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Peugeot 103 Eurocilinder (1 reply)
Super fun night tonight! Didn't do any riding or anything, but got quite a lot done on analyzing the Eurocylinder 50cc water kit: Out of the box, it has 192/130 timing, with a single exhaust port (no...
View ArticleHow hard to put 31t front sprocket on Tomos ? (18 replies)
Hey guys, how hard is it to fit a 31t front sprocket on a Tomos. I know some case grinding is called for, but how much and is it in the long run detrimental to the engine or any of the components on...
View ArticleDoppler ER3 for SPX (1 reply)
Hi, I have a Doppler ER3 variator for Peugeot spx, Doppler # 292555. This doesnt fit on a regular 103 crank as the variator side is different. Is there anyway to make this fit on a regular 103 crank?...
View ArticleTomos won't shift into 2nd. (no replies)
I know this has been posted but I can't seem to figure out how to search the forum right. I don't even know what year this Tomos is I have. It ran fine and then over the winter I tried starting it,...
View ArticleUNI vs K&N (9 replies)
Which is better? Which has more air flow? Pros? Cons? Or am I just splitting hairs here?
View Articlemotobecane "6 star?" front brakes compatibility (no replies)
HI my front brakes disintegrated I have extra spoked wheels laying around pug puch etc would any fit? Treats doesn't mention brakes for them.
View ArticleStock Tomos A35(A5) cylinder port timing (2 replies)
Title pretty much says it all. Does anyone have the port timing measurements for the stock cylinder off the A35. I have an extra cylinder and want to give porting ago just to see what I can get out of...
View ArticleDoppler 50cc head question for 50v (no replies)
Hello I have a 76 50v 30mph . I just finished porting and installed a 15 dellorto carb. Its hitting 39-40 mph flat now which is awesome. My question is my decomp broke. I'm not sure if i should buy...
View ArticleNc50 vm 20 jetting. Grenaded 2 Dr 70 kits need help! (no replies)
I have a fresh from the dead 1980 express I have done a lower rebuild on the crank seals and am intimately familiar with this engine this being said I have wasted too much money on heat seizing my jug...
View ArticleSome carb switching between peds (no replies)
Here's the deal: Sachs G3 Athena 70cc with the 15 mil intake paired with a 14 Bing Tomos a3sp stock cylinder 12 mil encarwi with same intake Would this be the cheapest satisfactory and good idea for...
View Articlegarelli 25s 1980 (4 replies)
hi. hope anyone can help me out. i have a garelli 25s 1980 it seems to be same engine that the gulp, and vip have with vertical cylinder. i saw on 1977mopeds a cylinder kit garelli vip 75cc mec eur....
View ArticleA35 70cc kit. What carb? (4 replies)
I'm doing a 70cc kit on my a35 revival should I do the PHBG 19mm or 21mm and the normal one or the race version?
View Article14 mil Bing jetting help (2 replies)
If I put this on my stock a3 with an estoril, what jets range would I need?
View Articleairsal 72cc taking off (2 replies)
so i recently put some new stuff on my puch e50, but when i finally got it all together and started it up, it just took off very fast entirely on its own.. i know its not the throttle because i re did...
View ArticleDerbi PR Tuning: What am I missing? (25 replies)
I can't seem to get this engine dialed in and i'm not sure what I should be focusing on or what order to tune in. Here are the specs on the engine: - Metrakit (cast iron cylinder but aluminum head) I...
View Article2000 Kinetic TFR help please (1 reply)
I've just started getting into mopeds. Currently own a 1977 Puch Maxi, which was originally a 50cc but I upgraded to a 70cc. I don't know anything about engines, how they work, just been trying to...
View ArticleNC50 Build! (2 replies)
Hey guys so I'm looking to light a fire under my express' ass!!! so I'm thinking of forsure going with a MLM honda express intake - VM20 pair with a new mikuni 20mm and some sort of new exhaust...
View Articlehigh top speed, damn slow acceleration (1 reply)
Hey there-- I've got an A35 head/performance exhaust on my 86 tomos. It's got a high top speed on flats, but takes forever to get there, and the acceleration in general is pretty slow. What are some...
View Articletomos a35 parmakit cdi (1 reply)
so my question is will permakit cdi with curve from treatland work on my 2 speed a35 without changing the magneto and flywheel n such is it worth it will it help bottom end
View Articledellorto 15.15 on sachs 505/1A question (3 replies)
I picked up a 15mm dellorto to replace the square bottom bing carb on my 1980 sachs seville but can't seem to attach it to the stock intake without air leaks. It's a little cockeyed due to the idle...
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