New member help

[Downeastah22]

New member here looking for help hopefully in the right forum. Just purchased a rovan 5b 305a 30.5cc buggy. Came with tuned pipe. Went through break in per manual and needles set on high 1.5 and 1.25 low needle. Goes like crazy very surprised by the power even wheelies on occasion. Only issue is at top end it seems to pop or spit almost like a rev limiter. Tried messing with high needle rich and lean but still does it. I will note i have the velocity stack with dt1 tripple filter already installed. Any advice is appreciated.

 

[Z.hb71]

Sounds Rich. And welcome

 

[Downeastah22]

Thanks for the reply. Rich on high needle i assume? Just trying not to blow it up being to lean. Whats everyone setting theres at?

 

[Z.hb71]

Thanks for the reply. Rich on high needle i assume? Just trying not to blow it up being to lean. Whats everyone setting theres at?

Yeah Rich on the high speed needle. There is no one size fits all settings. Your settings vs mine will differ Because altitude, weather, ect. So you need to tune by sound and smoke. Here's a video to help you with tuning

Skip to 15:34 for tuning ?

 

[DougStar]

Welcome ??

 

[Downeastah22]

Wish he had a pipe on that in the video that ones quiet lol. Mine doesn't sound like that one. Blisters the tires on tar to which makes me think its fine. Maybe its just because of the pipe. I will keep trying with small 1/16 turns. Literally sounds like its missing at high rpm.

 

[evssv]

welcome aboard dude ?

 

[Downeastah22]

Wish i got one sooner. These things are so much better than electric in my opinion. The power is nothing like what you see on youtube. In person its is nuts.

 

[Seandonato73]

By missing you mean 4 stroking. Like z said normally indicates a overly rich adjustment. If you could post a short video of it it would help (don't ask me how I'm more or less computer video illiterate)

 

[Downeastah22]

I have had alot of dirt bikes/atv two and four stroke. Yes like a four stroke rev limiter. Thanks for all the replies i will try to post a video soon.

 

[crucialRC]

I took my Rovan 32 out last weekend and it did something similar. I tried taking some out on the high also. It got better but never got all the way right. I didn't want to go too far with it so I stopped. I chalked it up to Rovan carbs. Get a good Walbro and I'm sure it will clear it up. Welcome by the way??

 

[Jshaff16]

is it too late to return it??

PS..Welcome! I'm new too lol

 

[Striikar]

Welcome?

 

[AnubisBC]

I was wondering that about the Rovan carbs. Get yourself a walbro 1107, should make tuning much easier and on point. It's a lot cheaper than buying a whole new motor because the oem ran you lean and blew the lid.

http://www.davesmotors.com/walbro-wt-1107-carburetor-585727601-zenoah.html

And welcome to the chaos!

 

[Downeastah22]

UPDATE: Problem solved. Before i installed all the outerwears i was disassembling the motor constantly to clean out buildup. While doing this i obviously had to pull the coil. After sleeping on it i pulled it apart and re gaped the coil about 3 mm to 4mm. Now no more rev limiter noise. Now full braaaaap!!!. Thanks everyone.

 

[Losi125]

Thanks for posting the conclusion

 

[Minnesota RC]

UPDATE: Problem solved. Before i installed all the outerwears i was disassembling the motor constantly to clean out buildup. While doing this i obviously had to pull the coil. After sleeping on it i pulled it apart and re gaped the coil about 3 mm to 4mm. Now no more rev limiter noise. Now full braaaaap!!!. Thanks everyone.