasting @50mph). Thought being belt driven it would not happen,...
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No more leaky av10 ball joint (3 replies)
I'm using a vband style flange/clamp from some lab apparatus and vacuum assembly, it's got a centering ring and an oring for seal. the swivel part has a bellows style tube inside that ball, the ball...
View ArticleWhat are the best tires for a nc50 (3 replies)
What are the best tires for a 1980 Honda nc50 that will fit under the fenders without any mods?
View ArticleTOMOS A GOGO (4 replies)
so my friend just got not one but two tomos targas with the a35 motor for $500. both stock except a bi turbo pipe. question is the step thru one he has bogs down like crazy when the second clutch...
View ArticleIs it worth getting a 70cc kit for a express? (5 replies)
Is it worth getting a 70cc kit? Do you have to mod anything? Also can you use the stock head? If so what is the best option? (80 Honda nc50)
View Articlecarb options on ported e50 (4 replies)
looking into carb options for my magnum e50 that my buddy Zach just rebuilt and ported for me. Going to be pairing it with the mlm peoples pipe and was looking around at carb options. Saw the polini's...
View ArticlePuch euro kit (4 replies)
Need suggestions on a good exhaust for the 47mm Puch euro kit . It's going on a Revival with an A55 motor .* Moved to this forum by grahammotzing  Â
View ArticleBing internal fuel filter (no replies)
[attachment 157784 IMG_4900.JPG] [attachment 157785 IMG_4901.JPG] I've used these on a few bikes and haven't had one gum up yet. Its not a replacement for an inline filter. Just thought I would share.
View ArticleTomos A3 jetting (3 replies)
Hi all, I know there are hundreds of jetting threads but hoping for some help. I have a stock tomos A3MS apart from not running an airbox. Do I need to upjet? Plug comes out a little black and sooty...
View ArticleHow does the Dellorto and OKO/PWK jet sizes compare ?? (no replies)
I know for a fact from experience that jet sizes from different manufacturers are not always the same size numerically speaking. So if I jump from a Dellorto with a 70 main jet over to a Polini carb...
View ArticleHow does the Dellorto and OKO/PWK jet sizes compare ?? (no replies)
I know from experience that jet sizes from different manufacturers are not always the same size numerically speaking. So if I jump from a Dellorto with a 70 main jet over to a Polini carb that uses a...
View ArticleKinetic TFR trouble replacing rear pulley (2 replies)
Got a 105mm real pulley for my kinetic to improve low end performance. Problem is I can't find a belt that will fit. Anyone know anyway to adjust engine/or anything to fit a belt that's about 12mm too...
View Articlehobbit not starting after sufffy crank (4 replies)
so installed a stuffy crank in my hobbit and I cant not get the bike fire I have spark. running cdi stock carb bos reeds pipe 70cc any help would be great.
View ArticleKitted Flat Reed Derbi impossible to pedal start (3 replies)
I can bump start this no problem everytime but my girlfriends prefers to pedal start. It's really hard to pedal start this motor. Does anyone have any suggestions? I think i might try adding a thicker...
View ArticleExperimental Variator Weights (1 reply)
(Note: I'm working with a Vespa Bravo, but the principles I'm talking about ought to be fairly universal to all variated machines.) I've been playing with my variator weights. I've lightened the stock...
View ArticleJc penney swinger (2 replies)
Is the jc penney swinger a good moped for modification?One came up for a little under 500 which i feel is a good price. I know it has the puch engine, so it could use the performance part for puchs.
View Article20mm bing (5 replies)
Just wondering if anyone has ever used a 20mm bing? If yes, how did that go? Trust me I know how most people feel about using bings. Ken I'm looking in your direction....
View ArticleE50 How much timming is to much? I want speed and reliability (13 replies)
So basically I've trying to tune this monster in. So I had an issue with eratic timming, decided to rebuild found a wobbley bearing. now I'm back on plane with a fresh stable motor working on timming...
View ArticleCan you use the stock qt50 head on a Malossi 70cc kit without modding the...
Do you have to mod the stock head of a qt50 with the Malossi kit?
View ArticleDrilling into the end of nu50 stock muffler for speed (15 replies)
My mechanic advised me to cut off the tip of my NU50's stock muffler and drill directly into it for better airflow. 2 questions. Will this work? Do I have to cut the tip off to do it? Can I just drill...
View Articlederbi 44mm airsal jetting issues (2 replies)
here's the setup and then i'll go into the issue: * 44mm airsal NO PORTING --- ports open and close as they should * stock head * stock reeds * custom 21mm intake * 21phbg spigot mount carb --- w7...
View ArticlePipe Welding (2 replies)
Hi All, I've finally progressed to the point where my exhaust has begun falling apart. It's one of the newer Peugeot Simoni Circuit pipes that appears to be better reinforced than the earlier batches....
View ArticlePipe Welding (no replies)
Backpressure loss from a spitting manifold insert and weak baffle welding are the issues. The pipe I'm referring to is the Peugeot Simoni Circuit pipe. It appears to be better reinforced than the...
View ArticleQuestion on wiring the parmakit 2 wire cdi (2 replies)
So I bought Parmakit cdi box for sooooooo many bikes and was wondering about wiring in a kill switch. There are just two connections, one for your cdi pulse in and one out to a coming ground. Can I...
View ArticleAv10 Er3 and clutch pulley (1 reply)
I just sold a motorcycle so I treated myself, I can't wait till saturday
View ArticleTomos Dellorto 15 Stock Jet (no replies)
I've searched and searched the wiki, tuning charts, forum and just can't find an answer. Simple question. '83 A3 (30MPH version) stock cylinder and exhaust. Putting on a SHA 15 with mlm side intake...
View Articlenow i've done it... (4 replies)
so I have this old cobra pug pipe (the 30 buck one) that worked great for about 6 months... the weld where the header enters the chamber had broken free at the chamber so I thought I'd go ahead and...
View Articlewhat do you think of your hobbit TJT,race crank, HPI Ignition (7 replies)
i was just offered TJT,race crank, HPI Ignition, bearings and seals for a hobbit pa50 ii at a decent price! should i do it?! have you enjoyed your HPI or your TJT/racecrank much? why? i am clutching...
View ArticleHobbit Variator (3 replies)
Wasn't getting the desired speed I was looking for . Opened up the Variator and this is what I saw. Two set of broken guides . I saw treats have them for $7 a pop . I'm planning on notching the...
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